CN105653004A - Power supply control device - Google Patents
Power supply control device Download PDFInfo
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- CN105653004A CN105653004A CN201410634087.8A CN201410634087A CN105653004A CN 105653004 A CN105653004 A CN 105653004A CN 201410634087 A CN201410634087 A CN 201410634087A CN 105653004 A CN105653004 A CN 105653004A
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- voltage
- comparer
- driving chip
- signal
- control unit
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Abstract
A power supply control device comprises a resistor and a voltage regulation module; the voltage regulation module comprises a comparator, a current source, a current inductor and a control unit; the control unit is connected with a drive chip so as to receive a modulation signal; an inverted input end of the comparator is connected with a first end of the resistor and a first end of the current source so as to receive a first voltage signal; a non-inverting input end of the comparator is connected with the current inductor so as to receive a second voltage; the output end of the comparator is connected with the control unit; when the first voltage is smaller than the second voltage, the comparator sends a high level control signal to the control unit, and the control unit sends the modulation signal to a load; when the first voltage is bigger than or equal to the second voltage, the comparator outputs a low level control signal to the control end of the control unit, and the control unit stops sending the modulation signal to the load.
Description
Technical field
The present invention relates to a kind of Energy control device.
Background technology
Server product mainstream configuration two CPU, four groups of internal memories of arranging in pairs or groups. In great majority application, CPU and internal memory all can be filled. But some time, client is usually only with CPU and a group of internal memory, but not having the voltage regulator of the CPU of work and other group internal memories still in work, this voltage regulator can not control himself closedown or unlatching according to having non-loaded, and this just causes the waste of system energy.
Summary of the invention
In view of above content, it is necessary to provide a kind of and when system no-load operation, the Energy control device of voltage regulator can be closed.
A kind of Energy control device, comprise: a resistance and a voltage-regulation module, described voltage-regulation module comprises a comparer, one current source, one current inductor, described current inductor connects a load, described resistance and current source comprise first end and the 2nd end respectively, the inverting input of described comparer connects the first end of described resistance first end and described current source, to receive one first voltage signal, the in-phase input end of described comparer connects described current inductor, to receive one the 2nd voltage signal, the output terminal of described comparer connects a driving chip, when the first voltage is less than the 2nd voltage, described comparer exports a high-level control signal to described driving chip, described driving chip exports a modulation signal, and to drive, load works, when the first voltage is more than or equal to the 2nd voltage, described comparer exports a low level control signal extremely described driving chip, described driving chip stopping work.
The voltage that the voltage that the resistance that the Energy control device of the present invention is compared outside power supply module by the comparer of a power supply module produces is corresponding with the working current in power supply module, and export according to comparative result control driving chip or stop exporting modulation signal to load. Thus, it is possible to close voltage regulator under no load, and then effective save energy.In addition, by adjusting the resistance of described resistance, it is possible to the voltage of adjustment comparer inverting input arbitrarily, to be satisfied with the demand of dissimilar load.
Accompanying drawing explanation
Fig. 1 is the schematic circuit of the better embodiment of Energy control device of the present invention.
Main element nomenclature
Following embodiment will illustrate the present invention further in conjunction with above-mentioned accompanying drawing.
Embodiment
Below in conjunction with accompanying drawing and better embodiment, the present invention is described in further detail:
Please refer to Fig. 1, Energy control device 100 of the present invention comprises a resistance R0 and a voltage-regulation module 10. Described voltage-regulation module 10 is positioned at the pulse width modulation integrated circuit of described voltage regulator, and described resistance R0 is arranged at the outside of voltage-regulation module 10.
Described voltage-regulation module 10 comprises current source 11, comparer 13, current inductor 15, an one and time delay unit 17. described resistance R0 and current source 11 comprise first end and the 2nd end respectively, and the first end of described resistance R0 and current source 11 all connects the inverting input of described comparer 13, the 2nd equal ground connection of end of resistance R0 and current source 11. described current source 11 is in order to provide resistance R0 mono-working current. the inverting input of described comparer 13 receives the first voltage signal of self-resistance R0, the in-phase input end of described comparer 13 connects described current inductor 15, in order to receive one the 2nd voltage signal corresponding to the electric current being connected load with voltage-regulation module 10 by current inductor 15, the output terminal of described comparer 13 connects the input terminus of a time delay unit 17, the output terminal of described time delay unit 17 connects an enable pin EN of a driving chip 20, the pulse-width modulation pin PWM of described time delay unit 17 connects a load 30, described load 30 connects current inductor 15. in the present embodiment, time delay unit 17 plays the effect preventing signal disturbing, to ensure the accuracy of Signal transmissions.
The electric current exported when described current source 11 is I, described electric current I flows through resistance R0 and produces a voltage V0, and it is passed to the inverting input of described comparer 13, by sensing, electric current I is converted into a relevant voltage V1 and passes to the in-phase input end of comparer 13 described current inductor 15, and the contrast of described comparer 13 receives voltage V0 and V1. The load connected when Energy control device 100 is in complete working order, described voltage V0 is less than voltage V1, comparer 13 exports a high-level control signal to time delay unit 17, and after time delay unit 17 time delay for some time, with the high-level control signal after removing undesired signal and exporting time delay to the enable pin EN of driving chip 20, described enable pin EN controls described pulse-width modulation pin PWM and sends pulse width modulating signal to load 30, to drive load 30 to work. When Energy control device 100 does not connect load or the load that connects is in standby state, described voltage V0 is more than or equal to voltage V1, comparer 13 exports the enable pin EN of a low level control signal to driving chip 20, the lower level that described voltage regulator sends according to the enable pin EN of driving chip 20 and stop work.
According to actual needs, if load is in standby or still has small portion electric current to flow through when not working completely, by adjusting resistance R0 resistance, the voltage V0 of comparer 13 inverting input can be changed, thus adjust the comparison reference of the voltage V1 of comparer 13 in-phase input end, so that comparer 13 exports the enable pin EN of a low level control signal to control driving chip 20, thus control voltage setter stopping work.
So, when load does not work or do not have a load, voltage regulator can be closed by above-mentioned Energy control device 100, and then save energy effectively.
Claims (2)
1. an Energy control device, comprise: a resistance and a voltage-regulation module, described voltage-regulation module comprises a comparer, one current source, one current inductor, described current inductor connects a load, described resistance and current source comprise first end and the 2nd end respectively, the inverting input of described comparer connects the first end of described resistance first end and described current source, to receive one first voltage signal, the in-phase input end of described comparer connects described current inductor, to receive one the 2nd voltage signal, the output terminal of described comparer connects a driving chip, when the first voltage is less than the 2nd voltage, described comparer exports a high-level control signal to described driving chip, described driving chip exports a modulation signal, and to drive, load works, when the first voltage is more than or equal to the 2nd voltage, described comparer exports a low level control signal extremely described driving chip, described driving chip stopping work.
2. Energy control device as claimed in claim 1, it is characterized in that: described voltage-regulation module also comprises a time delay unit, described time delay unit is connected between the output terminal of described comparer and described driving chip, in order to, after the control signal time delay that exported by comparer, to be passed to described driving chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410634087.8A CN105653004A (en) | 2014-11-12 | 2014-11-12 | Power supply control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410634087.8A CN105653004A (en) | 2014-11-12 | 2014-11-12 | Power supply control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105653004A true CN105653004A (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410634087.8A Pending CN105653004A (en) | 2014-11-12 | 2014-11-12 | Power supply control device |
Country Status (1)
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| CN (1) | CN105653004A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000112756A (en) * | 1998-10-08 | 2000-04-21 | Toshiba Corp | Device and method for controlling cpu operation |
| CN1612088A (en) * | 2003-10-27 | 2005-05-04 | 松下电器产业株式会社 | Processor system, instruction sequence optimization device, and instruction sequence optimization program |
| CN101082823A (en) * | 2006-05-29 | 2007-12-05 | 华硕电脑股份有限公司 | Voltage regulator circuit having overcurrent protection |
| CN101345491A (en) * | 2008-05-30 | 2009-01-14 | 华硕电脑股份有限公司 | Frequency conversion multi-phase voltage regulator and its control method |
| CN102520782A (en) * | 2011-12-15 | 2012-06-27 | 江苏中科梦兰电子科技有限公司 | Power supply management method based on automatic adjustment of processor nuclear number |
| CN102902333A (en) * | 2011-07-27 | 2013-01-30 | 鸿富锦精密工业（深圳）有限公司 | Power supply control circuit |
| CN103326567A (en) * | 2013-07-17 | 2013-09-25 | 合肥工业大学 | Switching converter delay control method and implementation device |
-
2014
- 2014-11-12 CN CN201410634087.8A patent/CN105653004A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000112756A (en) * | 1998-10-08 | 2000-04-21 | Toshiba Corp | Device and method for controlling cpu operation |
| CN1612088A (en) * | 2003-10-27 | 2005-05-04 | 松下电器产业株式会社 | Processor system, instruction sequence optimization device, and instruction sequence optimization program |
| CN101082823A (en) * | 2006-05-29 | 2007-12-05 | 华硕电脑股份有限公司 | Voltage regulator circuit having overcurrent protection |
| CN101345491A (en) * | 2008-05-30 | 2009-01-14 | 华硕电脑股份有限公司 | Frequency conversion multi-phase voltage regulator and its control method |
| CN102902333A (en) * | 2011-07-27 | 2013-01-30 | 鸿富锦精密工业（深圳）有限公司 | Power supply control circuit |
| CN102520782A (en) * | 2011-12-15 | 2012-06-27 | 江苏中科梦兰电子科技有限公司 | Power supply management method based on automatic adjustment of processor nuclear number |
| CN103326567A (en) * | 2013-07-17 | 2013-09-25 | 合肥工业大学 | Switching converter delay control method and implementation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180206 Address after: The 300457 Tianjin economic and Technological Development Zone Haiyun Street No. 80 Applicant after: Hongfujin Precision Electronics (Tianjin) Co., Ltd. Address before: 518109 Guangdong city of Shenzhen province Baoan District Longhua Town Industrial Zone tabulaeformis tenth East Ring Road No. 2 two Applicant before: Hongfujin Precise Industry (Shenzhen) Co., Ltd. Applicant before: Hon Hai Precision Industry Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160608 |