CN103676752A - Power front-end monitoring device - Google Patents
Power front-end monitoring device Download PDFInfo
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- CN103676752A CN103676752A CN201210338373.0A CN201210338373A CN103676752A CN 103676752 A CN103676752 A CN 103676752A CN 201210338373 A CN201210338373 A CN 201210338373A CN 103676752 A CN103676752 A CN 103676752A
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- power supply
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Abstract
The invention provides a power front-end monitoring device which is arranged in an electronic device and comprises a D-shaped flip-flop, a power switch and a power management controller. The D-shaped flip-flop comprises a first input terminal, a second input terminal and an output control terminal; when the first input terminal is at an enabling state, the output control terminal outputs starting signals; when the second input terminal is at the enabling state, the output control terminal outputs shutdown signals; the power switch is electrically connected with the first input terminal, and emits starting driving signals to the first input terminal when being pressed; and the power management controller is electrically connected with the power switch, the second input terminal and the output control terminal, emits shutdown driving signals to the second input terminal when detecting that shutdown operation is executed, is connected with a power supply after receiving the starting signals, and is disconnected with the power supply after receiving the shutdown signals.
Description
[technical field]
The present invention relates to a kind of power supply front end monitoring apparatus, particularly a kind of in electronic installation shutdown but also connect the power supply front end monitoring apparatus of power saving under power supply status.
[background technology]
Power saving refers to that electrical equipment relative consumption electric weight within the identical time is few.The electrical equipment of power saving electrical appliance power in the situation that of equal effect is low, and useful power is high.Power saving also refers to using electricity wisely, because generating needs resource, so want power saving in order to economize on resources, uses the electrical equipment of power saving, forms the good custom of saving.
Electricity saving method:
Rational utilization of electricity during paddy during 1, according to peak.
2, the plug of no electrical equipment pulls out, and reduces the use of converter simultaneously.
3, with walking with pass.Certainly preferably can overall arrangement, rationally make electrical appliance, do not want frequent switch.
4 if for power saving, can adopt other energy mode to substitute, as cooked without electric cooker, use gas-cooker instead.
5, can economize and economize, reduce the demand of electricity consumption.
Now in stressing the society of power saving economize on electricity, increasingly harsh to the requirement of Power Management Design.And energy loss under off-mode is regarded as a kind of invalid energy dissipation.Current most of electronic installation adopts the power source management controller IC monitoring power supply switch process power supplys such as EC, KBC, MCU or SIO to control, it is exactly that they are not occurred by the control of any signal that power source management controller IC has a maximum feature, as long as electronic installation accesses AC or battery case, power source management controller IC just starts power consumption.For example, user, after using computer, goes away after carrying out shutdown command, and the power supply of main frame is not thoroughly cut off to (pull up supply socket, from wiring board, thoroughly remove) for following the line of least resistance in system, and power source management controller IC just starts power consumption.
[summary of the invention]
It is a kind of in electronic installation shutdown but also connect the power supply front end monitoring apparatus of power saving under power supply status that fundamental purpose of the present invention is to provide.
The invention provides a kind of power supply front end monitoring apparatus, it is located in electronic installation, and described power supply front end monitoring apparatus comprises D type flip-flop, power switch, power source management controller, described D type flip-flop comprises first input end, the second input end and output control terminal; And when first input end is during in enabled status, output control terminal output starting-up signal; And when the second input end is during in enabled status, output control terminal output off signal; Described power switch is electrically connected described first input end, and described power switch sends start and drive signal to first input end when pressing, and now, first input end is in enabled status; Described power source management controller is electrically connected described power switch, the second input end and output control terminal, and described power source management controller sends shutdown while detecting execution power-off operation and drives signal to the second input end, now, the second input end is in enabled status, and power source management controller switches on power after receiving starting-up signal, deenergization after power source management controller reception off signal.
Especially, it is boost signal that described start drives signal, when described shutdown drives signal to be low level signal.
Especially, described the second input end is electrically connected CPU heat alarm end, and when CPU is overheated, CPU heat alarm end sends shutdown and drives signal to the second input end.
Especially, between described power switch and described first input end, be connected time delay and negative circuit.
Especially, between described power source management controller and the second input end, be connected anti-phase module.
Compared with prior art, deenergization after the off signal of power source management controller of the present invention second output terminal in receiving D type flip-flop, electronic installation shuts down but also connects under power supply status, the electric power of D type flip-flop is only provided, and no longer provide the electric power of power source management controller, the power consumption of D type flip-flop is less than the power consumption of power source management controller, therefore, and comparatively power saving.
[accompanying drawing explanation]
Fig. 1 is the circuit diagram of power supply front end monitoring apparatus of the present invention.
[embodiment]
Refer to shown in Fig. 1, the invention provides a kind of power supply front end monitoring apparatus, it is located in electronic installation, and described power supply front end monitoring apparatus comprises D type flip-flop 10, power switch 20, power source management controller 30, described D type flip-flop 10 comprises first input end 11, the second input end 12 and output control terminal 13; And when first input end 11 is during in enabled status, output control terminal 13 output starting-up signals; And when the second input end 12 is during in enabled status, output control terminal 13 output off signals; Described power switch 20 is electrically connected described first input end 11, and described power switch 20 sends start and drive signal to first input end 11 when pressing, and now, first input end 11 is in enabled status; Described power source management controller 30 is electrically connected described power switch 20, the second input end 12 and output control terminal 13, and described power source management controller 30 sends shutdown while detecting execution power-off operation and drives signal to the second input end 12, now, the second input end 12 is in enabled status, after receiving starting-up signal, described power source management controller 30 switches on power, deenergization after power source management controller 30 reception off signals.
In the present embodiment, it is boost signal that described start drives signal, when described shutdown drives signal to be low level signal.Described the second input end 12 is electrically connected CPU heat alarm end 60, and when CPU is overheated, CPU heat alarm end 60 sends shutdown and drives signal to the second input end 12.Between described power switch 20 and described first input end 11, be connected time delay and negative circuit 40.Between described power source management controller 30 and the second input end 12, be connected anti-phase module 50.
During start, power switch 20 is pressed, and the pulse that produces high level → low level → high level, output low level → high level → low level pulse more stably after time delay and negative circuit 40, first input end 11 is after receiving the boost signal of low level → high level, by output control terminal 13 output starting-up signals, to power source management controller 30, after receiving starting-up signal, power source management controller 30 switched on power.
Under open state, described power source management controller 30 sends shutdown while detecting execution power-off operation and drives signal to the second input end 12, for example, power switch 20 is pressed to carry out power-off operation,, power source management controller 30 is detected while producing the pulse of high level → low level → high level to power switch 20, send high level signal to anti-phase module 50, after anti-phase module 50 is anti-phase, output low level signal is to the second input end 12, and power source management controller 30 receives deenergization after off signals.Power source management controller 30 is detected to electronic installation and is sent shutdown command when carrying out power-off operation by software, send high level signal to anti-phase module 50, after anti-phase module 50 is anti-phase, output low level signal is to the second input end 12, and power source management controller 30 receives deenergization after off signals.
Deenergization after the off signal of power source management controller of the present invention second output terminal 12 in receiving D type flip-flop, electronic installation shuts down but also connects under power supply status, the electric power of D type flip-flop 10 is only provided, and no longer provide the electric power of power source management controller 30, the power consumption of D type flip-flop 10 is less than the power consumption of power source management controller 30, therefore, comparatively power saving.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (5)
1. a power supply front end monitoring apparatus, it is located in electronic installation, it is characterized in that described power supply front end monitoring apparatus comprises:
D type flip-flop, it comprises first input end, the second input end and output control terminal; And when first input end is during in enabled status, output control terminal output starting-up signal; And when the second input end is during in enabled status, output control terminal output off signal;
Power switch, it is electrically connected described first input end, and described power switch sends start and drive signal to first input end when pressing, and now, first input end is in enabled status;
Power source management controller, it is electrically connected described power switch, the second input end and output control terminal, and described power source management controller sends shutdown while detecting execution power-off operation and drives signal to the second input end, now, the second input end is in enabled status, and power source management controller was connected power supply after receiving starting-up signal, deenergization after power source management controller reception off signal.
2. power supply front end monitoring apparatus according to claim 1, is characterized in that: it is boost signal that described start drives signal, when described shutdown drives signal to be low level signal.
3. power supply front end monitoring apparatus according to claim 1, is characterized in that: described the second input end is electrically connected CPU heat alarm end, and when CPU is overheated, CPU heat alarm end sends shutdown and drives signal to the second input end.
4. power supply front end monitoring apparatus according to claim 1, is characterized in that: between described power switch and described first input end, be connected time delay and negative circuit.
5. power supply front end monitoring apparatus according to claim 1, is characterized in that: between described power source management controller and the second input end, be connected anti-phase module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210338373.0A CN103676752A (en) | 2012-09-13 | 2012-09-13 | Power front-end monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210338373.0A CN103676752A (en) | 2012-09-13 | 2012-09-13 | Power front-end monitoring device |
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| Publication Number | Publication Date |
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| CN103676752A true CN103676752A (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210338373.0A Pending CN103676752A (en) | 2012-09-13 | 2012-09-13 | Power front-end monitoring device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1913350A (en) * | 2005-08-08 | 2007-02-14 | 晶豪科技股份有限公司 | Pulse generator and pulse generating method |
| CN201789476U (en) * | 2009-12-30 | 2011-04-06 | 中兴通讯股份有限公司 | Pulse generator |
| CN102136791A (en) * | 2010-01-22 | 2011-07-27 | 环旭电子股份有限公司 | Power supply control circuit |
| CN201945944U (en) * | 2010-12-31 | 2011-08-24 | 金宝电子工业股份有限公司 | Power-supply control circuit, power-supply control unit and portable electronic device thereof |
| CN102402269A (en) * | 2011-10-28 | 2012-04-04 | 徐银生 | Intelligent fully-automatic on-off and outage protector of computer and accessory equipment of computer |
| CN202815496U (en) * | 2012-09-20 | 2013-03-20 | 昆达电脑科技(昆山)有限公司 | Power supply front-end monitoring device |
-
2012
- 2012-09-13 CN CN201210338373.0A patent/CN103676752A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1913350A (en) * | 2005-08-08 | 2007-02-14 | 晶豪科技股份有限公司 | Pulse generator and pulse generating method |
| CN201789476U (en) * | 2009-12-30 | 2011-04-06 | 中兴通讯股份有限公司 | Pulse generator |
| CN102136791A (en) * | 2010-01-22 | 2011-07-27 | 环旭电子股份有限公司 | Power supply control circuit |
| CN201945944U (en) * | 2010-12-31 | 2011-08-24 | 金宝电子工业股份有限公司 | Power-supply control circuit, power-supply control unit and portable electronic device thereof |
| CN102402269A (en) * | 2011-10-28 | 2012-04-04 | 徐银生 | Intelligent fully-automatic on-off and outage protector of computer and accessory equipment of computer |
| CN202815496U (en) * | 2012-09-20 | 2013-03-20 | 昆达电脑科技(昆山)有限公司 | Power supply front-end monitoring device |
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Application publication date: 20140326 |