CN103904703B - Charging device power supply capacity method of discrimination - Google Patents
Charging device power supply capacity method of discrimination Download PDFInfo
- Publication number
- CN103904703B CN103904703B CN201210572222.1A CN201210572222A CN103904703B CN 103904703 B CN103904703 B CN 103904703B CN 201210572222 A CN201210572222 A CN 201210572222A CN 103904703 B CN103904703 B CN 103904703B
- Authority
- CN
- China
- Prior art keywords
- power supply
- charging device
- data pin
- supply capacity
- voltage
- 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.)
- Expired - Fee Related
Links
Abstract
The present invention is a kind of charging device power supply capacity method of discrimination, comprising: connected charging device by charging device via connecting interface; Power supply judgment controller differentiates whether the correction data pin of connecting interface and negative data pin are high impedance; If high impedance, then charging device has the first power supply capacity; If not high impedance, then differentiate whether positive and negative data pins is short circuit; If short circuit, then charging device has the second power supply capacity; If not short circuit, then differentiate whether positive and negative data pins is the first voltage; If the first voltage, then charging device has the 3rd power supply capacity; If not the first voltage, then differentiate whether positive and negative data pins is respectively the second voltage and tertiary voltage; And if be the second voltage and tertiary voltage respectively, then charging device has the 4th power supply capacity.
Description
Technical field
The invention relates to a kind of charging device power supply capacity method of discrimination, especially via the voltage swing of correction data pin and negative data pin to obtain the big current power supply capacity of charging device.
Background technology
Because portable electronic product is day by day universal, and power supply is generally use built-in battery, comprises primary cell and secondary cell, especially under the environmental protection agitation of carbon reduction, have can repeatedly charging cycle use secondary cell, such as lithium battery, general gradually.But, be limited to the capacity of battery own, the rechargeable battery of such as mobile phone, user needs often charging to maintain normal operation with supplementary electric power, but often can not find power supply and can charge at any time, causes inconvenience very large on using.
In addition, general electronic product uses USB (UniversalSerialBus, USB) to be used as charging inlet, and the supply power voltage of USB is 5V, and maximum only have 500mA for induced current.
But, the shortcoming of prior art is that charging current more hour, the required charging interval is just longer, otherwise charging current is higher, then the charging interval is just shorter, and the 500mA maximum current of USB is quite low for general electronic products, so usually need the charging interval grown very much, such as one day or a couple of days, cause the inconvenience in use.But being limited to existing specification, even if charging device itself has larger electric current deliverability, also the information of big current power supply capacity cannot being provided to be sent to by charging device by having.
Therefore, need a kind of charging device power supply capacity method of discrimination, utilize the correction data pin of connecting interface and the voltage swing of negative data pin and obtain the power supply capacity of charging device, being especially greater than the power supply capacity of 500mA, and then solving the problem of above-mentioned prior art.
Summary of the invention
Main purpose of the present invention is to provide a kind of charging device power supply capacity method of discrimination, comprising: be connected to charging device by charging device via connecting interface; After presetting the stand-by period, differentiate whether the correction data pin of connecting interface and negative data pin are high impedance by power supply judgment controller; If high impedance, then there is the first power supply capacity; If not high impedance, then differentiate whether correction data pin and negative data pin are short circuit; If short circuit, then there is the second power supply capacity; If not short circuit, then differentiate whether correction data pin and negative data pin are the first voltage; If the first voltage, then there is the 3rd power supply capacity; If not the first voltage, then differentiate whether correction data pin and negative data pin are respectively the second voltage and tertiary voltage; And if be the second voltage and tertiary voltage respectively, then there is the 4th power supply capacity.
Therefore, the present invention according to the voltage swing of correction data pin and negative data pin, and can determine the power supply capacity of charging device, especially can provide the big current more than 500mA.
Accompanying drawing explanation
Fig. 1 is the operating process schematic diagram showing charging device power supply capacity method of discrimination of the present invention;
Fig. 2 is the system schematic showing charging device power supply capacity method of discrimination of the present invention.
Embodiment
Below coordinate graphic and component symbol to do more detailed description to embodiments of the present invention, can implement according to this after studying this specification carefully to make those of ordinary skill in the art.
With reference to figure 1, it is the operating process schematic diagram of charging device power supply capacity method of discrimination of the present invention.As shown in Figure 1, charging device power supply capacity method of discrimination of the present invention comprises step S10 to S51, when being primarily characterized in that by charging device connection charging device, the power supply capacity of charging device initiatively can be differentiated by charging device, and for further illustrating feature of the present invention, Fig. 2 please be coordinate, for the present invention powers the system schematic of method of discrimination.
First reference diagram 2, be mat connecting interface 3 by charging device 1 and charging device (not shown) and connect, wherein by charging device 1 can comprise there is above-mentioned connecting interface 3 mobile phone, panel computer, notebook computer, portable digital-video player, rechargeable battery, electric saver, electric toothbrush, electric massager, and charging device can comprise battery pack, direct current output transformer, the Large Copacity stand-by power supply of connecting interface 3.In addition, connecting interface 3 at least comprises power pin VCC, correction data pin D+, negative data pin D-and ground connection pin GND, and preferably, connecting interface 3 can be USB (UniversalSerialBus, USB) or other universal serial bus.
Further, interface controller 10 can be at least comprised by charging device 1, power supply judgment controller 20 and function control device 30, wherein interface controller 10 and power supply judgment controller 20 are electrically connected to connecting interface 3, and interface controller 10 receives from the data of charging device in order to transmit data through interface controller 10 to charging device, such as be used as USB device side controller (DeviceController), and judgment controller 20 of powering is the power supply capacities differentiating charging device, and differentiation result is sent to interface controller 10, and function control device 30 is electrically connected to interface controller 10, in order to realize specific function, the high-speed computation processing capacity of the communication function of communication chip or the central processing unit of panel computer in such as mobile phone.Get back to Fig. 1, charging device power supply capacity method of discrimination of the present invention is by step S10, is connected to charging device by charging device 1 via connecting interface 3.Afterwards, enter step S10, after presetting the stand-by period, differentiate whether correction data pin D+ and negative data pin D-is high impedance by power supply judgment controller 20, if high impedance, then enter step S21, determine that charging device has the first power supply capacity, and if not high impedance, then enter step S30.
In step s 30, after presetting the stand-by period, differentiate whether correction data pin D+ and negative data pin D-is short circuit by power supply judgment controller 20, if short circuit, enter step S31, determine that charging device has the second power supply capacity, and if not short circuit, enter step S40.
In step s 40, after presetting the stand-by period, differentiate whether correction data pin D+ and negative data pin D-is all the first voltage by power supply judgment controller 20, if the first voltage, then enter step S41, determine that charging device has the 3rd power supply capacity, and if not the first voltage, enter step S50.
In step s 50, after presetting the stand-by period, differentiate whether correction data pin D+ and negative data pin D-is respectively the second voltage and tertiary voltage, if so, then enters step S51 by power supply judgment controller 20, determine that charging device has the 4th power supply capacity.
Specifically, first power supply capacity can be supply below 0.5A electric current, second power supply capacity can be supply 0.5A to 1.0A electric current, 3rd power supply capacity can be supply 1.0A to 1.5A electric current, and the 4th power supply capacity can be supply more than 1.5A electric current, or the 3rd power supply capacity and the 4th power supply capacity can be supply more than 1.5A electric current.In addition, above-mentioned first voltage can be 1.0V to 1.5V, and this second voltage can be 2.5V to 3.0V, and this tertiary voltage can be 1.8V to 2.4V.
The electronic circuit that above-mentioned interface controller 10, power supply judgment controller 20 and function control device 30 can be microprocessor, central processing unit or be made up of multiple discrete electronic building brick, or it is whole by charging device 1 that microprocessor, central processing unit or discrete electronic circuit can be utilized to realize.
In sum, feature of the present invention be by charging device can the voltage swing of mat correction data pin D+ and negative data pin D-to differentiate and to determine the power supply capacity of charging device.Therefore, method of the present invention can be applicable to the electronic installation with specific currents demand, such as mobile phone, panel computer, notebook computer, portable digital-video player, in order to needed for differentiating whether the power supply capacity of charging device meet, can use and improve overall charging and power consumption efficiency.
The foregoing is only to explain preferred embodiment of the present invention, not attempt does any pro forma restriction to the present invention according to this.Therefore, all have any modification for the present invention or the change done under identical invention spirit, all must be included in the category that the invention is intended to protect.
Claims (4)
1. a charging device power supply capacity method of discrimination, in order to differentiate the power supply capacity of this charging device when one is connected a charging device by charging device, and this charging device and this be mat one connecting interface by charging device and connect, and this connecting interface at least comprises a power pin, one correction data pin, one negative data pin and a ground connection pin, and this is at least comprised an interface controller by charging device, one power supply judgment controller and a function control device, wherein this interface controller and this power supply judgment controller are electrically connected to this connecting interface, and this interface controller receives from the data of this charging device in order to transmit data through this connecting interface to this charging device, and this power supply judgment controller is the power supply capacity differentiating this charging device, and differentiation result is sent to this interface controller, and this function control device is electrically connected to this interface controller, it is characterized in that, this connecting interface is USB (UniversalSerialBus, USB), the power supply capacity of this charging device comprises the electric current provided more than 500 milliamperes (mA), and this power supply method of discrimination comprises:
This is connected to this charging device by charging device via this connecting interface;
After presetting the stand-by period through one, differentiate whether this correction data pin and this negative data pin are high impedance by this power supply judgment controller;
If this correction data pin and this negative data pin are high impedances, then determine that this charging device has one first power supply capacity;
If this correction data pin and this negative data pin are not high impedances, then after this default stand-by period, differentiate whether this correction data pin and this negative data pin are short circuit by this power supply judgment controller;
If this correction data pin and this negative data pin are short circuits, then determine that this charging device has one second power supply capacity;
If this correction data pin and this negative data pin are not short circuits, then after this default stand-by period, differentiate whether this correction data pin and this negative data pin are the first voltage by this power supply judgment controller;
If this correction data pin and this negative data pin are the first voltage, then determine that this charging device has one the 3rd power supply capacity;
If this correction data pin and this negative data pin are not the first voltage, then after this default stand-by period, differentiate whether this correction data pin and this negative data pin are respectively the second voltage and tertiary voltage by this power supply judgment controller; And
If this correction data pin and this negative data pin are the second voltage and tertiary voltage respectively, then determine that this charging device has one the 4th power supply capacity.
2. charging device power supply capacity method of discrimination as claimed in claim 1, is characterized in that, this by charging device be microprocessor, central processing unit or by multiple discrete electronic building brick the electronic circuit that forms.
3. charging device power supply capacity method of discrimination as claimed in claim 1, it is characterized in that, this interface controller, this power supply judgment controller and this function control device are realized by microprocessor, central processing unit or the electronic circuit that is made up of multiple discrete electronic building brick.
4. charging device power supply capacity method of discrimination as claimed in claim 1, it is characterized in that, this first voltage is 1.0V to 1.5V, and this second voltage is 2.5V to 3.0V, and this tertiary voltage is 1.8V to 2.4V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572222.1A CN103904703B (en) | 2012-12-26 | 2012-12-26 | Charging device power supply capacity method of discrimination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572222.1A CN103904703B (en) | 2012-12-26 | 2012-12-26 | Charging device power supply capacity method of discrimination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103904703A CN103904703A (en) | 2014-07-02 |
| CN103904703B true CN103904703B (en) | 2016-03-02 |
Family
ID=50995905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210572222.1A Expired - Fee Related CN103904703B (en) | 2012-12-26 | 2012-12-26 | Charging device power supply capacity method of discrimination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103904703B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5861729A (en) * | 1992-11-25 | 1999-01-19 | Fujitsu Limited | Charger for portable terminal equipment having on-hook/off-hook detecting means and battery identifying means |
| CN1222263A (en) * | 1996-06-11 | 1999-07-07 | 艾利森公司 | Appts. and method for identifying and charging batteries of different types |
| TW200644376A (en) * | 2005-06-01 | 2006-12-16 | Asustek Comp Inc | Method and charging apparatus controlled by computer for converting input power into required charging voltage and charging current |
| CN1925257A (en) * | 2005-08-31 | 2007-03-07 | 索尼株式会社 | Dedicated power supply apparatus, terminal. power supply system, and power supply method |
| CN101026309A (en) * | 2006-02-16 | 2007-08-29 | 舒米特微电子公司 | Switching battery charging systems and methods |
-
2012
- 2012-12-26 CN CN201210572222.1A patent/CN103904703B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5861729A (en) * | 1992-11-25 | 1999-01-19 | Fujitsu Limited | Charger for portable terminal equipment having on-hook/off-hook detecting means and battery identifying means |
| CN1222263A (en) * | 1996-06-11 | 1999-07-07 | 艾利森公司 | Appts. and method for identifying and charging batteries of different types |
| TW200644376A (en) * | 2005-06-01 | 2006-12-16 | Asustek Comp Inc | Method and charging apparatus controlled by computer for converting input power into required charging voltage and charging current |
| CN1925257A (en) * | 2005-08-31 | 2007-03-07 | 索尼株式会社 | Dedicated power supply apparatus, terminal. power supply system, and power supply method |
| CN101026309A (en) * | 2006-02-16 | 2007-08-29 | 舒米特微电子公司 | Switching battery charging systems and methods |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103904703A (en) | 2014-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203387203U (en) | Charging switching system possessing USB on-the-go (OTG) function | |
| CN103457348B (en) | Semiconductor integrated circuit and operating method thereof | |
| TWI559122B (en) | Universal power interface | |
| EP2985856A1 (en) | Usb charging system with variable charging voltage, charger, and intelligent terminal | |
| CN203800642U (en) | Charging Po and charging system | |
| CN201813422U (en) | Charging chip and mobile terminal capable of automatically adjusting charging mode | |
| CN208174340U (en) | The power supply circuit and electronic product of portable electronic product with OTG function | |
| CN203722283U (en) | Charging cable and charging system | |
| CN103326078A (en) | Mobile device charging method and system | |
| CN101853970A (en) | Method and device for charging through universal serial bus (USB) interface | |
| CN105829990A (en) | Method and apparatus for charging electronic device with USB connection | |
| CN109921481A (en) | To the OTG equipment and method of supplying power to of communication object power supply when USB is communicated | |
| CN103403643B (en) | Management of charging and discharging device and mobile terminal | |
| CN202076771U (en) | USB OTG circuit and portable electronic device utilizing thereof | |
| CN203324980U (en) | Intelligently-switched chargeable USB HUB device used in cooperation with notebook computer power adapter | |
| CN204761115U (en) | Multifunctional mobile power supply | |
| CN203502964U (en) | Bluetooth USB (Universal Serial Bus) key capable of being connected with mobile phone | |
| CN104181987A (en) | Docking station and control method | |
| CN103166251A (en) | Charging circuit for standby battery | |
| CN104953631A (en) | Current control method and terminal device | |
| CN102103386B (en) | Voltage regulating circuit, voltage regulating method and computer system of voltage regulating circuit | |
| CN203445629U (en) | Multifunctional back clip system of intelligent mobile terminal | |
| CN103904703B (en) | Charging device power supply capacity method of discrimination | |
| CN104124718B (en) | Electric supply installation and method of supplying power to | |
| CN106797414A (en) | The leakage current detection circuit and terminal of a kind of terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20211226 |