CN102621908A - High-reliability low-consumption control circuit and control method - Google Patents
High-reliability low-consumption control circuit and control method Download PDFInfo
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- CN102621908A CN102621908A CN2012100974620A CN201210097462A CN102621908A CN 102621908 A CN102621908 A CN 102621908A CN 2012100974620 A CN2012100974620 A CN 2012100974620A CN 201210097462 A CN201210097462 A CN 201210097462A CN 102621908 A CN102621908 A CN 102621908A
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Abstract
The invention relates to high-reliability low-power-consumption control circuit and control method. The circuit comprises three input control signal input circuits and a power source control signal output circuit. In the power source control signal output circuit, the input ends and the output ends of two NAND gates U1, U2 are connected in a cross way to form a basic RS trigger. When the system is started, the point C of the basic RS trigger remains a high output level, a triode Q1 remains open, and a control signal POW_EN is a low level. When one of the three input control signal input circuits receives the signal, a level signal is input to the basic RS trigger, and the basic RS trigger outputs a power source control signal and remains output state. The invention has the advantages that the response success rate of electronic equipment to poor quality of input control signals is increased, and no control signal is needed to meet the delay time required by device opening or closing.
Description
Technical field
The present invention relates to the power consumption control field of electronic equipment, especially a kind of low power consumpting controling circuit of high reliability and control method.
Background technology
In the mimic channel, the variation of voltage and current is not a transient state, but the process of a gradual change then exists rise time and fall time.In conductive process, like passive devices such as electric capacity, inductance, can produce inhibition, owing to the reason of these devices can produce longer time delay to the variation of electric current and voltage.
Components and parts all need a period of time from the off working state to the duty, like metal-oxide-semiconductor, because the existence of raceway groove then has ON time.IC-components is made up of more components and parts, then needs the longer state exchange time.Some electronic equipments be not in running order always in, but only in needs work.So can close or dormancy when not needing work, to reduce power consumption.
More existing power consumption control methods are done simple switch control to power supply, and outside input control signal is done switch motion to supply module, reaches the purpose of the reduction power consumption of the then power down that works on power, do not work.After equipment gets into park mode, through the external signal input, wake-up device, with the reduction power consumption, but reliability is not high.
Control signal must satisfy the opening time of device; Signal fluctuation can reduce the unlatching success ratio; Cut-in voltage does not satisfy condition fully and can not make device get into duty.When communication signal was imported as control signal, circuit received a string waveform, and the time delay of high-low level is all very short, directly did control signal input, and then the success ratio waken up of equipment is not high.The level of a string waveform is not enough time delay, can not successful opening device, and in the time of must receiving a string waveform that is enough to opening device by the time, opening device just is so the sensitivity of device responds communication wake-up signal is not high enough.Existing communication waken system is through a timing wake-up module, and timing wake-up MCU receives communication signal, and the shortcoming of this mode is in the time period of MCU dormancy, can not in time respond communication signal, and is as shown in Figure 1.Like the button input control signal, the level fluctuation that the button time falls short of or button causes all can make device can not get into duty.Like the power control circuit among Fig. 2, button time palpus long enough is imported stable high level ability turn-on control circuit, starting outfit.
Summary of the invention
The object of the invention will solve the deficiency that above-mentioned technology exists just, and a kind of low power consumpting controling circuit and control method of high reliability are provided.
The present invention solves the technical scheme that its technical matters adopts: the low power consumpting controling circuit of this high reliability; This circuit is made up of three input control signal input circuits and power control signal output circuit, and wherein the input control signal input circuit comprises button power on signal input circuit, communication wake-up signal input circuit and power-off signal input circuit; In the power control signal output circuit, basic rest-set flip-flop is formed in two Sheffer stroke gate U1, the input end of U2, output terminal cross connections.
The control method of the low power consumpting controling circuit of high reliability of the present invention, during system start-up, the C point of basic rest-set flip-flop keeps the output high level, and triode Q1 remain off, control signal POW_EN are low level; When three input control signal input circuits have one to receive signal, then there is level signal to be input in the basic rest-set flip-flop, the out-put supply control signal, and keep output state.
Further, when input button power on signal,, the low level input is arranged as long as push button, trigger basic rest-set flip-flop, the out-put supply control signal, and keep output state; No key press delays time requirement, the level fluctuation that button causes can not influence the output of power control signal yet.When receiving the communication wake-up signal, just can encourage communication wake-up circuit output signal as long as receive several wave form varies, trigger basic rest-set flip-flop, the out-put supply control signal, and keep output state; Sensitive to the response of communication wake-up signal, there is not the requirement of long-time signal retention time.When the power-off signal input circuit receives a high level signal, trigger power control signal output, and keep output state.
The effect that the present invention is useful is: the present invention solve electronic equipment insensitive to control signal response, do not respond, control signal is of poor quality then not to be responded, control signal has the requirement of minimum hold time, and short problem of input/output control signal retention time.Improve electronic equipment to the ropy power that responds into of input control signal; Need not control signal satisfying device opens or closes desired time delay.
Description of drawings
Fig. 1 is that prior art timing wake-up system connects synoptic diagram;
Fig. 2 is a prior art power control circuit synoptic diagram;
Fig. 3 is that the low power consumpting controling circuit of high reliability of the present invention connects synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
As shown in Figure 3; The low power consumpting controling circuit of this high reliability of the present invention; Be made up of three input control signal input circuits and power control signal output circuit, wherein the input control signal input circuit comprises button power on signal input circuit, communication wake-up signal input circuit and power-off signal input circuit; In the power control signal output circuit, basic rest-set flip-flop is formed in two Sheffer stroke gate U1, the input of U2, output terminal cross connections.
The control method of the low power consumpting controling circuit of high reliability of the present invention, during system start-up, the C point of basic rest-set flip-flop keeps the output high level, and triode Q1 remain off, control signal POW_EN are low level; When three input control signal input circuits have one to receive signal, then there is level signal to be input in the basic rest-set flip-flop, the out-put supply control signal, and keep output state.Particularly, when input button power on signal, trigger basic rest-set flip-flop, the out-put supply control signal, and keep output state; When receiving the communication wake-up signal, excitation communication wake-up circuit output signal triggers basic rest-set flip-flop, the out-put supply control signal, and keep output state; When the power-off signal input circuit receives a high level signal, trigger power control signal output, and keep output state.
System start-up duty: Sheffer stroke gate U1, U2 form rest-set flip-flop, and during system start-up, output pin (C) is a high level; 1,2 pin of Sheffer stroke gate U4 are low level; 3 pin (B) the output high level of U4,1 pin of U1 is high level (A), rest-set flip-flop keeps high level output; Triode Q1 remain off, power control signal output circuit output low level.
The signal input circuit principle of work:
Button power on signal input circuit: (A) output high level during system start-up, when pushing button, C4 discharges electric charge, the positive pole of diode D4 generation low level, i.e. button power on signal input circuit output low level, A point step-down level.
Communication wake-up signal input circuit: (A) output high level during system start-up, when receiving communication signal, the D3 positive pole uprises level; Diode D3 conducting; Triode Q1 base stage uprises level, Q1 conducting, collector step-down level; The wake-up signal input circuit output low level of promptly communicating by letter, A point step-down level.
The power-off signal input circuit: (B) output high level during system start-up, when the power-off signal that receives high level, diode D5 conducting; The base stage of triode Q2 uprises level, Q2 conducting, collector output low level; The 2 pin input low levels of Sheffer stroke gate U3; 3 pin output high level, 1, the 2 pin input high levels of Sheffer stroke gate U4,3 pin (B) output low level.
Power control signal output circuit principle of work: (C) keeps the output high level during system start-up, triode Q1 remain off, and control signal (POW_EN) is a low level.When the input button powers on or during the communication wake-up signal, triggers the C point of rest-set flip-flop and export high level, the Q1 conducting, control signal (POW_EN) is a high level; When the input power-off signal, the C point output high level of rest-set flip-flop, control signal (POW_EN) step-down level.
In the power control signal output circuit, two Sheffer stroke gates are formed basic rest-set flip-flop.Truth table is following:
Table-1 power control signal output circuit truth table
Terminological interpretation:
Basic rest-set flip-flop:, can constitute basic rest-set flip-flop the input of two Sheffer stroke gates, output terminal cross connection.Have put 1, put 0 and state keep function.
Sensitivity: equipment is to the speed and the success ratio of input signal response.
Power consumption: the power that equipment work consumes.
Except that the foregoing description, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (3)
1. the low power consumpting controling circuit of a high reliability; It is characterized in that: this circuit is made up of three input control signal input circuits and power control signal output circuit, and wherein the input control signal input circuit comprises button power on signal input circuit, communication wake-up signal input circuit and power-off signal input circuit; In the power control signal output circuit, basic rest-set flip-flop is formed in two Sheffer stroke gate U1, the input end of U2, output terminal cross connections.
2. control method that adopts the low power consumpting controling circuit of high reliability as claimed in claim 1, it is characterized in that: during system start-up, the C point of basic rest-set flip-flop keeps exporting high level, and triode Q1 remain off, control signal POW_EN are low level; When three input control signal input circuits have one to receive signal, then there is level signal to be input in the basic rest-set flip-flop, the out-put supply control signal, and keep output state.
3. the low power consumption control method of high reliability according to claim 2 is characterized in that: when input button power on signal, trigger basic rest-set flip-flop, out-put supply control signal, and maintenance output state; When receiving the communication wake-up signal, excitation communication wake-up circuit output signal triggers basic rest-set flip-flop, the out-put supply control signal, and keep output state; When the power-off signal input circuit receives a high level signal, trigger power control signal output, and keep output state.
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| CN2012100974620A CN102621908A (en) | 2012-04-01 | 2012-04-01 | High-reliability low-consumption control circuit and control method |
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| CN2012100974620A CN102621908A (en) | 2012-04-01 | 2012-04-01 | High-reliability low-consumption control circuit and control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106293004A (en) * | 2016-08-08 | 2017-01-04 | 杭州晟元数据安全技术股份有限公司 | The chip system of a kind of novel raising system stability and method |
| CN109448198A (en) * | 2018-12-18 | 2019-03-08 | 深圳市铁证科技有限公司 | A kind of face fingerprint recognition intelligent door lock control system |
| CN109888879A (en) * | 2019-03-22 | 2019-06-14 | 威海优微科技有限公司 | A kind of mobile power source circuit Rouser |
| CN112865780A (en) * | 2021-01-11 | 2021-05-28 | 深圳市康冠商用科技有限公司 | Power supply control circuit with control state storage function and monitor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060092671A1 (en) * | 2004-11-02 | 2006-05-04 | Matsushita Electric Industrial Co., Ltd. | Semiconductor device for controlling switching power supply and switching power supply unit using the same |
| CN101466002A (en) * | 2007-12-21 | 2009-06-24 | 康佳集团股份有限公司 | Standby and start-up method controlled by input signal |
| CN101841187A (en) * | 2010-05-28 | 2010-09-22 | 威胜集团有限公司 | Power management power supply system for electronic electric energy meter |
| US20100293395A1 (en) * | 2009-05-18 | 2010-11-18 | Shenzhen Futaihong Precision Industry Co., Ltd. | Central processing unit start-up circuit of portable electronic devices |
| CN201741095U (en) * | 2010-05-26 | 2011-02-09 | 青岛海信电器股份有限公司 | Signal state transition circuit, reset circuit and electronic equipment |
| CN102394625A (en) * | 2011-10-20 | 2012-03-28 | 何林 | Touch switching circuit |
-
2012
- 2012-04-01 CN CN2012100974620A patent/CN102621908A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060092671A1 (en) * | 2004-11-02 | 2006-05-04 | Matsushita Electric Industrial Co., Ltd. | Semiconductor device for controlling switching power supply and switching power supply unit using the same |
| CN1770612A (en) * | 2004-11-02 | 2006-05-10 | 松下电器产业株式会社 | Semiconductor device for controlling switching power supply and switching power supply unit using the same |
| CN101466002A (en) * | 2007-12-21 | 2009-06-24 | 康佳集团股份有限公司 | Standby and start-up method controlled by input signal |
| US20100293395A1 (en) * | 2009-05-18 | 2010-11-18 | Shenzhen Futaihong Precision Industry Co., Ltd. | Central processing unit start-up circuit of portable electronic devices |
| CN101893925A (en) * | 2009-05-18 | 2010-11-24 | 深圳富泰宏精密工业有限公司 | Start circuit |
| CN201741095U (en) * | 2010-05-26 | 2011-02-09 | 青岛海信电器股份有限公司 | Signal state transition circuit, reset circuit and electronic equipment |
| CN101841187A (en) * | 2010-05-28 | 2010-09-22 | 威胜集团有限公司 | Power management power supply system for electronic electric energy meter |
| CN102394625A (en) * | 2011-10-20 | 2012-03-28 | 何林 | Touch switching circuit |
Non-Patent Citations (1)
| Title |
|---|
| 彭克发，冯思泉: "《数字电子技术》", 31 December 2011, 北京理工大学出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106293004A (en) * | 2016-08-08 | 2017-01-04 | 杭州晟元数据安全技术股份有限公司 | The chip system of a kind of novel raising system stability and method |
| CN106293004B (en) * | 2016-08-08 | 2018-12-07 | 杭州晟元数据安全技术股份有限公司 | A kind of chip system and method for novel raising system stability |
| CN109448198A (en) * | 2018-12-18 | 2019-03-08 | 深圳市铁证科技有限公司 | A kind of face fingerprint recognition intelligent door lock control system |
| CN109888879A (en) * | 2019-03-22 | 2019-06-14 | 威海优微科技有限公司 | A kind of mobile power source circuit Rouser |
| CN112865780A (en) * | 2021-01-11 | 2021-05-28 | 深圳市康冠商用科技有限公司 | Power supply control circuit with control state storage function and monitor |
| CN112865780B (en) * | 2021-01-11 | 2022-11-11 | 深圳市康冠商用科技有限公司 | Power supply control circuit with control state storage function and monitor |
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Address after: The city of Hangzhou in West Zhejiang province 311121 No. 998 Building 9 East Sea Park Applicant after: Hangzhou Shengyuan Chip Technique Co., Ltd. Address before: 310012, room 17, building 176, 203 Tianmu Mountain Road, Hangzhou, Zhejiang, Xihu District Applicant before: Hangzhou Shengyuan Chip Technique Co., Ltd. |
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Application publication date: 20120801 |