CN2562481Y - Power supply systems - Google Patents
Power supply systems Download PDFInfo
- Publication number
- CN2562481Y CN2562481Y CN 02242346 CN02242346U CN2562481Y CN 2562481 Y CN2562481 Y CN 2562481Y CN 02242346 CN02242346 CN 02242346 CN 02242346 U CN02242346 U CN 02242346U CN 2562481 Y CN2562481 Y CN 2562481Y
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- Prior art keywords
- power supply
- voltage
- stabilizing circuit
- voltage stabilizing
- stand
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Abstract
The utility model relates to a power supply system which comprises a primary power voltage-stabilizing circuit, a standby power voltage-stabilizing circuit and an automatic electronic switch. The primary power voltage-stabilizing circuit comprises a first rectifier for outputting a first voltage signal as an output of the primary power supply. The standby power voltage-stabilizing circuit comprises a second rectifier for outputting a standby voltage signal as an output of the standby power supply. The automatic electronic switch is under the control of a power supply start signal and receives the standby voltage signal to output a second voltage as another output of the primary power supply.
Description
Technical field
The utility model relates to a kind of power system, and is particularly related to a kind of power system with stand-by power supply.
Background technology
Early stage power supply unit (power supply) only has one group of main power supply voltage stabilizing circuit (mainpower regulator), must turn on the power switch power supply for a long time.Since Intel in developed in 1995 the ATX specification after, support the power supply unit of ATX motherboard to adopt two groups of voltage stabilizing circuits, that is newly-increased one group of stand-by power supply voltage stabilizing circuit (standby power regulator).
Traditional ATX power supply unit can provide the output of main power supply (main power) and the output of one group of stand-by power supply (standby power).Be used for the output dc voltage value for+12V ,+5V and+circuit framework of the main power supply of 3.3V is at one group of switch type voltage stabilizing circuit (switching regulator), being used for the output dc voltage value then is that stand-by power supply promptly is provided under the situation that power supply is not opened for the circuit of the stand-by power supply of+5V, so stand-by power supply also needs another group switch type voltage stabilizing circuit.
Please refer to Fig. 1, it illustrates traditional power supply unit under the ATX framework, and the calcspar of the required power supply of memory system is provided.When system detects application program or device and is in non-working condition, can use battery saving mode (suspend mode) with the execution speed that reduces the computer-internal device or stop using these devices, reach the function of saving power supply.Traditional ATX power supply unit has main power supply voltage stabilizing circuit 10 and stand-by power supply voltage stabilizing circuit 11, when the motherboard of arrange in pairs or groups use had the function that can support STR (Suspend to RAM) battery saving mode, memory system 101 required power supplys were to be switched by two switches by two groups of power-supply systems.So-called STR battery saving mode is meant and keeps memory system 101 systems that electricity is arranged that miscellaneous equipment all cuts off the power supply, and supplies memory system 101 this moment and receives stand-by power supply SP.As shown in Figure 1, when normal mode, electronic switch (MOS switch) 103 receives switching signal SW1 and conducting, and provide memory system 101 main power supply MPs by main power supply voltage stabilizing circuit 10 this moment.When the STR pattern, electronic switch 105 receives switching signal SW2 and conducting, and then provide memory system 101 stand-by power supply SP by stand-by power supply voltage stabilizing circuit 11 this moment.Then outage fully when shutdown.
Please refer to Fig. 2, it illustrates the circuit diagram of traditional ATX power system.Alternating-current voltage source 201 output AC voltage signal AC are to main power supply voltage stabilizing circuit 10 and stand-by power supply voltage stabilizing circuit 11.Main power supply voltage stabilizing circuit 10 comprises switch type control circuit (switching controller) 203, electronic switch (MOS switch) 205, can organize the transformer (transformer) 207 of output more ,+rectifier 208 of 12V ,+rectifier 209 of 5V and+rectifier 210 of 3.3V.Rectifier 208,209 and 210 is exportable voltage signal Out12V, Out5V and Out3.3V respectively, provide+12V ,+5V and+output voltage of 3.3V.And stand-by power supply voltage stabilizing circuit 11 comprise switch type control circuit 213, electronic switch 215, transformer 217 ,+rectifier 219 of 5V.Rectifier 219 output voltage signal Out5VSB provide+output voltage of the stand-by power supply of 5V.Voltage reference+5V of the voltage signal Out5VSB that the voltage reference+5V of the voltage signal Out5V that rectifier 209 in the wherein main power supply voltage stabilizing circuit 10 is provided and the rectifier 219 of stand-by power supply voltage stabilizing circuit 11 are provided is identical, yet because of being dispersed on two groups of voltage stabilizing circuits, cause the waste of voltage stabilizing circuit, voltage regulation result is also relatively poor simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of power system, simplify complicated voltage stabilizing line architecture, under the considering who takes into account compatibility and stability, overall volume is diminished and then save the space, reduce cost, more can improve its reliability and power supply voltage regulation result.
According to the purpose of this utility model, a kind of power system is proposed, be installed in the computer equipment, this power system is used to export a main power supply and a stand-by power supply.This power system comprises a main power supply voltage stabilizing circuit, a stand-by power supply voltage stabilizing circuit and an Automatic Electronic Switch.Main power supply voltage stabilizing circuit comprises one first rectifier, is used to export one first voltage signal with the output as this main power supply.Stand-by power supply voltage stabilizing circuit comprises one second rectifier, is used to export a standby voltage signal with the output as stand-by power supply.Automatic Electronic Switch is then accepted the control of a power-on signal and is received the standby voltage signal, is used to export one second voltage signal with another output as main power supply.
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Fig. 1 be the conventional power source supply under the ATX framework, the calcspar of the required power supply of memory system is provided;
Fig. 2 is the calcspar of traditional ATX power system;
Fig. 3 is the calcspar according to a kind of power system of the utility model one preferred embodiment.Description of symbols
10, the main power supply voltage stabilizing of 30--circuit
11,31--stand-by power supply voltage stabilizing circuit
101--memory system 103,105,205,215,305,315--electronic switch
201,301--alternating-current voltage source 203,213--switch type control circuit
207,217,307,317--transformer
208,209,210,219,308,310,319--rectifier
The 321--Automatic Electronic Switch
Embodiment
Identical voltage reference will be provided the utility model and the rectifying circuit that is dispersed on main power supply voltage stabilizing circuit and the stand-by power supply voltage stabilizing circuit is combined into one, can save a rectifier in the main power supply, and simplify the design of main power supply voltage stabilizing circuit.
Please refer to Fig. 3, it illustrates the calcspar according to a kind of power system of the utility model one preferred embodiment.In this embodiment, power system is installed in the computer equipment, and required d. c. voltage signal when being used for the conversion ac voltage signal and being the computer equipment operation is to provide a plurality of different voltage reference values.As shown in Figure 3, power system comprises a main power supply voltage stabilizing circuit 30, a stand-by power supply voltage stabilizing circuit 31 and and Automatic Electronic Switch 321.Main power supply voltage stabilizing circuit 30 is respectively applied for stand-by power supply voltage stabilizing circuit 31 main power supply and stand-by power supply is provided.Main power supply voltage stabilizing circuit 30 comprises rectifier 308, and being used to provides+and the first voltage signal Out12V of 12V is with as the mainly output of power supply.One stand-by power supply voltage stabilizing circuit comprises a rectifier 319, is used to provide the standby voltage signal Out5VSB of one+5V with the output as stand-by power supply.Electronic switch 321 receives the standby voltage Out5VSB of above-mentioned+5V and in response in the control from the power-on signal PSON of motherboard MB, and export+the second voltage signal Out5V of 5V is with as mainly another output of power supply.
Wherein, main power supply voltage stabilizing circuit 30 also comprises a switch type control circuit 303, a transformer 307 and an electronic switch 305.Transformer 307 electrically connects with rectifier 308.Electronic switch 305 then is by 303 controls of switch type control circuit, optionally makes transformer 307 receive ac voltage signal AC.In addition, main power supply voltage stabilizing circuit 30 also comprises rectifier 310, is used to export+the tertiary voltage signal Out3.3V of 3.3V.Wherein, enter when computer system under the normal condition of electric power starting, power system promptly provides main power supply, and switch type control circuit 303 makes electronic switch 305 conductings (ON) at this moment, so that main power supply stabilization circuit is exported the DC power supply of different dc voltage values.
Stand-by power supply voltage stabilizing circuit 31 then also comprises switch type control circuit 313, transformer 317 and electronic switch 315.Transformer 317 electrically connects with rectifier 319.Electronic switch 315 then is by 313 controls of switch type control circuit, and optionally makes transformer 317 receive ac voltage signal AC.When stand-by power supply voltage stabilizing circuit 31 must provide power supply, then electronic switch 315 conductings.
Further, when power system carry out+during the output of the voltage of 12V, treating that switch type control circuit 303 is finished handshaking action and sent switching signal makes electronic switch 305 conductings, the ac voltage signal AC that alternating-current voltage source 301 is provided is inputed in the transformer 307, after transformer 307 change ac voltages, warp let-off rectifier 308 and produce direct voltage, with the first voltage signal Out12V of output+12V, provide+direct voltage of 12V exports.When power system is carried out+5V voltage when output, motherboard MB sends power-on signal PSON to Automatic Electronic Switch 321, after Automatic Electronic Switch 321 receives power-on signal PSON and conducting, then with received+the standby voltage signal Out5VSB of 5V output, be+the second voltage signal Out5V of 5V.Because after the power-on, computer equipment enters normal mode, stand-by power supply voltage stabilizing circuit 31 promptly is in the stand-by state of wait, so after Automatic Electronic Switch 321 conductings, can be with stand-by power supply warp let-off electronic switch 315, transformer 317 and second rectifier 319, and by the second voltage signal Out5V of Automatic Electronic Switch 321, with another output as main power supply with output+5V.
Under framework of the present utility model, main power supply voltage stabilizing circuit 30 can increase rectifier so that the voltage output of other voltage reference to be provided.As shown in Figure 3, main power supply voltage stabilizing circuit 30 except switch type control circuit 303, electronic switch (a for example MOS switch switch) 305, can organize output more transformer 307 and rectifier 308, also can comprise a rectifier 310, and rectifier 308 and 310 respectively exportable first voltage signal Out12V and tertiary voltage signal Out3.3V, with provide+12V and+the dc reference value of 3.3V.And stand-by power supply voltage stabilizing circuit 31 comprises switch type control circuit 313, electronic switch 315, transformer 317, rectifier 319, Automatic Electronic Switch 321; Rectifier 319 output standby voltage signal Out5VSB provide the dc reference value to be+5 standby voltage, and by Automatic Electronic Switch 321 provide+the second voltage signal Out5V of 5V is with as the mainly output of power supply.
The framework of conventional power source supply in Fig. 2, the utility model saves in the main power circuit+5V rectifier 209, simplify complicated main power supply voltage stabilizing line architecture, rectifier 209 is combined with 219 pairing two groups of voltage stabilizing circuits, and the power of raising stand-by power supply voltage stabilizing circuit 31, make and only need utilize an Automatic Electronic Switch 321 just can be directly to provide dc voltage value to be+the main power supply output of 5V by stand-by power supply voltage stabilizing circuit 31, avoid the waste of voltage stabilizing circuit, increase voltage regulation result.
Please refer to Fig. 2, generally speaking, the main power supply voltage stabilizing circuit 10 of the power output of traditional stand-by power supply voltage stabilizing circuit 11 is little, for example be that traditional main power supply voltage stabilizing circuit 10 can provide 20 amperes output, and stand-by power supply voltage stabilizing circuit 11 only provides the output of 0.2--2 ampere.Please refer to Fig. 3, for stand-by power supply voltage stabilizing circuit 31 a stable main power supply output, stand-by power supply voltage stabilizing circuit 11 height that the power output of stand-by power supply voltage stabilizing circuit 31 of the present invention is more traditional of providing are provided.At this moment, the specification of spare parts such as the transformer 317 in the then necessary change stand-by power supply voltage stabilizing circuit 31, rectifier 319, switch type control circuit 313 is to promote the power output of stand-by power supply voltage stabilizing circuit 31.For example with transformer 317 with thicker coil come around, and the transistor of the diode of rectifier 319 and electronic switch 315 adopted the assembly of withstand voltage anti-stream, reach the purpose of the power output that improves stand-by power supply voltage stabilizing circuit 31.After the power output that promotes stand-by power supply voltage stabilizing circuit 31, traditional rectifier 209 pairing voltage stabilizing circuits can be replaced by stand-by power supply voltage stabilizing circuit 31.
In addition, because rectifier has transformation/induction coil, two-in-one diode, electric capacity one whole group part, and Automatic Electronic Switch only uses a transistor to reach, so the utility model is simplified circuit design.Not only can save the space, make outside overall volume diminishes, the cost of the Automatic Electronic Switch that it increased is cheaply many more than the rectifier that is saved.Also can take into account and standard A TX power supply unit joint compatibility, have same performance simultaneously, more can increase its reliability.When the computer main frame panel with its collocation use has the function that can support the STR battery saving mode, stand-by power supply power enough provides the internal memory operate as normal, as long as the circuit switched on the motherboard stays an Automatic Electronic Switch to stand-by power supply voltage stabilizing circuit 31, do not need to switch by two switches, therefore also can reduce the spare part on the motherboard by two groups of power-supply systems.
The disclosed power system of the utility model the foregoing description, simplify complicated voltage stabilizing line architecture, only need utilize an Automatic Electronic Switch just can directly provide one group of voltage output by stand-by power supply voltage stabilizing circuit, save one group of rectifier in the main power supply, not only can save the space, make outside overall volume diminishes, the cost of the Automatic Electronic Switch that it increased is cheaply many more than the rectifier that is saved, also can provide the power supply unit of taking into account compatibility and having same performance, more can increase its reliability, improve the power supply voltage regulation result.In addition, when the computer main frame panel with its collocation use has the function that can support the STR battery saving mode, do not need to switch by two switches, also can reduce the spare part on the motherboard by two groups of power-supply systems.
In sum; though the utility model with a preferred embodiment openly as above; so it is not to be used to limit the utility model; any those of ordinary skills; in not breaking away from spirit and scope of the present utility model; change and revise when doing various equivalence, therefore protection range of the present utility model should with claim the person of being defined be as the criterion.
Claims (11)
1. a power system is characterized in that, comprising:
One main power supply voltage stabilizing circuit is exported one first voltage;
One stand-by power supply voltage stabilizing circuit is exported a standby voltage; And
One Automatic Electronic Switch is in response to exporting this standby voltage with one second voltage as this main power supply voltage stabilizing circuit in a power-on signal.
2. power system as claimed in claim 1 is characterized in that, this power-on signal is from a motherboard.
3. power system as claimed in claim 1 is characterized in that, this main power supply voltage stabilizing circuit also comprises:
One first switch type control circuit is exported this power-on signal;
One first transformer electrically connects with this first rectifier; And
One first electronic switch by this first switch type control circuit control, optionally makes this first transformer receive an alternating voltage.
4. power system as claimed in claim 1 is characterized in that, this main power supply voltage stabilizing circuit also comprises one the 3rd rectifier, exports a tertiary voltage.
5. power system as claimed in claim 4 is characterized in that, the dc reference value of this first voltage signal, this second voltage signal and this tertiary voltage signal is respectively+12V ,+5V and 3.3V.
6. power system as claimed in claim 1 is characterized in that, this stand-by power supply voltage stabilizing circuit also comprises:
One second switch type control circuit;
One second transformer electrically connects with this second rectifier; And
One second electronic switch by this second switch type control circuit control, optionally makes this first transformer receive an alternating voltage.
7. power system as claimed in claim 1 is characterized in that, this standby voltage is identical with the dc reference value of this second voltage.
8. power system as claimed in claim 1 is characterized in that, optionally makes this first transformer receive an alternating voltage.
9. power system as claimed in claim 1 is characterized in that, this standby voltage is identical with the dc reference value of this second voltage.
10. power system as claimed in claim 1 is characterized in that, the dc reference value of this standby voltage signal is+5V.
11. power system as claimed in claim 1 is characterized in that, the required power supply of an internal memory in this computer equipment is provided by this stand-by power supply voltage stabilizing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02242346 CN2562481Y (en) | 2002-08-05 | 2002-08-05 | Power supply systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02242346 CN2562481Y (en) | 2002-08-05 | 2002-08-05 | Power supply systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2562481Y true CN2562481Y (en) | 2003-07-23 |
Family
ID=33714932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02242346 Expired - Lifetime CN2562481Y (en) | 2002-08-05 | 2002-08-05 | Power supply systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2562481Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7917775B2 (en) | 2006-10-18 | 2011-03-29 | Asustek Computer Inc. | Power supply system |
| CN106451746A (en) * | 2016-10-18 | 2017-02-22 | 广西电网有限责任公司电力科学研究院 | Outdoor tester power supply method |
-
2002
- 2002-08-05 CN CN 02242346 patent/CN2562481Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7917775B2 (en) | 2006-10-18 | 2011-03-29 | Asustek Computer Inc. | Power supply system |
| CN106451746A (en) * | 2016-10-18 | 2017-02-22 | 广西电网有限责任公司电力科学研究院 | Outdoor tester power supply method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120805 Granted publication date: 20030723 |