CN101202458A - Power supply circuit - Google Patents
Power supply circuit Download PDFInfo
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- CN101202458A CN101202458A CNA2006101670542A CN200610167054A CN101202458A CN 101202458 A CN101202458 A CN 101202458A CN A2006101670542 A CNA2006101670542 A CN A2006101670542A CN 200610167054 A CN200610167054 A CN 200610167054A CN 101202458 A CN101202458 A CN 101202458A
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- 230000002159 abnormal effect Effects 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims description 21
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- 238000001914 filtration Methods 0.000 claims description 6
- 230000000284 resting effect Effects 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 description 8
- 238000007726 management method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000013500 data storage Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
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Abstract
The invention provides a power supply circuit which is applied to an electronic device which is provided with a backup battery, a power supplier and a shutdown software. The shutdown software outputs corresponding state signals according to a normal shutdown state and a dormant state of the electronic device. The power supply circuit comprises a trigger which is used for receiving abnormal shutdown signals, outputs a triggering signal and outputs the received abnormal shutdown signals to a switcher which is used for receiving a control signal which takes the backup battery as the power supply source, receives the control signal which takes the power supplier as the power source, outputs a backup battery power supply signal according to the abnormal shutdown signal, and outputs a power supplier power supply signal when not receiving the abnormal shutdown signal, and a voltage converter which respectively receives voltages transmitted by the backup battery and the power supplier and carries out voltage conversion by the backup battery or the power supplier correspondingly according to the power supply signal output by the switcher, and takes the backup battery or the power supplier as the power supply source of the electronic device.
Description
Technical field
The present invention relates to a kind of power-supplying circuit, refer to a kind of power-supplying circuit that can in good time order about reserve battery immediately according to the situation of the undesired interruption of civil power especially as the power supply source.
Background technology
The supply of electric power is very important for electronic installation, if there is not the supply of electric power, even function is powerful more of no avail.Therefore, the higher electronic installation of importance generally has reserve battery in addition except the power supply of civil power (being the electric power that power supply unit provides), to still have electric power to provide immediately when the civil power that takes place to expect interrupts.
Below be the example explanation with storage server (storage server), it is in data storage procedure, be not immediately in the memory disk, but be stored in advance in the cache memory (cache), cause the situation of the data loss that is temporary in this cache memory to take place for the power breakdown that power supply unit provided takes place before not being stored in disk the data of avoiding the desire storage, therefore, storage server is when detecting civil power interruption situation, then change with reserve battery as the power supply source, to guarantee integrity of data storage, so reserve battery is also being played the part of considerable role in the total system of storage server.
As shown in Figure 1, it is in order to show the power supply unit in this storage server and the power supply commutation circuit of reserve battery, voltage+12V is provided by civil power, and more carry out the person of AC/DC conversion (AC/DC) back gained, be not inconsistent owing to the resulting voltage in AC/DC conversion back is excessive and can pass through second electric pressure converter (voltage regulator device when this storage server uses via a power supply unit (being illustrated) at this; VRD) 12 convert less voltage to, for example voltage+12V is converted to+2.55V.
When mains-supplied is undesired, for example comprise that power supply is unstable, power breakdown etc., this storage server can send signal S1 and signal S2, this signal S1 is in order to start reserve battery 1 to originate as supply of electric power, and this signal S2 is in order to supply of electric power path of opening this reserve battery 1 and the supply path that cuts off this power supply unit, wherein, one switch element 13 is as the control media of opening this reserve battery 1 supply of electric power path, and this switch element 13 can for example be metal-oxide semiconductor (MOS) (MOSFET), utilize the characteristic electron of this switch element 13, can open the supply of electric power path of this reserve battery 1 and cut off the supply path of this power supply unit, or open the supply path of this power supply unit and cut off the supply of electric power path of this reserve battery 1, in other words, coming the supply path of control store server with this switch element 13 is this reserve battery 1 or this power supply unit.
Can input in first electric pressure converter 11 as for the signal S1 that this storage server sent, with when mains-supplied is undesired, voltage+8.4V that 11 pairs of these reserve batteries 1 of this first electric pressure converter are provided changes, meet the voltage that this storage server can use to be converted to, for example voltage+8.4V is converted to+2.5V; Yet, if mains-supplied just often, this storage server can't send signal S1 to this first electric pressure converter 11, so this first electric pressure converter 11 will not carry out voltage transitions, and this reserve battery 1 processing (being discharge process) of also not powering, voltage+12V that this moment, power supply unit provided then is sent in this charge-discharge circuit 10, so that 10 pairs of reserve batteries 1 of this charge-discharge circuit charge, when treating the undesired generation of mains-supplied, can make this reserve battery 1 have enough electric power to use for storage server.
Though the power supply unit by as shown in Figure 1 and the power supply commutation circuit of reserve battery can provide storage server still can provide electric power immediately by reserve battery when the undesired generation of mains-supplied takes place, but still have following problem: first, signal S1 that this storage server sent and signal S2 coordinate to be difficult for, also be, when the undesired generation of mains-supplied, though this storage server has sent this signal S2 and has controlled the supply path that this switch element 13 is opened the supply of electric power path of this reserve battery 1 and cut off this power supply unit, but if the signal S1 that sent is instant inadequately, this first electric pressure converter 11 also can't be immediately be converted to the voltage+8.4V of reserve battery 1+2.5V; Second, because this switch element 13 is except that the control that is controlled by signal S2, more need according to this reserve battery 1 and power supply unit transmits and voltage swing after electric pressure converter carries out voltage transitions as switching, particularly, (voltage exported of this first electric pressure converter 11 is+2.5V to be subject to the required pressure drop of this switch element 13; And the voltage that this second electric pressure converter 12 is exported is+and 2.55V), cause storage that unsettled situation takes place, for example wrong address is not stored or be stored in to the data of this storage; The 3rd, owing to need to use first electric pressure converter 11 and second electric pressure converter 12 to carry out the usefulness of voltage transitions with battery 1 and power supply unit with incense respectively, so hardware cost is higher.
Therefore, how to develop the stable low power-supplying circuit of cost that reaches of a kind of storage, with the shortcoming of power supply on switching that solves above-mentioned existing reserve battery and power supply unit, real is the problem that needs solution now.
Summary of the invention
Shortcoming in view of above prior art, main purpose of the present invention is to provide a kind of power-supplying circuit, being applied to one has in the electronic installation of reserve battery and power supply unit, to change in the undesired interruption of civil power with reserve battery as when source power supply, this electronic installation is immediately according to the situation of the undesired interruption of civil power, order about this reserve battery as the power supply source in good time, provide stability good power supply incoming call thus, so that the stores processor of data is more certain.
A further object of the present invention is to provide a kind of power-supplying circuit, is applied to one and has in the electronic installation of reserve battery and power supply unit, and a kind of power-supplying circuit that reduces hardware cost is provided.
For reaching above-mentioned purpose and other relevant purposes, the invention provides a kind of power-supplying circuit, be applied to one and have reserve battery, in the electronic installation of power supply unit and shutdown software, this shutdown software is normal shutdown state and the corresponding status signal of resting state output according to electronic installation, this power-supplying circuit comprises: trigger, it has at least one signal receiving end, triggering signal end and output, this signal receiving end is in order to receive the abnormal shutdown signal that this shutdown software is exported, and this triggering signal end is exported a triggering signal in order to be in abnormal shutdown state following time according to this power supply unit, so that this output abnormal shutdown signal that this signal receiving end is received is exported; Switch, it has first and second input at least, one selecting side and control signal end, this first input end is in order to receive with the control signal of this reserve battery as the power supply source, this second input is in order to receive with the control signal of this power supply unit as the power supply source, the output of this selecting side and this trigger electrically connects, and according to the abnormal shutdown signal that output transmitted of this trigger, make this control signal end export a reserve battery power supply signal, and do not receiving the abnormal shutdown signal that output transmitted of this trigger, making this control signal end export a power supply unit power supply signal; And electric pressure converter, the voltage that it receives this reserve battery and power supply unit respectively and is transmitted, and carry out voltage transitions with this reserve battery or power supply unit accordingly according to reserve battery power supply signal or the power supply unit power supply signal that the control signal end of this switch is transmitted, with power supply source as this electronic installation.
Among one embodiment of power-supplying circuit of the present invention, a this trigger triggering signal end and a power supply unit power supply state circuit electrically connect, this power supply unit power supply state circuit is made up of a gate and a filter circuit, this gate has at least two inputs and an output, this input and this power supply unit electrically connect, in order to receive the power supply state signal that this power supply unit transmits, another input is in order to receive the output signal after this filter circuit carries out Filtering Processing, and this filter circuit carries out the power supply state signal that the object of Filtering Processing refers to that this power supply unit transmits, and the triggering signal end of this output and this trigger electrically connects.
As above-mentioned, the foundation that the S5 pattern that power-supplying circuit of the present invention utilizes this switch, trigger and advanced power management architecture (ACPI) to be provided is switched as the power supply source, therefore, power supply source switching time is more accurate, and can make the stable running of this electronic installation, and only need single electric pressure converter, so existing power supply source handoff technique is more saved hardware cost.
Description of drawings
Fig. 1 is the block schematic diagram in order to the power supply commutation circuit that shows power supply unit in the existing electronic installation and reserve battery; And
Fig. 2 is in order to show the block schematic diagram of power-supplying circuit of the present invention.
The main element symbol description
1 reserve battery
10 charge-discharge circuits
11 first electric pressure converters
12 second electric pressure converters
13 switch elements
20 d type flip flops
21 filter circuits
210 with the door
211 RC filter circuits
212 NOR gate
22 multiplexers
23 electric pressure converters
24 charge-discharge circuits
25 reserve batteries
26 memory cell
A1, A2 input
The A3 output
The BATT_P control signal
The PGD control signal
The D1 signal receiving end
D2 triggering signal end
D3, N3 output
N1, N2 input
M1, M2 input
The M3 selecting side
M4 control signal end
The PGD_EN power supply signal
S1, S2 signal
S5_N abnormal shutdown signal
Embodiment
Below by instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the content that this specification disclosed.
See also Fig. 2, in order to show the block schematic diagram of power-supplying circuit of the present invention, this power-supplying circuit is applied to one and has reserve battery, in the electronic installation of power supply unit and shutdown software, abnormal power breakdown (when for example this electronic installation can't receive civil power) can take place and change with this reserve battery to originate as power supply in this electronic installation at this power supply unit, data during electronic installation with the power breakdown of avoiding expecting in causing operating damages or handles are lost, the described electronic installation of following examples is the example explanation with the storage server, but not as limit.
Above-mentioned shutdown software is advanced power management architecture (ACPI), owing to power-supplying circuit of the present invention except that as existing power supply technique this power supply unit take place abnormal power breakdown change with this reserve battery as the power supply source, more the S5 pattern that is provided according to this advanced person's power management architecture is as switching foundation, and detailed content please be held explanation.
Power-supplying circuit of the present invention comprises d type flip flop 20, power supply unit power supply state circuit 21, multiplexer 22, electric pressure converter 23, charge-discharge circuit 24.Below will distinctly illustrate aforementioned components.
This d type flip flop 20 has a signal receiving end D1, triggering signal end D2 and output D3, this signal receiving end D1 is in order to receive the abnormal shutdown signal S5_N that this advanced person's power management architecture (ACPI) is exported, and this triggering signal end D2 exports a triggering signal in order to be in abnormal shutdown state following time according to this power supply unit, this triggering signal for example is the triggering signal of high levels, to utilize the characteristic of this D flip-flop 20, this output D3 abnormal shutdown signal that this signal receiving end D1 is received is exported.The aforementioned power source supply is in the abnormal shutdown state and is meant that this storage server do not finish S5 pattern that this advanced person's power management architecture provides and shutdown person, also be, this S5 pattern be meant this storage server in the shutdown before all data are finished storage, the storage that for example will be stored in temporary storage location (being illustrated at this) is in memory cell 26, with after start next time, still can in this memory cell 26, read handled data when last time starting shooting, and unlikely data are lost, this memory cell 26 is disk for example, and this temporary storage location cache memory (cache) for example, but, at this not as limit.
In addition, the triggering signal end D2 of this D flip-flop 20 and a power supply unit power supply state circuit 21 electrically connect, this power supply unit power supply state circuit 21 is formed with door (ANDGate) 210 and a RC filter circuit 211 by one, be somebody's turn to do two input (A1 with door 210, A2) and an output terminals A 3, this input A1 electrically connects with this power supply unit (being illustrated at this), in the present embodiment (as shown in Figure 2), this input A1 electrically connects with the output N3 of a NOR gate (NOR Gate) 212, and two inputs of this NOR gate 212 (N1, N2) electrically connect with first power supply unit and second source supply (at this all not with diagram) transmission line respectively in order to output voltage signal, provide the purpose of two groups of power supply units at this, be be standby, also be, when a power supply unit damages, can take over powered operation by another power supply unit.
When two power supply units wherein when not having the power breakdown of expection, also be that input N1 or input N2 are when receiving low level signal (being logical signal 0), then output N3 exports high levle signal (being logical signal 1), and reach this and door 210 input 210, simultaneously, this RC filter circuit 211 carries out Filtering Processing to the output N3 of this NOR gate 212 in addition, to filter contingent surge signal, resulting result carries out computing after making signal that this and door 210 exported according to the output N3 of this NOR gate 212 and this RC filter circuit 211 Filtering Processing, according to can obtaining a high levle signal (being logical signal 1) after the aforementioned logical signal computing, and export the received abnormal shutdown signal S5_N of this signal receiving end D1 according to the output D3 that the characteristic of this D flip-flop 20 can trigger this D flip-flop 20.
What this must propose explanation be, in the power-supplying circuit of the present invention, in order to receiving the abnormal shutdown signal that this shutdown software is exported, and the electronic component of in good time exporting this abnormal shutdown signal is not limited to D flip-flop 20, and electronic component that also can equivalence replaces.
This multiplexer 22 has first and second input (M1, M2), one selecting side M3 and control signal end M4, this first input end M1 is in order to receive with the control signal BATT_P of this reserve battery 25 as the power supply source, this second input M2 is in order to receive with the control signal PGD of this power supply unit as the power supply source, the output D3 of this selecting side M3 and this D flip-flop 20 electrically connects, and the abnormal shutdown signal S5_N that is transmitted according to the output D3 of this D flip-flop 20, make this control signal end M4 export a reserve battery power supply signal, and do not receiving the abnormal shutdown signal that output transmitted of this D flip-flop, making this control signal end M4 export a power supply unit power supply signal PGD_EN.
This electric pressure converter 23 receives this reserve battery 25 and voltage that power supply unit transmitted respectively, and carry out voltage transitions with this reserve battery 25 or power supply unit accordingly according to reserve battery power supply signal or the power supply unit power supply signal that the control signal end M4 of this multiplexer 22 is transmitted, with power supply source as this storage server.Because the charge-discharge circuit 24 shown in Fig. 2 is identical with the function and the operation principles of the charge-discharge circuit 10 of Fig. 1, so will not give unnecessary details at this.
What this must propose explanation be, in the power-supplying circuit of the present invention, be not limited to multiplexer 22 in order to output for the electronic component that this electric pressure converter 23 switches the power supply signal of foundation as power supply source, electronic component that also can equivalence replaces, for example switch etc.
In sum, power-supplying circuit of the present invention removes and can abnormal power breakdown take place and change with this reserve battery to originate as power supply at this power supply unit, outside the purpose that data during electronic installation with the power breakdown of avoiding expecting in causing operating damages or handles are lost, and utilize this multiplexer (or switch), the foundation that the S5 pattern that D flip-flop and advanced power management architecture (ACPI) are provided is switched as the power supply source, therefore, power supply source switching time is more accurate, electronic installation is stable to be operated and make, and only need single electric pressure converter, so existing power supply source handoff technique is more saved hardware cost.
The foregoing description only is illustrative principle of the present invention and effect thereof, but not is used to limit the present invention.Any those skilled in the art all can be under spirit of the present invention and category, and the foregoing description is modified and changed.Therefore, the scope of the present invention should be foundation with the claim.
Claims (9)
1. a power-supplying circuit is applied to one and has in the electronic installation of reserve battery, power supply unit and shutdown software, and this shutdown software is normal shutdown state and the corresponding status signal of resting state output according to electronic installation, and this power-supplying circuit comprises:
Trigger, it has at least one signal receiving end, triggering signal end and output, this signal receiving end is in order to receive the abnormal shutdown signal that this shutdown software is exported, and this triggering signal end is exported a triggering signal in order to be in abnormal shutdown state following time according to this power supply unit, so that this output abnormal shutdown signal that this signal receiving end is received is exported;
Switch, it has first and second input at least, one selecting side and control signal end, this first input end is in order to receive with the control signal of this reserve battery as the power supply source, this second input is in order to receive with the control signal of this power supply unit as the power supply source, the output of this selecting side and this trigger electrically connects, and according to the abnormal shutdown signal that output transmitted of this trigger, make this control signal end export a reserve battery power supply signal, and do not receiving the abnormal shutdown signal that output transmitted of this trigger, making this control signal end export a power supply unit power supply signal; And
Electric pressure converter, the voltage that it receives this reserve battery and power supply unit respectively and is transmitted, and carry out voltage transitions with this reserve battery or power supply unit accordingly according to reserve battery power supply signal or the power supply unit power supply signal that the control signal end of this switch is transmitted, with power supply source as this electronic installation.
2. power-supplying circuit according to claim 1, wherein, this electronic installation is a storage server, and this shutdown software is to be advanced power management architecture, shuts down and the S5 pattern that this storage server is not finished this advanced person's power management architecture and provided is provided this abnormal shutdown state.
3. power-supplying circuit according to claim 2, wherein, the reserve battery power supply signal that transmits according to the selecting side of this switch when this electric pressure converter and carry out voltage transitions with this reserve battery, with as behind the power supply of this storage server source, this storage server is about to be stored in storage in the temporary storage location in memory cell.
4. power-supplying circuit according to claim 3, wherein, this temporary storage location is meant cache memory, and this memory cell is meant disk.
5. power-supplying circuit according to claim 1, wherein, this trigger triggering signal end is to electrically connect with a power supply unit power supply state circuit, this power supply unit power supply state circuit is made up of a gate and a filter circuit, this gate has at least two inputs and an output, this input and this power supply unit electrically connect, in order to receive the power supply state signal that this power supply unit transmits, another input is in order to receive the output signal after this filter circuit carries out Filtering Processing, and this filter circuit carries out the power supply state signal that the object of Filtering Processing is meant that this power supply unit transmits, and the triggering signal end of this output and this trigger electrically connects.
6. power-supplying circuit according to claim 5, wherein, this filter circuit is made up of resistor and capacitor.
7. power-supplying circuit according to claim 1, wherein, this trigger is meant D flip-flop.
8. power-supplying circuit according to claim 1, wherein, this switch is to be multiplexer.
9. power-supplying circuit according to Claim 8, wherein, this multiplexer is two pairs one a multiplexer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101670542A CN101202458B (en) | 2006-12-13 | 2006-12-13 | Power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101670542A CN101202458B (en) | 2006-12-13 | 2006-12-13 | Power supply circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101202458A true CN101202458A (en) | 2008-06-18 |
| CN101202458B CN101202458B (en) | 2012-03-21 |
Family
ID=39517476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101670542A Expired - Fee Related CN101202458B (en) | 2006-12-13 | 2006-12-13 | Power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101202458B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907913B (en) * | 2009-06-05 | 2011-12-21 | 英业达股份有限公司 | Server |
| CN102053687B (en) * | 2009-11-09 | 2012-07-04 | 和硕联合科技股份有限公司 | Electronic device and power supply control module thereof |
| CN104460921A (en) * | 2014-10-29 | 2015-03-25 | 英业达科技有限公司 | Server system |
| CN105094258A (en) * | 2014-04-16 | 2015-11-25 | 鸿富锦精密工业(武汉)有限公司 | Power supply and housing |
| CN106328179A (en) * | 2015-06-22 | 2017-01-11 | 北京忆恒创源科技有限公司 | Power supply circuit and power supply method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1402105A (en) * | 2001-08-14 | 2003-03-12 | 王定良 | Computer power supply device |
| CN1200328C (en) * | 2003-06-19 | 2005-05-04 | 上海北大方正科技电脑系统有限公司 | Power supply management method for palm equipment |
-
2006
- 2006-12-13 CN CN2006101670542A patent/CN101202458B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907913B (en) * | 2009-06-05 | 2011-12-21 | 英业达股份有限公司 | Server |
| CN102053687B (en) * | 2009-11-09 | 2012-07-04 | 和硕联合科技股份有限公司 | Electronic device and power supply control module thereof |
| CN105094258A (en) * | 2014-04-16 | 2015-11-25 | 鸿富锦精密工业(武汉)有限公司 | Power supply and housing |
| CN104460921A (en) * | 2014-10-29 | 2015-03-25 | 英业达科技有限公司 | Server system |
| CN104460921B (en) * | 2014-10-29 | 2017-11-07 | 英业达科技有限公司 | Server system |
| CN106328179A (en) * | 2015-06-22 | 2017-01-11 | 北京忆恒创源科技有限公司 | Power supply circuit and power supply method |
| CN106328179B (en) * | 2015-06-22 | 2024-04-05 | 北京忆恒创源科技股份有限公司 | Power supply circuit and power supply method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101202458B (en) | 2012-03-21 |
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