CN101630901B - 具有升压辅助线圈电源的开关式调节器 - Google Patents

具有升压辅助线圈电源的开关式调节器 Download PDF

Info

Publication number
CN101630901B
CN101630901B CN2009100057070A CN200910005707A CN101630901B CN 101630901 B CN101630901 B CN 101630901B CN 2009100057070 A CN2009100057070 A CN 2009100057070A CN 200910005707 A CN200910005707 A CN 200910005707A CN 101630901 B CN101630901 B CN 101630901B
Authority
CN
China
Prior art keywords
circuit
voltage
lifting
ancillary coil
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN2009100057070A
Other languages
English (en)
Other versions
CN101630901A (zh
Inventor
约翰·L.·梅尔森
玛洛·L·盖塔洛
卡尔·汤普森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cirrus Logic Inc
Original Assignee
Cirrus Logic Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cirrus Logic Inc filed Critical Cirrus Logic Inc
Publication of CN101630901A publication Critical patent/CN101630901A/zh
Application granted granted Critical
Publication of CN101630901B publication Critical patent/CN101630901B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S323/00—Electricity: power supply or regulation systems
    • Y10S323/901—Starting circuits

Abstract

本发明公开了一种开关式功率变换器电路中，在变换器启动阶段前面为控制电路或其它电路提供驱动电压，具有提升功能的辅助线圈电源。一个电压提升电路具有一个输入端，耦合连接到所述辅助线圈，至少在开关式功率变换器的启动阶段由辅助线圈提升可用电压。提升后的电压比在开关式功率变换器启动阶段通过辅助线圈的电压更大。电压提升电路可以主动切换速度相比开关式功率变换器的切换速率更高，从而增加驱动电压的上升速度。开关式功率变换器控制电路可以提供极性信息，用来主动调整辅助线圈的输出。

Description

具有升压辅助线圈电源的开关式调节器
技术领域
本发明涉及一种开关式功率调节器电路，尤其是一种具有辅助线圈电源的开关式功率变换器，其辅助线圈电源包括一个用来增加可用电压的电压提升电路。
背景技术
为了给开关式功率变换器的控制电路提供电源，辅助线圈时常被采用，尤其是在启动时候变换器输出电压升高不足，或者使用中变换器输出或输入的内部低压辅助电源失效或者效率很低，例如在高压输入变换器中。由于辅助电源通常不需要提供太大电流，用来滤除辅助电源输出的大的交变电流的滤波电容或LC电路与变换器的输出滤波器相比是非常小的。因此，辅助电源的电压能够比变换器的输出端更迅速的提升，并且比变换器本身的输出更早的作为控制电路的电压源来使用。
但是，即使是辅助线圈电源装置也需要时间，使得用来滤除来自辅助电源的大的交变电流的变化量的滤波电容或者LC电路达到足够的电压来驱动控制电路。因此，在变换器切换电路在控制电路没有辅助线圈驱动的时候仍然需要一个启动延迟时间。
因此，提供一种辅助电源电路以及一种在开关式功率调节器的启动周期中更早的时候为控制电路以及/或者其它电路提供驱动电压的方法就非常有必要。
发明内容
本发明所要解决的技术问题是提供一种能够由一个辅助线圈在开关式变换器的启动周期中更早的为控制电路以及/或者其它电路提供驱动电压的开关式变换器，以及这种开关式变换器的驱动方法。
为解决上述技术问题，本发明开关式变换器的技术方案是，包括一个感应存储元件，该感应存储元件包括至少一个初级线圈和一个辅助线圈。所述辅助线圈连接到一个电压提升电路，所述电压提升电路由于交变的磁感应切换使得辅助线圈的可用电压足够高，因此就可以在开关式变换器的启动周期中更早的为控制电路以及/或者其它电路提供驱动电压。电压提升电路可以使用辅助线圈的漏电感，从而降低漏电感的增加，或者使用另外的电感作为电压提升电路的感应存储元件。
为了提高驱动电压提升的速度，电压提升电路的切换速度比开关式变换器的切换速度更高。由驱动开关式变换器的控制电路提供的极性信息，并用来主动调整辅助线圈的输出。电压提升电路可以与开关式变换器的控制电路，以及可选择性的与切换电路集成在一个单独的晶圆上。
下面结合附图和实施例对本发明作进一步详细的说明。
附图说明
图1本发明开关式变换器一个实施例的结构图；
图2A为图1所示的实施例中电压提升电路12的一个实施例的结构图；
图2B为图1所示的实施例中电压提升电路12的另一个实施例12A的结构图；
图3A为图2A中电压提升电路12的信号图；
图3B为图2B中电压提升电路12A的信号图；
图4为图2A中电压提升电路12的另一个实施例的信号图。
具体实施方式
本发明提供了一种为开关式功率变换器内部的控制电路以及/或者其它电路提供电源的电路及方法。所述电路由一个开关式功率变换器的辅助线圈驱动，并且包括一个用来提高辅助线圈的可用电压的电压提升电路，使得控制电路以及/或者其它电路在开关式功率变换器的启动周期中，在其它被动滤波整流辅助电源电路供电之前提供足够的驱动电压。
如图1所示为本发明开关式功率变换器的一个实施例。切换控制器10提供一个切换控制信号CS，用来控制一个由晶体管N1构成的切换电路。当晶体管N1导通时，感应存储元件由于输入电压VIN加载到电感L1而由电感L1驱动，使得电感L1的电流线性增长。当晶体管N1断开时，电感L1释放功率，并通过二极管D1流入电容C1，使得输出端OUT的电压增加。所述变换器可以采用buck变换器(buck converter)电路，其能够根据一个通过电阻R1产生的反馈电流IOUT，以及由输入电压VIN通过电阻R2产生的输入感应电流Iin控制提供给输出端OUT的电压。一个电流分流器电路(currentsplitter circuit)13接收电流IOUT以及Iin，并且由于电容C2通过二极管D10和D11中的至少一个进行充电从而在辅助电源电压VAUX提供最初的驱动电流。
电流分流器电路13提供的为电容C2充电的电流足够驱动控制器10，但是在没有电压提升电路12对电容C2进一步充电的情况下不够驱动晶体管N1的栅极从而使其进行切换动作。在首次切换晶体管N1为电容器C2再次充电，使得电压维持在足够高的水平从而驱动控制器10，并且在多次切换之后产生辅助电源电压VAUX的同时，电压提升电路12启动。本发明所描述的包含有电压提升电路12的辅助电源电路如图1所示，其在晶体管N1的第一个切换周期之后，控制器10的驱动电流和切换晶体管N1的栅极的电流就产生了。图1中所述的buck变换器仅仅是本发明应用电压提升电路的开关式电源电路的一个实例。但是，其它形式的开关式电源电路以及本发明下文描述的技术也可以构成本发明其它形式的开关式电源电路的实施例。
在本发明中，用来驱动控制器10的临时电源(或者其它可选延时电源)由电压提升电路12提供，其接收来自于电感L1的一个辅助线圈aux的信号，并且产生一个辅助电源电压VAUX。因为在晶体管N1导通的时候，输入电压VIN加载到L1的初级线圈，辅助线圈aux上就会产生电压，并且大小为VIN×Naux/N，其中VIN是输入电压VIN的值，Naux是辅助线圈aux的圈数，N是电感L1的初级线圈的圈数。在启动时，输入电压VIN也在增加，可能增加的非常缓慢。例如，如果设计电源是60Hz的交流电源，调整后的波形为120Hz半正弦波形，其提升速率很慢。因此，辅助线圈aux的可用电压提升的也很慢，有可能延迟为电源控制器10供电的电源电压VAUX提高到足够高的时间。
本发明中，电压提升电路12通过使电源电压VAUX提高到比辅助线圈aux的可用电压的最大值更高，更早的为电源控制器10提供了可用的并足够大的电源电压VAUX。多种适合于提高电源电压VAUX的电压提升电路将在特定的附图中被进一步描述。本发明实施例中，一些电压提升电路需要有控制信号CSA和CSB，一些则不需要。因此，当控制器10在下文描述中由于驱动电压提升电路12而包括特定的电路，下文对于特定的电压提升电路将有非常清楚的说明指出，应用控制器10时，可能只提供需要的信号。在本发明的一些实施例中，一个时钟提升电路14提供一个脉冲提升信号CSB，其速率足以比切换控制信号CS更高(例如4MHz相比100KHz)，从而使辅助线圈aux的可使用的相关的低电压获得数倍的提升，从而使得电源电压VAUX在功率切换变换器电路的启动周期中较早的达到需要的水平。另外一个控制信号CSA，与切换控制信号CS相同，可以用来指示线圈aux的电压的极性，并用来与电压提升电路12一起主动调整辅助线圈aux所提供的电压，在没有所需要的感应电流的启动极性的指示，以及辅助线圈与感应存储元件的初级线圈的极性对应关系的情况下，提供输出电压VAUX的正负极的识别。
另外，因为提升动作有可能使得电源电压VAUX的电压值达到比所需要的水平更高，在成倍提升脉冲信号的例子中，脉冲数决定了提升量，而一个过压电路16可以终止时钟提升电路14产生提升所用的脉冲信号。过压电路16像稳压器一样，可以确保电源电压VAUX多余的电压增加，在达到一个极限电压时通过对电源电压VAUX放电而完全被阻止。最后，由于特定的工作环境例如由于突然的脉冲而造成的空载，以及由于辅助线圈电压变小而造成的低电压，电源电压VAUX会降到很低。一个欠压探测器18可以继续利用电压提升电路12提供电压提升从而恢复电源电压VAUX。
在本发明的一个较佳实施例中，由于设计电感L1，在正常负载情况下，辅助线圈aux所提供的电压对所需要的通过被动调整得到的电源电压VAUX来说足够大。主动提升动作和可选的主动调整能够在启动阶段的早期被终止，在欠压发生时被再次启动。
图2A所示的为图1中所示的电压提升电路12。辅助线圈aux耦合连接到一个由晶体管N4构成的提升开关，该提升开关由控制信号CSA控制，从而提供使电感L1的辅助线圈aux和可选的附加电感L2短接的提升脉冲。电感L2为可选元件，如果辅助线圈aux的漏电感不足以提供提升电压，电感L2与辅助线圈aux串联。辅助线圈aux输出的主动调整由一对直接连接根据辅助线圈aux的电流方向而短接的端子AUX1或AUX2的晶体管N2和N3完成，使得节点VBOOSTA有正电压。反相器I1将控制信号CSB反相，从而提供适当的极性来控制晶体管N3。二极管D3和D4确保耦合到由晶体管N4构成的提升开关的任意一个节点的电压都至多为一个二极管的压降(例如，-0.7V)。二极管D1和D2将能量通过正脉冲传递至提供电源电压VAUX的电容C2。正电源的提供如图所示，负电源也可以通过元件极性的变化来实现。
图3A所示的内容关于图1中所采用的如图2A所示的电压提升电路12的实施例。轨迹IL描述了电感L1初级线圈的电流。控制信号CS显示了切换控制信号控制电感L1中电流方向的情形。控制信号CSA提供了三个提升脉冲，使得电源电压VAUX根据节点VBOOSTA的电压的大小在每个控制信号CSA的脉冲结束之后被同步提升。在第三个脉冲之后，电源电压VAUX已经超过过压极限Vol，激发了终止控制信号CSA脉冲的产生的过压探测器16的输出ov。以电压Vul为例，其电压值足够低，从而使得电源电压VAUX能够持续产生提升脉冲。在提升脉冲终止之后，开关式功率变换器就开始稳定工作，之后辅助电源的运转继续工作，通常不需要提升动作，除非发生了空载，以及上文提到的低压运转。在这种实施例中，主动调整发挥作用，在节点VBOOSTB和节点VBOOSTA交替提供正电压，电源电压VAUX的衰减仅仅在电感L1当前没有电流的时候发生，这时处于不连续状态(DCM)。
图2B所示为图1中的电压提升电路的另外一种实施例电压提升电路12A。在电压提升电路12A中，二极管D5串联连接到只有在二极管D5的阳极接正极时才导通的提升切换晶体管N5。控制信号CSA用来控制晶体管N5，将辅助线圈aux的漏电感，连同当控制信号CSA的脉冲信号有效时的可选提升电感L2一起短接。在每个控制信号CSA的提升脉冲的最后，所提升的通过辅助线圈aux和提升电感L2的电压VX加载到电容C3从而在节点VBOOSTC产生一个电压，从而通过二极管D1给所述的电容C2充电，这与上文中图2A的电压提升电路12相类似。图2B所示的电压提升电路12A与图2A所示的电压提升电路12相比具有使用更少的元件的优点，但是没包含图2A所示的电压提升电路12的主动调整功能，以及因此根据通过辅助线圈aux(以及通过提升电感L2)的电流的信号极性而产生的已提升的电源电压VAUX。
图3B所示的内容关于图1中所采用的如图2A所示的电压提升电路12的实施例。轨迹IL描述了电感L1初级线圈的电流。控制信号CS显示了切换控制信号控制电感L1中电流方向的情形。控制信号CSA提供了三个提升脉冲，使得电源电压VAUX根据节点VBOOSTC的电压的大小在每个控制信号CSA的脉冲结束之后被同步提升。在第三个脉冲之后，电源电压VAUX已经超过过压极限Vol，激发了终止控制信号CSA脉冲的产生的过压探测器16的输出ov。以电压Vul为例，其电压值足够低，从而使得电源电压VAUX能够持续产生提升脉冲。电源电压VAUX的波动与图2A所示的电压提升电路12相比会稍微高一些，这是因为电容C2仅在电流IL增加的时候充电，此时辅助线圈端AUX1相对于AUX2端为正电压。
上述实施例中，电感L1初级线圈相对于辅助线圈aux的匝数比要足够小，从而使得启动时，最初的脉冲迅速对电容C2进行充电之后，在每个切换周期中最大负载时辅助线圈aux中有足够的能量对电容C2进行充电。但是，这样的操作会由于电容C2在启动后产生的电压比连接到辅助电源的电路所需要的电压更高，从而明显降低整个功率变换器的效率，这会导致在C2的电压调整控制器10的驱动电路所用的电压到一个更低的值时而浪费能源。本发明的其它实施例中，可以提高电感L1的匝数比，减少启动后电容C2的电压，在启动中的一个微小的延时之后，电压提升电路会使电压提高。
图4所示的内容关于图1所示的电路中采用的如图2A所示的电压提升电路另一个实施例。图4所示内容与图3A相似，这些附图中的区别将在下文中描述。当辅助提升电路12如图4所示的方式工作时，其采用的电路也可以是如图2B所示的电压提升电路12A。与图3A中所示的工作方式相比，图4中，控制信号CSA在电源电压VAUX提升到过压极限Vol，以及终止产生控制信号CSA的脉冲之前，为几个周期的控制信号CS提供提升脉冲。在提升脉冲被终止，以及开关式功率变换器稳定工作之后，辅助电源继续工作，并仅在需要的时候提供提升动作。
本发明在相关的较佳实施例中已经被明确的描述，在没有超出本发明的描述范围，本领域技术人员能够理解前述内容以及形式上的各种变化。

Claims (24)

1.一种开关式电源电路，其特征在于，包括： 
一个感应存储元件，其将所述开关式电源电路的输入耦合连接到所述开关式电源电路的输出，并且具有一个初级线圈和一个辅助线圈； 
一个切换电路，用来控制对所述感应存储元件提供功率，该功率从连接到开关式功率电路的输入电压源提供给所述感应存储元件的初级线圈； 
一个控制电路，耦合连接到所述切换电路，用来根据所述开关式功率电路的输出端提供的反馈信号产生控制信号驱动所述切换电路； 
一个电压提升电路，具有一个耦合连接到所述感应存储元件的辅助线圈的提升输入端，所述感应存储元件至少在所述开关式功率电路启动时由提升输出提供控制电路的电源，其中电压提升电路在提升输出端提供的电压足以比所述开关式功率电路启动时提升输入端的电压更高。 
2.根据权利要求1所述的开关式电源电路，其特征在于，所述电压提升电路利用所述辅助线圈的漏电感，通过在一段时间内充分的短接辅助线圈，并在这段时间结束之后在辅助线圈的提升输出端产生一个提升过了的并且通过辅助线圈的可用电压。 
3.根据权利要求1所述的开关式电源电路，其特征在于，所述电压提升电路包括一个与所述辅助线圈串联连接的第二感应存储元件，其中所述电压提升电路通过在一段时间内充分短接串联连接的第二感应存储元件和辅助线圈，并且在这段时间结束之后，在串联连接的第二感应存储元件和辅助线圈的提升输出端，得到一个穿过所述辅助线圈的可用电压。 
4.根据权利要求1所述的开关式电源电路，其特征在于，所述电压提 升电路包括一个主动切换开关，用来根据一个提升脉冲信号提供一个穿过辅助线圈的低阻抗通路，在提升脉冲信号结束之后，所述辅助线圈的漏电感或者与所述辅助线圈串联的电感会产生一个电压，该电压足以比穿过辅助线圈的可用的开路电压更高。 
5.根据权利要求4所述的开关式电源电路，其特征在于，所述提升脉冲信号是一个多脉冲信号，并且所述开关式功率电路中切换电路的切换速率的周期数倍于该提升脉冲信号。 
6.根据权利要求5所述的开关式电源电路，其特征在于，还包括一个第一探测器，用来探测所述电压提升电路的输出值超过一个第一预定电压，并且根据所述第一探测器的输出终止所述提升脉冲信号。 
7.根据权利要求6所述的开关式电源电路，其特征在于，还包括一个第二探测器，用来探测所述电压提升电路的输出值低于一个第二预定电压，并且根据所述第二探测器的输出重新启动所述提升脉冲信号。 
8.根据权利要求1所述的开关式电源电路，其特征在于，还包括至少一个主动调整开关，用来辨别与电压提升电路输出对应的辅助线圈输出的极性，电压提升电路的提升输出能够在感应存储元件被加载或者失去加载的时候产生。 
9.根据权利要求8所述的开关式电源电路，其特征在于，至少一个主动调整开关，该开关与控制所述切换电路的控制信号协调一致。 
10.一种控制开关式功率电路的方法，其特征在于，包括： 
切换感应存储元件初级线圈的输入电压源，使功率传送到开关式功率电路的输出，其中感应存储元件具有初级线圈和辅助线圈； 
控制切换时间，使其与由开关式功率电路的输出提供的反馈信号一致； 
提升所述感应存储元件辅助线圈的电压，用来为至少在开关式功率电路的启动阶段起控制作用的控制电路提供能源，该电压的提升使得提升输出电压足以比开关式功率电路启动阶段时的辅助线圈的电压更高。 
11.根据权利要求10所述的控制开关式功率电路的方法，其特征在于，所述电压的提升包括充分短接辅助线圈在辅助线圈的漏电感中存储能量，然后终止短接从而提升辅助线圈的可用电压并且将辅助线圈接至提升输出。 
12.根据权利要求10所述的控制开关式功率电路的方法，其特征在于，所述电压的提升包括充分的短接串联连接的辅助线圈和另一个提升电感，用来在该提升电感中存储能量，然后终止短接，使辅助线圈产生一个可用电压并将辅助线圈接至提升输出。 
13.根据权利要求10所述的控制开关式功率电路的方法，其特征在于，所述电压的提升包括： 
根据提升脉冲信号主动切换通过辅助线圈的低阻抗通路； 
提升脉冲信号结束时通过辅助线圈的低阻抗通路断开，所述辅助线圈的漏电感或者与辅助线圈串联的电感产生一个足以比辅助线圈的开路可用电压更高的电压。 
14.根据权利要求13所述的控制开关式功率电路的方法，其特征在于，所述提升脉冲信号是一个多脉冲信号，并且切换的切换速率的周期数倍于该提升脉冲信号。 
15.根据权利要求14所述的控制开关式功率电路的方法，其特征在于， 还包括： 
第一探测步骤，探测所述电压提升电路的输出值超过一个第一预定电压； 
当第一探测步骤探测到电压提升电路的输出值超过所述第一预定电压时，停止提升脉冲信号的产生。 
16.根据权利要求15所述的控制开关式功率电路的方法，其特征在于，还包括： 
第二探测步骤，探测所述电压提升电路的输出值低于一个第二预定电压； 
当第二探测步骤探测到电压提升电路的输出值低于所述第二预定电压时，继续产生提升脉冲信号。 
17.根据权利要求16所述的控制开关式功率电路的方法，其特征在于，还包括主动调整辅助线圈的输出，使得当感应存储元件在加载或者失去加载的时候能产生电压提升。 
18.根据权利要求17所述的控制开关式功率电路的方法，其特征在于，主动调整根据控制切换电路的控制信号而发生。 
19.一种集成电路，其特征在于，包括：
一个切换控制电路，用来根据为所述集成电路提供的反馈信号，控制一个对穿过一个初级线圈的外部感应存储元件加载的开关；
一个电压提升电路，将输入耦合连接到一个提升输入端，使得集成电路耦合连接到外部感应存储元件的辅助线圈，所述电压提升电路至少在集 成电路启动阶段从提升输出为切换控制电路提供电源，所述电压提升电路在提升输出端提供的电压足以比集成电路启动阶段时提升输入的电压更高，所述电压提升电路包括一个主动开关，其根据提升脉冲信号提供一个穿过所述辅助线圈的低阻抗通路。
20.根据权利要求19所述的集成电路，其特征在于，所述提升脉冲信号是一个多脉冲信号，并且所述开关式功率电路中切换电路的切换速率的周期数倍于该提升脉冲信号。
21.根据权利要求20所述的集成电路，其特征在于，还包括一个第一探测器，用来探测所述电压提升电路的输出值超过一个第一预定电压，并且根据所述第一探测器的输出终止所述提升脉冲信号。
22.根据权利要求20所述的集成电路，其特征在于，还包括一个第二探测器，用来探测所述电压提升电路的输出值低于一个第二预定电压，并且根据所述第二探测器的输出重新启动所述提升脉冲信号。
23.根据权利要求19所述的集成电路，其特征在于，还包括至少一个主动调整开关，用来辨别与电压提升电路输出对应的辅助线圈输出的极性，电压提升电路的提升输出能够在感应存储元件被加载或者失去加载的时候产生。
24.根据权利要求23所述的集成电路，其特征在于，至少一个主动调整开关，该开关与控制所述切换电路的控制信号协调一致。 
CN2009100057070A 2008-01-30 2009-01-24 具有升压辅助线圈电源的开关式调节器 Active CN101630901B (zh)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US2458308P 2008-01-30 2008-01-30
US61/024,583 2008-01-30
US8371708P 2008-07-25 2008-07-25
US61/083,717 2008-07-25
US12/242,298 2008-09-20
US12/242,298 US8008898B2 (en) 2008-01-30 2008-09-30 Switching regulator with boosted auxiliary winding supply

Publications (2)

Publication Number Publication Date
CN101630901A CN101630901A (zh) 2010-01-20
CN101630901B true CN101630901B (zh) 2013-07-03

Family

ID=40899043

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009100057070A Active CN101630901B (zh) 2008-01-30 2009-01-24 具有升压辅助线圈电源的开关式调节器

Country Status (3)

Country Link
US (1) US8008898B2 (zh)
CN (1) CN101630901B (zh)
TW (1) TWI478474B (zh)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7554473B2 (en) * 2007-05-02 2009-06-30 Cirrus Logic, Inc. Control system using a nonlinear delta-sigma modulator with nonlinear process modeling
US8576589B2 (en) 2008-01-30 2013-11-05 Cirrus Logic, Inc. Switch state controller with a sense current generated operating voltage
US8222872B1 (en) * 2008-09-30 2012-07-17 Cirrus Logic, Inc. Switching power converter with selectable mode auxiliary power supply
CN101404446B (zh) * 2008-11-11 2011-02-16 珠海格力电器股份有限公司 单周期功率因数校正方法
US8198874B2 (en) * 2009-06-30 2012-06-12 Cirrus Logic, Inc. Switching power converter with current sensing transformer auxiliary power supply
US8212493B2 (en) 2009-06-30 2012-07-03 Cirrus Logic, Inc. Low energy transfer mode for auxiliary power supply operation in a cascaded switching power converter
US9178415B1 (en) 2009-10-15 2015-11-03 Cirrus Logic, Inc. Inductor over-current protection using a volt-second value representing an input voltage to a switching power converter
US8487591B1 (en) 2009-12-31 2013-07-16 Cirrus Logic, Inc. Power control system with power drop out immunity and uncompromised startup time
US8729811B2 (en) 2010-07-30 2014-05-20 Cirrus Logic, Inc. Dimming multiple lighting devices by alternating energy transfer from a magnetic storage element
US8866452B1 (en) 2010-08-11 2014-10-21 Cirrus Logic, Inc. Variable minimum input voltage based switching in an electronic power control system
US9510401B1 (en) 2010-08-24 2016-11-29 Cirrus Logic, Inc. Reduced standby power in an electronic power control system
US8908400B2 (en) * 2010-12-29 2014-12-09 National Semiconductor Corporation Voltage multiplication in a wireless receiver
US8450946B1 (en) * 2011-02-07 2013-05-28 Universal Lighting Technologies, Inc. Zone addressing circuit for an electronic ballast
CN102710157B (zh) 2011-03-28 2015-04-01 光宝电子(广州)有限公司 功率因数修正升压转换器
WO2012167161A1 (en) 2011-06-03 2012-12-06 Cirrus Logic, Inc. Primary-side control of a switching power converter with feed forward delay compensation
EP2715924A1 (en) 2011-06-03 2014-04-09 Cirrus Logic, Inc. Control data determination from primary-side sensing of a secondary-side voltage in a switching power converter
TWI458335B (zh) * 2011-10-25 2014-10-21 Himax Imaging Ltd 用以進行影像強化的影像訊號處理器以及影像處理方法
WO2013090852A2 (en) 2011-12-14 2013-06-20 Cirrus Logic, Inc. Adaptive current control timing and responsive current control for interfacing with a dimmer
CN104115558B (zh) * 2012-01-20 2016-09-21 奥斯兰姆施尔凡尼亚公司 用于ac供电电子器件的辅助电源
US8981673B2 (en) * 2012-03-12 2015-03-17 Cree, Inc. Power supply that maintains auxiliary bias within target range
CN102798756B (zh) * 2012-06-27 2016-02-24 华立科技股份有限公司 一种智能电表的电源电路及三相智能电表
US9520794B2 (en) 2012-07-25 2016-12-13 Philips Lighting Holding B.V Acceleration of output energy provision for a load during start-up of a switching power converter
EP2965592A1 (en) 2013-03-07 2016-01-13 Koninklijke Philips N.V. Utilizing secondary-side conduction time parameters of a switching power converter to provide energy to a load
WO2014186765A1 (en) 2013-05-17 2014-11-20 Cirrus Logic, Inc. Single pin control of bipolar junction transistor (bjt)-based power stage
WO2014186776A1 (en) 2013-05-17 2014-11-20 Cirrus Logic, Inc. Charge pump-based circuitry for bjt power supply
US9504106B2 (en) 2013-07-29 2016-11-22 Cirrus Logic, Inc. Compensating for a reverse recovery time period of a bipolar junction transistor (BJT) in switch-mode operation of a light-emitting diode (LED)-based bulb
WO2015017317A2 (en) 2013-07-29 2015-02-05 Cirrus Logic, Inc. Two terminal drive of bipolar junction transistor (bjt) for switch-mode operation of a light emitting diode (led)-based bulb
US9397567B2 (en) 2014-02-05 2016-07-19 Apple Inc. Shunt integrated voltage regulator
US9161401B1 (en) 2014-03-20 2015-10-13 Cirrus Logic, Inc. LED (light-emitting diode) string derived controller power supply
US9214862B2 (en) 2014-04-17 2015-12-15 Philips International, B.V. Systems and methods for valley switching in a switching power converter
US9325236B1 (en) 2014-11-12 2016-04-26 Koninklijke Philips N.V. Controlling power factor in a switching power converter operating in discontinuous conduction mode
US9504118B2 (en) 2015-02-17 2016-11-22 Cirrus Logic, Inc. Resistance measurement of a resistor in a bipolar junction transistor (BJT)-based power stage
US9609701B2 (en) 2015-02-27 2017-03-28 Cirrus Logic, Inc. Switch-mode drive sensing of reverse recovery in bipolar junction transistor (BJT)-based power converters
US9603206B2 (en) 2015-02-27 2017-03-21 Cirrus Logic, Inc. Detection and control mechanism for tail current in a bipolar junction transistor (BJT)-based power stage
FR3033956B1 (fr) * 2015-03-16 2018-05-18 Enerbee Systeme electrique a autonomie energetique accrue
CN104836421B (zh) * 2015-05-19 2017-12-05 矽力杰半导体技术(杭州)有限公司 一种开关电源的供电电路和供电方法
US10770962B2 (en) 2016-04-08 2020-09-08 Abb Schweiz Ag Converter cell comprising an energy converter in parallel to a clamp inductor
CN107769564B (zh) * 2016-08-18 2023-07-07 深圳市力生美半导体股份有限公司 开关电源及开关电源中pwm芯片的供电芯片和方法
DE102017220663A1 (de) * 2017-11-20 2019-05-23 Osram Gmbh Hilfsspannungsversorgung
US10396677B2 (en) 2018-01-17 2019-08-27 Nxp B.V. Forward fed boost converter for flyback switched mode power supply and method thereof
US11507119B2 (en) * 2018-08-13 2022-11-22 Avago Technologies International Sales Pte. Limited Method and apparatus for integrated battery supply regulation and transient suppression
US11271483B2 (en) 2018-10-17 2022-03-08 Texas Instruments Incorporated Bias power regulator circuit for isolated converters with a wide output voltage range
US11409312B1 (en) * 2019-04-24 2022-08-09 Renesas Electronics America Inc. Non-linear load line for a multiphase voltage regulator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1387305A (zh) * 2002-06-15 2002-12-25 艾默生网络能源有限公司 含有辅助电源的开关电源电路及其驱动方法

Family Cites Families (218)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3316495A (en) 1964-07-06 1967-04-25 Cons Systems Corp Low-level commutator with means for providing common mode rejection
US3423689A (en) 1965-08-19 1969-01-21 Hewlett Packard Co Direct current amplifier
US3586988A (en) 1967-12-01 1971-06-22 Newport Lab Direct coupled differential amplifier
US3725804A (en) 1971-11-26 1973-04-03 Avco Corp Capacitance compensation circuit for differential amplifier
US3790878A (en) 1971-12-22 1974-02-05 Keithley Instruments Switching regulator having improved control circuiting
US3881167A (en) 1973-07-05 1975-04-29 Pelton Company Inc Method and apparatus to maintain constant phase between reference and output signals
US4075701A (en) 1975-02-12 1978-02-21 Messerschmitt-Bolkow-Blohm Gesellschaft Mit Beschrankter Haftung Method and circuit arrangement for adapting the measuring range of a measuring device operating with delta modulation in a navigation system
US4334250A (en) 1978-03-16 1982-06-08 Tektronix, Inc. MFM data encoder with write precompensation
US4337441A (en) 1980-02-11 1982-06-29 Tektronix, Inc. Supply-voltage driver for a differential amplifier
US4414493A (en) 1981-10-06 1983-11-08 Thomas Industries Inc. Light dimmer for solid state ballast
US4476706A (en) 1982-01-18 1984-10-16 Delphian Partners Remote calibration system
JPS6150546A (ja) 1984-08-20 1986-03-12 富士写真光機株式会社 内視鏡
US4700188A (en) 1985-01-29 1987-10-13 Micronic Interface Technologies Electric power measurement system and hall effect based electric power meter for use therein
DE3528046A1 (de) 1985-08-05 1987-02-05 Bbc Brown Boveri & Cie Rundsteuerempfaenger
US4677366A (en) 1986-05-12 1987-06-30 Pioneer Research, Inc. Unity power factor power supply
US4683529A (en) 1986-11-12 1987-07-28 Zytec Corporation Switching power supply with automatic power factor correction
US4797633A (en) 1987-03-20 1989-01-10 Video Sound, Inc. Audio amplifier
US4994952A (en) 1988-02-10 1991-02-19 Electronics Research Group, Inc. Low-noise switching power supply having variable reluctance transformer
GB8817684D0 (en) 1988-07-25 1988-09-01 Astec Int Ltd Power factor improvement
GB8821130D0 (en) 1988-09-09 1988-10-12 Ml Aviation Co Ltd Inductive coupler
US4941078A (en) 1989-03-07 1990-07-10 Rca Licensing Corporation Synchronized switch-mode power supply
US4973919A (en) 1989-03-23 1990-11-27 Doble Engineering Company Amplifying with directly coupled, cascaded amplifiers
US4940929A (en) 1989-06-23 1990-07-10 Apollo Computer, Inc. AC to DC converter with unity power factor
US4980898A (en) 1989-08-08 1990-12-25 Siemens-Pacesetter, Inc. Self-oscillating burst mode transmitter with integral number of periods
US5109185A (en) 1989-09-29 1992-04-28 Ball Newton E Phase-controlled reversible power converter presenting a controllable counter emf to a source of an impressed voltage
US4992919A (en) 1989-12-29 1991-02-12 Lee Chu Quon Parallel resonant converter with zero voltage switching
US5278490A (en) 1990-09-04 1994-01-11 California Institute Of Technology One-cycle controlled switching circuit
US5121079A (en) 1991-02-12 1992-06-09 Dargatz Marvin R Driven-common electronic amplifier
US5477481A (en) 1991-02-15 1995-12-19 Crystal Semiconductor Corporation Switched-capacitor integrator with chopper stabilization performed at the sampling rate
US5206540A (en) 1991-05-09 1993-04-27 Unitrode Corporation Transformer isolated drive circuit
FI90605C (fi) 1991-12-09 1994-02-25 Abb Stroemberg Drives Oy Puolijohdekytkimen ohjauspiiri
EP0580923B1 (en) * 1992-07-30 1997-10-15 STMicroelectronics S.r.l. Device comprising an error amplifier, a control portion and a circuit for detecting voltage variations in relation to a set value
US5264780A (en) 1992-08-10 1993-11-23 International Business Machines Corporation On time control and gain circuit
US5359180A (en) 1992-10-02 1994-10-25 General Electric Company Power supply system for arcjet thrusters
JPH06209569A (ja) * 1993-01-05 1994-07-26 Yokogawa Electric Corp スイッチング電源装置
US5323157A (en) 1993-01-15 1994-06-21 Motorola, Inc. Sigma-delta digital-to-analog converter with reduced noise
US5481178A (en) 1993-03-23 1996-01-02 Linear Technology Corporation Control circuit and method for maintaining high efficiency over broad current ranges in a switching regulator circuit
US5638265A (en) 1993-08-24 1997-06-10 Gabor; George Low line harmonic AC to DC power supply
US5383109A (en) 1993-12-10 1995-01-17 University Of Colorado High power factor boost rectifier apparatus
US5479333A (en) * 1994-04-25 1995-12-26 Chrysler Corporation Power supply start up booster circuit
US5565761A (en) 1994-09-02 1996-10-15 Micro Linear Corp Synchronous switching cascade connected offline PFC-PWM combination power converter controller
JP2730506B2 (ja) 1995-02-27 1998-03-25 日本電気株式会社 圧電トランスを用いたｄｃ／ｄｃコンバータ
US5747977A (en) 1995-03-30 1998-05-05 Micro Linear Corporation Switching regulator having low power mode responsive to load power consumption
US5834858A (en) 1995-04-05 1998-11-10 Electronic Design & Manufacturing Inc. Emergency power supply
JPH09140145A (ja) 1995-11-15 1997-05-27 Samsung Electron Co Ltd 力率補償回路を備えた昇圧型コンバータ
GB2307802B (en) 1995-12-01 2000-06-07 Ibm Power supply with power factor correction circuit
KR0154776B1 (ko) * 1995-12-28 1998-12-15 김광호 역률 보상 회로
US6072969A (en) 1996-03-05 2000-06-06 Canon Kabushiki Kaisha Developing cartridge
US5798635A (en) * 1996-06-20 1998-08-25 Micro Linear Corporation One pin error amplifier and switched soft-start for an eight pin PFC-PWM combination integrated circuit converter controller
US5781040A (en) 1996-10-31 1998-07-14 Hewlett-Packard Company Transformer isolated driver for power transistor using frequency switching as the control signal
US5783909A (en) 1997-01-10 1998-07-21 Relume Corporation Maintaining LED luminous intensity
US6084450A (en) 1997-01-14 2000-07-04 The Regents Of The University Of California PWM controller with one cycle response
US5960207A (en) 1997-01-21 1999-09-28 Dell Usa, L.P. System and method for reducing power losses by gating an active power factor conversion process
US5793625A (en) 1997-01-24 1998-08-11 Baker Hughes Incorporated Boost converter regulated alternator
JP3644615B2 (ja) 1997-02-17 2005-05-11 Ｔｄｋ株式会社 スイッチング電源
US5952849A (en) 1997-02-21 1999-09-14 Analog Devices, Inc. Logic isolator with high transient immunity
US6442213B1 (en) 1997-04-22 2002-08-27 Silicon Laboratories Inc. Digital isolation system with hybrid circuit in ADC calibration loop
US6211627B1 (en) 1997-07-29 2001-04-03 Michael Callahan Lighting systems
US5963086A (en) 1997-08-08 1999-10-05 Velodyne Acoustics, Inc. Class D amplifier with switching control
US6975079B2 (en) 1997-08-26 2005-12-13 Color Kinetics Incorporated Systems and methods for controlling illumination sources
US6211626B1 (en) 1997-08-26 2001-04-03 Color Kinetics, Incorporated Illumination components
US6016038A (en) 1997-08-26 2000-01-18 Color Kinetics, Inc. Multicolored LED lighting method and apparatus
US7064498B2 (en) 1997-08-26 2006-06-20 Color Kinetics Incorporated Light-emitting diode based products
US7014336B1 (en) 1999-11-18 2006-03-21 Color Kinetics Incorporated Systems and methods for generating and modulating illumination conditions
US6967448B2 (en) 1997-08-26 2005-11-22 Color Kinetics, Incorporated Methods and apparatus for controlling illumination
US6806659B1 (en) 1997-08-26 2004-10-19 Color Kinetics, Incorporated Multicolored LED lighting method and apparatus
US6888322B2 (en) 1997-08-26 2005-05-03 Color Kinetics Incorporated Systems and methods for color changing device and enclosure
JPH1172515A (ja) 1997-08-28 1999-03-16 Iwatsu Electric Co Ltd 広帯域アナログ絶縁回路
US6873065B2 (en) 1997-10-23 2005-03-29 Analog Devices, Inc. Non-optical signal isolator
US5929400A (en) 1997-12-22 1999-07-27 Otis Elevator Company Self commissioning controller for field-oriented elevator motor/drive system
US5900683A (en) 1997-12-23 1999-05-04 Ford Global Technologies, Inc. Isolated gate driver for power switching device and method for carrying out same
US6509913B2 (en) 1998-04-30 2003-01-21 Openwave Systems Inc. Configurable man-machine interface
US6043633A (en) 1998-06-05 2000-03-28 Systel Development & Industries Power factor correction method and apparatus
US6083276A (en) 1998-06-11 2000-07-04 Corel, Inc. Creating and configuring component-based applications using a text-based descriptive attribute grammar
DE19827755A1 (de) 1998-06-23 2000-03-02 Siemens Ag Hybridfilter für ein Wechselspannungsnetz
IL125328A0 (en) 1998-07-13 1999-03-12 Univ Ben Gurion Modular apparatus for regulating the harmonics of current drawn from power lines
US6140777A (en) 1998-07-29 2000-10-31 Philips Electronics North America Corporation Preconditioner having a digital power factor controller
DE69833635T2 (de) 1998-12-14 2007-01-18 Alcatel Verstärkungsanordnung mit Spannungsverstärkung und reduziertem Leistungsverbrauch
US6495964B1 (en) 1998-12-18 2002-12-17 Koninklijke Philips Electronics N.V. LED luminaire with electrically adjusted color balance using photodetector
US6064187A (en) 1999-02-12 2000-05-16 Analog Devices, Inc. Voltage regulator compensation circuit and method
WO2000055966A1 (en) 1999-03-16 2000-09-21 Audiologic, Incorporated Power supply compensation for noise shaped, digital amplifiers
DE10032846A1 (de) 1999-07-12 2001-01-25 Int Rectifier Corp Leistungsfaktor-Korrektursteuerschaltung
US6181114B1 (en) * 1999-10-26 2001-01-30 International Business Machines Corporation Boost circuit which includes an additional winding for providing an auxiliary output voltage
US7158633B1 (en) 1999-11-16 2007-01-02 Silicon Laboratories, Inc. Method and apparatus for monitoring subscriber loop interface circuitry power dissipation
US8085943B2 (en) 1999-11-29 2011-12-27 Bizjak Karl M Noise extractor system and method
US6229271B1 (en) 2000-02-24 2001-05-08 Osram Sylvania Inc. Low distortion line dimmer and dimming ballast
US6246183B1 (en) 2000-02-28 2001-06-12 Litton Systems, Inc. Dimmable electrodeless light source
US6636107B2 (en) 2000-03-28 2003-10-21 International Rectifier Corporation Active filter for reduction of common mode current
US6970503B1 (en) 2000-04-21 2005-11-29 National Semiconductor Corporation Apparatus and method for converting analog signal to pulse-width-modulated signal
US6693571B2 (en) 2000-05-10 2004-02-17 Cirrus Logic, Inc. Modulation of a digital input signal using a digital signal modulator and signal splitting
US6304473B1 (en) 2000-06-02 2001-10-16 Iwatt Operating a power converter at optimal efficiency
US6882552B2 (en) 2000-06-02 2005-04-19 Iwatt, Inc. Power converter driven by power pulse and sense pulse
EP1164819B1 (en) 2000-06-15 2004-02-11 City University of Hong Kong Dimmable electronic ballast
US6636003B2 (en) 2000-09-06 2003-10-21 Spectrum Kinetics Apparatus and method for adjusting the color temperature of white semiconduct or light emitters
US6407691B1 (en) 2000-10-18 2002-06-18 Cirrus Logic, Inc. Providing power, clock, and control signals as a single combined signal across an isolation barrier in an ADC
FR2815790B1 (fr) 2000-10-24 2003-02-07 St Microelectronics Sa Convertisseur de tension a circuit de commande autooscillant
US6583550B2 (en) 2000-10-24 2003-06-24 Toyoda Gosei Co., Ltd. Fluorescent tube with light emitting diodes
US6343026B1 (en) 2000-11-09 2002-01-29 Artesyn Technologies, Inc. Current limit circuit for interleaved converters
JP3371962B2 (ja) 2000-12-04 2003-01-27 サンケン電気株式会社 Ｄｃ−ｄｃコンバ−タ
DE10061563B4 (de) 2000-12-06 2005-12-08 RUBITEC Gesellschaft für Innovation und Technologie der Ruhr-Universität Bochum mbH Verfahren und Vorrichtung zum Ein- und Ausschalten von Leistungshalbleitern, insbesondere für ein drehzahlvariables Betreiben einer Asynchronmaschine, ein Betreiben einer Zündschaltung für Ottomotoren, sowie Schaltnetzteil
US6441558B1 (en) 2000-12-07 2002-08-27 Koninklijke Philips Electronics N.V. White LED luminary light control system
EP1215808B1 (en) 2000-12-13 2011-05-11 Semiconductor Components Industries, LLC A power supply circuit and method thereof to detect demagnitization of the power supply
EP1229634B1 (en) 2001-01-31 2006-03-29 Matsushita Electric Industrial Co., Ltd. Switching power supply apparatus
KR20020091173A (ko) 2001-02-02 2002-12-05 코닌클리즈케 필립스 일렉트로닉스 엔.브이. 일체형 광원
EP1239575A3 (en) 2001-03-08 2003-11-05 Shindengen Electric Manufacturing Company, Limited DC stabilised power supply
US6452521B1 (en) 2001-03-14 2002-09-17 Rosemount Inc. Mapping a delta-sigma converter range to a sensor range
US6510995B2 (en) 2001-03-16 2003-01-28 Koninklijke Philips Electronics N.V. RGB LED based light driver using microprocessor controlled AC distributed power system
US6917504B2 (en) 2001-05-02 2005-07-12 Supertex, Inc. Apparatus and method for adaptively controlling power supplied to a hot-pluggable subsystem
US6737845B2 (en) 2001-06-21 2004-05-18 Champion Microelectronic Corp. Current inrush limiting and bleed resistor current inhibiting in a switching power converter
US6628106B1 (en) * 2001-07-30 2003-09-30 University Of Central Florida Control method and circuit to provide voltage and current regulation for multiphase DC/DC converters
IL147578A (en) 2002-01-10 2006-06-11 Lightech Electronics Ind Ltd Lamp transformer for use with an electronic dimmer and method for use thereof for reducing acoustic noise
CA2471231A1 (en) 2002-01-11 2003-07-17 Precisionh2 Inc. Power factor controller
JP4013898B2 (ja) * 2002-02-08 2007-11-28 サンケン電気株式会社 電源装置起動方法、電源装置の起動回路及び電源装置
GB0204212D0 (en) 2002-02-22 2002-04-10 Oxley Dev Co Ltd Led drive circuit
SE0201432D0 (sv) 2002-04-29 2002-05-13 Emerson Energy Systems Ab A Power supply system and apparatus
US7358679B2 (en) 2002-05-09 2008-04-15 Philips Solid-State Lighting Solutions, Inc. Dimmable LED-based MR16 lighting apparatus and methods
KR100985026B1 (ko) 2002-05-28 2010-10-04 코닌클리케 필립스 일렉트로닉스 엔.브이. 영상의 모션 블러, 플리커 및 밝기 손실을 감소시키기 위한 방법, 비-스트로보스코픽 디스플레이 디바이스
JP4175027B2 (ja) 2002-05-28 2008-11-05 松下電工株式会社 放電灯点灯装置
US6728121B2 (en) 2002-05-31 2004-04-27 Green Power Technologies Ltd. Method and apparatus for active power factor correction with minimum input current distortion
EP1367703A1 (en) 2002-05-31 2003-12-03 STMicroelectronics S.r.l. Method of regulation of the supply voltage of a load and relative voltage regulator
US6753661B2 (en) 2002-06-17 2004-06-22 Koninklijke Philips Electronics N.V. LED-based white-light backlighting for electronic displays
WO2004001942A1 (en) 2002-06-23 2003-12-31 Powerlynx A/S Power converter
US6756772B2 (en) * 2002-07-08 2004-06-29 Cogency Semiconductor Inc. Dual-output direct current voltage converter
US6860628B2 (en) 2002-07-17 2005-03-01 Jonas J. Robertson LED replacement for fluorescent lighting
US6781351B2 (en) 2002-08-17 2004-08-24 Supertex Inc. AC/DC cascaded power converters having high DC conversion ratio and improved AC line harmonics
US6940733B2 (en) 2002-08-22 2005-09-06 Supertex, Inc. Optimal control of wide conversion ratio switching converters
US6724174B1 (en) 2002-09-12 2004-04-20 Linear Technology Corp. Adjustable minimum peak inductor current level for burst mode in current-mode DC-DC regulators
KR100470599B1 (ko) * 2002-10-16 2005-03-10 삼성전자주식회사 전자기기의 회로를 보호할 수 있는 전원공급장치
US6744223B2 (en) 2002-10-30 2004-06-01 Quebec, Inc. Multicolor lamp system
US6727832B1 (en) 2002-11-27 2004-04-27 Cirrus Logic, Inc. Data converters with digitally filtered pulse width modulation output stages and methods and systems using the same
US6741123B1 (en) 2002-12-26 2004-05-25 Cirrus Logic, Inc. Delta-sigma amplifiers with output stage supply voltage variation compensation and methods and digital amplifier systems using the same
US6768655B1 (en) 2003-02-03 2004-07-27 System General Corp. Discontinuous mode PFC controller having a power saving modulator and operation method thereof
JP3947720B2 (ja) 2003-02-28 2007-07-25 日本放送協会 白熱灯用調光制御照明装置の使用方法
JP4082672B2 (ja) 2003-03-06 2008-04-30 株式会社デンソー 電気絶縁型スイッチング素子駆動回路
US7078963B1 (en) 2003-03-21 2006-07-18 D2Audio Corporation Integrated PULSHI mode with shutdown
JP2004320858A (ja) * 2003-04-14 2004-11-11 Cosel Co Ltd スイッチング電源装置
US7075329B2 (en) 2003-04-30 2006-07-11 Analog Devices, Inc. Signal isolators using micro-transformers
US7126288B2 (en) 2003-05-05 2006-10-24 International Rectifier Corporation Digital electronic ballast control apparatus and method
JP4072765B2 (ja) 2003-05-12 2008-04-09 日本ビクター株式会社 電力増幅回路
US7001036B2 (en) 2003-05-13 2006-02-21 Universal Plastics Products, Inc. Electroluminescent illumination for a magnetic compass
US6956750B1 (en) 2003-05-16 2005-10-18 Iwatt Inc. Power converter controller having event generator for detection of events and generation of digital error
WO2004112371A1 (en) 2003-05-29 2004-12-23 Tdk Semiconductor Corporation A method and apparatus for full duplex signaling across a pulse transformer
US6944034B1 (en) 2003-06-30 2005-09-13 Iwatt Inc. System and method for input current shaping in a power converter
JP4340288B2 (ja) 2003-07-02 2009-10-07 エス．シー． ジョンソン アンド サン、インコーポレイテッド 電球
EP2806531B1 (en) * 2003-07-07 2019-10-23 Nippon Telegraph And Telephone Corporation Booster
US6839247B1 (en) 2003-07-10 2005-01-04 System General Corp. PFC-PWM controller having a power saving means
US6933706B2 (en) 2003-09-15 2005-08-23 Semiconductor Components Industries, Llc Method and circuit for optimizing power efficiency in a DC-DC converter
JP4107209B2 (ja) 2003-09-29 2008-06-25 株式会社村田製作所 リップルコンバータ
US6958920B2 (en) 2003-10-02 2005-10-25 Supertex, Inc. Switching power converter and method of controlling output voltage thereof using predictive sensing of magnetic flux
ITMI20031987A1 (it) 2003-10-14 2005-04-15 Archimede Elettronica S R L Dispositivo e metodo per il controllo del colore di una sorgente di illuminazione
ATE542176T1 (de) 2003-10-16 2012-02-15 Canon Kk Betriebsschaltung und betriebssteuerverfahren dafür
US7009543B2 (en) 2004-01-16 2006-03-07 Cirrus Logic, Inc. Multiple non-monotonic quantizer regions for noise shaping
US7034611B2 (en) 2004-02-09 2006-04-25 Texas Instruments Inc. Multistage common mode feedback for improved linearity line drivers
US7142142B2 (en) 2004-02-25 2006-11-28 Nelicor Puritan Bennett, Inc. Multi-bit ADC with sigma-delta modulation
ZA200607295B (en) 2004-03-03 2008-05-28 Johnson & Son Inc S C Led light bulb with active ingredient emission
WO2005089309A2 (en) 2004-03-15 2005-09-29 Color Kinetics Incorporated Power control methods and apparatus
US7569996B2 (en) 2004-03-19 2009-08-04 Fred H Holmes Omni voltage direct current power supply
US7266001B1 (en) 2004-03-19 2007-09-04 Marvell International Ltd. Method and apparatus for controlling power factor correction
US6977827B2 (en) 2004-03-22 2005-12-20 American Superconductor Corporation Power system having a phase locked loop with a notch filter
US7317625B2 (en) 2004-06-04 2008-01-08 Iwatt Inc. Parallel current mode control using a direct duty cycle algorithm with low computational requirements to perform power factor correction
US7259524B2 (en) 2004-06-10 2007-08-21 Lutron Electronics Co., Inc. Apparatus and methods for regulating delivery of electrical energy
EP1608206B1 (en) 2004-06-14 2009-08-12 STMicroelectronics S.r.l. Led driving device with variable light intensity
US7109791B1 (en) 2004-07-09 2006-09-19 Rf Micro Devices, Inc. Tailored collector voltage to minimize variation in AM to PM distortion in a power amplifier
US7088059B2 (en) 2004-07-21 2006-08-08 Boca Flasher Modulated control circuit and method for current-limited dimming and color mixing of display and illumination systems
JP4081462B2 (ja) 2004-08-02 2008-04-23 沖電気工業株式会社 表示パネルの色合い調整回路
JP2006067730A (ja) 2004-08-27 2006-03-09 Sanken Electric Co Ltd 力率改善回路
US7276861B1 (en) 2004-09-21 2007-10-02 Exclara, Inc. System and method for driving LED
US7292013B1 (en) 2004-09-24 2007-11-06 Marvell International Ltd. Circuits, systems, methods, and software for power factor correction and/or control
CA2521973C (en) 2004-09-29 2013-12-10 Tir Systems Ltd. System and method for controlling luminaires
US20060125420A1 (en) 2004-12-06 2006-06-15 Michael Boone Candle emulation device
GB2421367B (en) 2004-12-20 2008-09-03 Stephen Bryce Hayes Lighting apparatus and method
US7221130B2 (en) 2005-01-05 2007-05-22 Fyrestorm, Inc. Switching power converter employing pulse frequency modulation control
US7102902B1 (en) 2005-02-17 2006-09-05 Ledtronics, Inc. Dimmer circuit for LED
EP1880585A1 (en) 2005-03-03 2008-01-23 Tir Systems Ltd. Method and apparatus for controlling thermal stress in lighting devices
US7378805B2 (en) 2005-03-22 2008-05-27 Fairchild Semiconductor Corporation Single-stage digital power converter for driving LEDs
US7064531B1 (en) 2005-03-31 2006-06-20 Micrel, Inc. PWM buck regulator with LDO standby mode
US7375476B2 (en) 2005-04-08 2008-05-20 S.C. Johnson & Son, Inc. Lighting device having a circuit including a plurality of light emitting diodes, and methods of controlling and calibrating lighting devices
KR100587022B1 (ko) 2005-05-18 2006-06-08 삼성전기주식회사 디밍 회로를 갖는 ｌｅｄ 구동회로
US7331226B2 (en) 2005-05-20 2008-02-19 Powergrid Fitness, Inc. Force measurement system for an isometric exercise device
DE102006022845B4 (de) 2005-05-23 2016-01-07 Infineon Technologies Ag Ansteuerschaltung für eine Schaltereinheit einer getakteten Leistungsversorgungsschaltung und Resonanzkonverter
US7106603B1 (en) 2005-05-23 2006-09-12 Li Shin International Enterprise Corporation Switch-mode self-coupling auxiliary power device
US7388764B2 (en) 2005-06-16 2008-06-17 Active-Semi International, Inc. Primary side constant output current controller
US7145295B1 (en) 2005-07-24 2006-12-05 Aimtron Technology Corp. Dimming control circuit for light-emitting diodes
US7888881B2 (en) 2005-07-28 2011-02-15 Exclara, Inc. Pulsed current averaging controller with amplitude modulation and time division multiplexing for arrays of independent pluralities of light emitting diodes
TWI277225B (en) 2005-08-03 2007-03-21 Beyond Innovation Tech Co Ltd Apparatus of light source and adjustable control circuit for LEDs
US20070040516A1 (en) * 2005-08-15 2007-02-22 Liang Chen AC to DC power supply with PFC for lamp
CA2619613C (en) 2005-08-17 2015-02-10 Tir Technology Lp Digitally controlled luminaire system
US7249865B2 (en) 2005-09-07 2007-07-31 Plastic Inventions And Patents Combination fluorescent and LED lighting system
JP2007082324A (ja) 2005-09-14 2007-03-29 Matsushita Electric Ind Co Ltd 電源装置とその制御方法及び前記電源装置を用いた電子機器
US7619447B2 (en) 2005-09-27 2009-11-17 Marvell World Trade Ltd. High voltage high side transistor driver
KR101373956B1 (ko) 2005-11-11 2014-03-12 엘앤드엘 엔지니어링 엘엘씨 스위칭 파워 서플라이용 제어기, 그 제어기를 포함하는 시스템 및 스위칭 파워 서플라이 제어방법
US7856566B2 (en) 2005-11-29 2010-12-21 Power Integrations, Inc. Standby arrangement for power supplies
US7183957B1 (en) 2005-12-30 2007-02-27 Cirrus Logic, Inc. Signal processing system with analog-to-digital converter using delta-sigma modulation having an internal stabilizer loop
US7656103B2 (en) 2006-01-20 2010-02-02 Exclara, Inc. Impedance matching circuit for current regulation of solid state lighting
US7310244B2 (en) 2006-01-25 2007-12-18 System General Corp. Primary side controlled switching regulator
KR100755624B1 (ko) 2006-02-09 2007-09-04 삼성전기주식회사 필드 순차 칼라 모드의 액정 표시 장치
PT1984667T (pt) 2006-02-10 2018-01-03 Philips Lighting North America Corp Métodos e aparelho para fornecimento controlado de potência com fator de potência elevado utilizando uma única etapa de comutação por carga
JP2007256308A (ja) 2006-03-20 2007-10-04 Ricoh Co Ltd 回転装置、回転制御方法及び画像形成装置
US7289054B1 (en) 2006-06-13 2007-10-30 Toyota Jidosha Kabushiki Kaisha Parallel oversampling algorithmic A/D converter and method of using the same
CN101127495B (zh) 2006-08-16 2010-04-21 昂宝电子（上海）有限公司 用于为开关式电源提供控制的系统和方法
US7733034B2 (en) 2006-09-01 2010-06-08 Broadcom Corporation Single inductor serial-parallel LED driver
US7864546B2 (en) 2007-02-13 2011-01-04 Akros Silicon Inc. DC-DC converter with communication across an isolation pathway
US7675759B2 (en) 2006-12-01 2010-03-09 Flextronics International Usa, Inc. Power system with power converters having an adaptive controller
US7667986B2 (en) 2006-12-01 2010-02-23 Flextronics International Usa, Inc. Power system with power converters having an adaptive controller
KR101357006B1 (ko) 2007-01-18 2014-01-29 페어차일드코리아반도체 주식회사 컨버터 및 그 구동 방법
US8362838B2 (en) 2007-01-19 2013-01-29 Cirrus Logic, Inc. Multi-stage amplifier with multiple sets of fixed and variable voltage rails
US7852017B1 (en) 2007-03-12 2010-12-14 Cirrus Logic, Inc. Ballast for light emitting diode light sources
US7288902B1 (en) 2007-03-12 2007-10-30 Cirrus Logic, Inc. Color variations in a dimmable lighting device with stable color temperature light sources
US7560677B2 (en) 2007-03-13 2009-07-14 Renaissance Lighting, Inc. Step-wise intensity control of a solid state lighting system
GB2447873B (en) 2007-03-30 2009-07-29 Cambridge Semiconductor Ltd Forward power converter controllers
US7480159B2 (en) 2007-04-19 2009-01-20 Leadtrend Technology Corp. Switching-mode power converter and pulse-width-modulation control circuit with primary-side feedback control
US7554473B2 (en) 2007-05-02 2009-06-30 Cirrus Logic, Inc. Control system using a nonlinear delta-sigma modulator with nonlinear process modeling
US7974109B2 (en) 2007-05-07 2011-07-05 Iwatt Inc. Digital compensation for cable drop in a primary side control power supply controller
US7821333B2 (en) 2008-01-04 2010-10-26 Texas Instruments Incorporated High-voltage differential amplifier and method using low voltage amplifier and dynamic voltage selection
US7755525B2 (en) 2008-01-30 2010-07-13 Cirrus Logic, Inc. Delta sigma modulator with unavailable output values
US8022683B2 (en) 2008-01-30 2011-09-20 Cirrus Logic, Inc. Powering a power supply integrated circuit with sense current
US7750738B2 (en) 2008-11-20 2010-07-06 Infineon Technologies Ag Process, voltage and temperature control for high-speed, low-power fixed and variable gain amplifiers based on MOSFET resistors
US7994863B2 (en) 2008-12-31 2011-08-09 Cirrus Logic, Inc. Electronic system having common mode voltage range enhancement

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1387305A (zh) * 2002-06-15 2002-12-25 艾默生网络能源有限公司 含有辅助电源的开关电源电路及其驱动方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开2004-320858A 2004.11.11

Also Published As

Publication number Publication date
US20090190379A1 (en) 2009-07-30
TWI478474B (zh) 2015-03-21
US8008898B2 (en) 2011-08-30
TW200945746A (en) 2009-11-01
CN101630901A (zh) 2010-01-20

Similar Documents

Publication Publication Date Title
CN101630901B (zh) 具有升压辅助线圈电源的开关式调节器
KR100912865B1 (ko) 스위칭 레귤레이터 및 그 스위칭 레귤레이터를 구비하는반도체 장치
CN102484423B (zh) 电荷泵电路和其操作控制方法
US8786314B2 (en) Contactless power transfer system and control method thereof
CN100474752C (zh) 用于控制开关电源的半导体装置
CN101989810B (zh) 用于实现功率转换器输入端电压放电电路的方法和装置
CN101796708B (zh) 具有同步续流mosfet的增压和上下开关调节器
US10141863B2 (en) Power conversion apparatus
CN109088544A (zh) 开关电源装置
CN101640485B (zh) 开关电源装置
CN109247081A (zh) 半桥谐振转换器、使用它们的电路、以及对应的控制方法
US8488346B2 (en) Power conversion apparatus and method
CN102356538B (zh) 半导体装置和控制其工作的方法
JPWO2014103105A1 (ja) Ｄｃ／ｄｃコンバータ
CN104980050A (zh) 用于开关模式电源的系统和方法
US8824180B2 (en) Power conversion apparatus
CN102265492A (zh) 具有扩展保持时间的开关电能转换器
US7002323B2 (en) Switching power supply circuit capable of reducing switching loss and control method used therein
CN107834857A (zh) 电源控制装置及绝缘型开关电源装置
CA2616728C (en) Step-down voltage converter
CN112653324B (zh) 一种无直接供电的升压转换器系统
US20090051221A1 (en) Direct current voltage conversion circuit
CN104467431B (zh) 动态频率调节电源控制装置
CN1625034B (zh) 同步整流型开关调节控制电路
CN101878675B (zh) 尤其用于led的带电气隔离pfc功能的发光器件控制装置

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
CI01 Correction of invention patent gazette

Correction item: Priority day

Correct: 20080930

False: 20080920

Number: 03

Volume: 26

CI02 Correction of invention patent application

Correction item: Priority day

Correct: 20080930

False: 20080920

Number: 03

Page: The title page

Volume: 26

ERR Gazette correction

Free format text: CORRECT: DATE OF PRIORITY; FROM: 2008.09.20 TO: 2008.09.30

C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant