CN104702258B - With establishing electromechanical source switch on controllable function by cable - Google Patents

With establishing electromechanical source switch on controllable function by cable Download PDF

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CN104702258B
CN104702258B CN201510126737.2A CN201510126737A CN104702258B CN 104702258 B CN104702258 B CN 104702258B CN 201510126737 A CN201510126737 A CN 201510126737A CN 104702258 B CN104702258 B CN 104702258B
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power
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CN104702258A (en
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曲保章
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曲保章
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Abstract

The present invention relates to establishing electromechanical source switch by cable on controllable function, the problem of electrical equipment gate-controlled switch machine can effectively be solved, its solve technical scheme be, including housing and mounted in housing interior circuit board, power input pin and button S1 are provided with housing, equipped with control circuit on circuit board, control circuit includes single-chip microcomputer, FET and DC/DC modules, and described single-chip microcomputer can export high level or low level according to the input signal control input pin of input pin;In use, the power input pin on housing is connected with using equipment power supply output end;Structure novel and unique of the present invention, circuit advantages of simple, easily production, cost is low, realizes electricity and automatically opens up power supply, a key switch power supply, energy consumption is small, and easy to use, effect is good, and 2 to 5 times of longer cell life is can be under ideal case, is the innovation on power switch.

Description

With establishing electromechanical source switch on controllable function by cable
Technical field
The present invention relates to a kind of with establishing electromechanical source switch by cable on controllable function, the electric Auto Power On on the various needs Circuit or equipment among, be particularly applicable in the higher electronics field of security, such as vehicle electric field.
Background technology
At present, on various needs in the equipment of electric Auto Power On, the method generally used is by the power import of equipment Directly be connected on power supply output end, such power supply once connect equipment can be to work on power, but such be the drawbacks of do It can not realize and be shut down in the case where switching on power by button.Switched there is a method in which can realize and be realized by button Machine, but this method needs equipment ceaselessly to gather the state of switching on and shutting down button, even if this requires equipment in the power-offstate Also the detection work of switching on and shutting down button is continued, it is necessary to certain power consumption, very unfavorable for battery powered equipment, it is long The power shortage of battery is easily caused if phase.Develop a kind of with electromechanical source switch is established by cable on controllable function, be art technology Personnel are concerned about problem.
The content of the invention
For above-mentioned situation, to overcome the defect of prior art, the purpose of the present invention, which is just to provide one kind, has controllable work( Electromechanical source switch is established by cable on energy, the problem of can effectively solving electrical equipment gate-controlled switch machine.
The technical scheme that the present invention is solved is, including housing and to be provided with power supply on housing interior circuit board, housing defeated Enter equipped with control circuit on pin and button S1, circuit board, control circuit includes single-chip microcomputer, FET and DC/DC modules, single The input pin of piece machine is connected with resistance R4 one end and resistance R5 one end respectively, resistance R5 other end ground connection, resistance R4 The other end be connected respectively with the first DC/DC modules U1 output pin and diode D5 positive pole, the first DC/DC modules U1's Grounding pin is grounded, the first DC/DC module U1 input pins through button S1 negative poles respectively with diode D1, diode D2 it is negative Pole, the positive pole for having electrode capacitance C1, triode Q1 colelctor electrode, the drain electrode of resistance R3 one end and FET Q2 are connected, two poles Pipe D1 positive pole is connected with the power input pin on housing, diode D2 positive pole one end respectively with resistance R1, resistance R2 One end, FET Q3 source electrode and the 2nd DC/DC modules U2 grounding pin be connected, end ground connection altogether, resistance R1's is another End is connected to electrode capacitance C1 negative pole and triode Q1 base stage respectively, and the resistance R2 other end connects triode Q1 transmitting respectively The grid of pole, diode D3 negative pole and FET Q3, FET the Q3 other end and the field that drain respectively with resistance R3 Effect pipe Q2 grid is connected, and FET Q2 source electrode is connected with the 2nd DC/DC modules U2 input pin, the 2nd DC/DC Module U2 output pin is connected with diode D4 positive pole, and diode D4 negative pole connects the energization pins and two of single-chip microcomputer respectively Pole pipe D5 negative pole, the output pin of single-chip microcomputer is connected with diode D3 positive pole, and described single-chip microcomputer can be according to single-chip microcomputer Input pin Pi input signal control single chip computer output pin Po output high level or low level;In use, by housing On power input pin be connected with using equipment power supply output end;
On establish the process of machine by cable and be:
When switching on power at the power input pin on housing from off-position, electric capacity C1 is in charged state, control Triode Q1 is turned on, and then turns on FET Q3, and after FET Q3 conductings, FET Q2 grids are in low level shape State, turns on FET Q2, switches on power, powered after changing voltage through the 2nd DC/DC modules U2 into single-chip microcomputer, on single-chip microcomputer High level is exported through diode D3 by the output pin Po of single-chip microcomputer after electricity, makes FET Q3, Q2 continue to turn on shape Electric start process in state, completion;
The process of key switch machine is:
During start, button S1 is pressed, the first DC/DC modules U1 work, is provided for single-chip microcomputer on working power, single-chip microcomputer High level is exported through diode D3 by the output pin of single-chip microcomputer after electricity, FET Q3, Q2 is continued to conducting state, Electric start process in completion;
During shutdown, button S1 is pressed, the first DC/DC modules U1 work, and the first DC/DC module U1 output voltages are through resistance High level signal is provided for single-chip microcomputer after R4, R5 partial pressure, is sent into inside single-chip microcomputer and is handled by the input pin Pi of single-chip microcomputer, Single-chip microcomputer exports low level signal by output pin Po, makes FET through diode D3 after confirming that off signal is effective Q3, Q2 are turned off, and complete button shutdown process.
Structure novel and unique of the present invention, circuit advantages of simple, easily production, cost is low, realize electricity automatically open up power supply, One key switch power supply, energy consumption is small, easy to use, and effect is good, and 2 to 5 times of longer cell life is can be under ideal case, is power supply Innovation on switch.
Brief description of the drawings
Fig. 1 is circuit theory diagrams of the invention.
Embodiment
The embodiment of the present invention is described in further detail below in conjunction with accompanying drawing.
Provided by Fig. 1, the present invention includes housing and mounted in housing interior circuit board, and described housing is square or circle;Shell It is provided with body on power input pin and button S1, circuit board equipped with control circuit, control circuit includes single-chip microcomputer, field-effect Pipe and DC/DC modules, the input pin of single-chip microcomputer are connected with resistance R4 one end and resistance R5 one end respectively, and resistance R5's is another One end is grounded, and the resistance R4 other end is connected with the first DC/DC modules U1 output pin and diode D5 positive pole respectively, the One DC/DC modules U1 grounding pin ground connection, the first DC/DC module U1 input pins are negative with diode D1 respectively through button S1 Pole, diode D2 negative pole, the positive pole for having electrode capacitance C1, triode Q1 colelctor electrode, resistance R3 one end and FET Q2 Drain electrode be connected, diode D1 positive pole is connected with the power input pin on housing, diode D2 positive pole respectively with resistance R1 one end, resistance R2 one end, FET Q3 source electrode and the 2nd DC/DC modules U2 grounding pin are connected, altogether termination Ground, the resistance R1 other end is connected to electrode capacitance C1 negative pole and triode Q1 base stage respectively, and the resistance R2 other end connects respectively The grid of triode Q1 emitter stage, diode D3 negative pole and FET Q3, FET Q3 drain electrode respectively with resistance The R3 other end is connected with FET Q2 grid, FET Q2 source electrode and the 2nd DC/DC modules U2 input pin It is connected, the 2nd DC/DC modules U2 output pin is connected with diode D4 positive pole, and diode D4 negative pole connects single-chip microcomputer respectively Energization pins and diode D5 negative pole, the output pin of single-chip microcomputer is connected with diode D3 positive pole, described single-chip microcomputer High level or low level can be exported according to the output pin Po of the input pin Pi of single-chip microcomputer input signal control single chip computer; In use, the power input pin on housing is connected with using equipment power supply output end;
On establish the process of machine by cable and be:
When switching on power at the power input pin on housing from off-position, electric capacity C1 is in charged state, control Triode Q1 is turned on, and then turns on FET Q3, and after FET Q3 conductings, FET Q2 grids are in low level shape State, turns on FET Q2, switches on power, powered after changing voltage through the 2nd DC/DC modules U2 into single-chip microcomputer, on single-chip microcomputer High level is exported through diode D3 by the output pin Po of single-chip microcomputer after electricity, makes FET Q3, Q2 continue to turn on shape Electric start process in state, completion;
The process of key switch machine is:
During start, button S1 is pressed, the first DC/DC modules U1 work, is provided for single-chip microcomputer on working power, single-chip microcomputer High level is exported through diode D3 by the output pin of single-chip microcomputer after electricity, FET Q3, Q2 is continued to conducting state, Electric start process in completion;
During shutdown, button S1 is pressed, the first DC/DC modules U1 work, and the first DC/DC module U1 output voltages are through resistance High level signal is provided for single-chip microcomputer after R4, R5 partial pressure, is sent into inside single-chip microcomputer and is handled by the input pin Pi of single-chip microcomputer, Single-chip microcomputer exports low level signal by output pin Po, makes FET through diode D3 after confirming that off signal is effective Q3, Q2 are turned off, and complete button shutdown process.
Described electric capacity C1, resistance R1, R2, R3, triode Q1, FET Q2, Q3 constitute electrifying startup circuit, monolithic Machine and diode D3 constitute power control circuit, and the first DC/DC modules U1 and the 2nd DC/DC modules U2 are used for Power convert, two Pole pipe D4, D5 is as the isolating diode between two DC/DC modules, and resistance R4, R5 are detected for button, when the power supply on housing When switching on power at input pin from off-position, electric capacity C1 is in charged state, the Q1 conductings of control triode, and then imitates field Should pipe Q3 conducting, FET Q3 conducting after, FET Q2 grids be in low level state, make FET Q2 turn on, connect Energization source, powers, the output on single-chip microcomputer after electricity by single-chip microcomputer is drawn after changing voltage through the 2nd DC/DC modules U2 into single-chip microcomputer Pin Po exports high level through diode D3, FET Q3, Q2 is continued to electric start process in conducting state, completion;Profit Input power counnter attack connection function is realized with diode D1, D2 one-way conduction effect;
Described button S1 is commercially available key switch, and described key switch normality is in the position of initial free state On, simply just it is transformed into second of state under external force when requiring(Position), when external force once removing, due to spring Effect, switch be just returned to initial position, i.e., connect, disconnected during release when button S1 is pressed;
It is described high level or low level to be exported according to the input signal control input pin of input pin, so that with two Pole pipe D3 constitutes power control circuit, and the single-chip microcomputer is commercially available prod, such as model C8051F040, C8051F410, AT8052 Or the monolithic of all polytypics of W77E58/516 etc. could be used for the present invention;This electricity consumption can also be monitored in real time by single-chip microcomputer to set The working condition of standby other application circuit, if circuit breaks down, power supply will export low electricity by single-chip microcomputer output pin Po Ordinary mail number, FET Q3, Q2 are turned off through diode D3, and realization automatically shuts power off function;
The first described DC/DC modules and the 2nd DC/DC modules U2 are commercially available DC/DC converters, can be solid by one Fixed DC voltage conversion is variable DC voltage, also known as dc chopper.
The present invention sets the change-over circuit of two-way DC/DC module compositions in circuit, is responsible for key switch machine all the way, all the way Machine is established by cable on being responsible for.The power input pin of the present invention is connected with using equipment power supply output end, electrifying startup after upper electricity Circuit makes power supply turn within a certain period of time to power to single-chip microcomputer, and single-chip microcomputer controls power supply persistently to lead after starting by output pin It is logical.Single-chip microcomputer input pin detection switch state, has button to press, then pressing situation according to button judges whether that performing power supply cuts Disconnected action.Also normal boot-strap can be carried out by button down state after shutdown.
By above-mentioned situation it should be apparent that the present invention has following functions:1st, upper electricity automatically opens up power supply;2nd, a key Switching Power Supply;3rd, failure is automatically shut power off;4th, power supply, itself not power consumption of circuit are thoroughly closed;5th, with input power counnter attack Connection function.Structure novel and unique of the present invention, circuit advantages of simple, easily production, cost is low, realize electricity automatically open up power supply, One key switch power supply, energy consumption is small, easy to use, and effect is good, and 2 to 5 times of longer cell life is can be under ideal case, is power supply Innovation on switch, there is good social and economic benefit.
Applicant is it is noted that each part all in the application is existing commercially available prod(Known technology), this hair Bright innovation is combining their science, constitutes with establishing by cable in electromechanical source switch, the application on innovative The only a kind of embodiment pointed out is stated, the protection domain of the application is not meant to limit, it is every with equivalent or equivalent substitute Means make the protection domain that the application is belonged to technical scheme substantially identical technical scheme.

Claims (3)

1. a kind of with establishing electromechanical source switch on controllable function by cable, including housing and set on housing interior circuit board, housing Be equipped with power input pin and button S1, it is characterised in that on circuit board equipped with control circuit, control circuit include single-chip microcomputer, FET and DC/DC modules, the input pin Pi of single-chip microcomputer are connected with resistance R4 one end and resistance R5 one end respectively, electricity Hinder R5 other end ground connection, the resistance R4 other end respectively with the first DC/DC modules U1 output pin and diode D5 just Extremely it is connected, the first DC/DC modules U1 grounding pin ground connection, the first DC/DC module U1 input pins are through button S1 respectively with two Pole pipe D1 negative pole, diode D2 negative pole, the positive pole for having electrode capacitance C1, triode Q1 colelctor electrode, resistance R3 one end and FET Q2 drain electrode is connected, and diode D1 positive pole is connected with the power input pin on housing, diode D2 positive pole One end respectively with resistance R1, resistance R2 one end, FET Q3 source electrode and the 2nd DC/DC modules U2 grounding pin phase Even, end is grounded altogether, and the resistance R1 other end is connected to electrode capacitance C1 negative pole and triode Q1 base stage respectively, and resistance R2's is another End connects the grid of triode Q1 emitter stage, diode D3 negative pole and FET Q3, FET Q3 drain electrode point respectively It is not connected with the resistance R3 other end and FET Q2 grid, FET Q2 source electrode and the 2nd DC/DC modules U2's Input pin is connected, and the 2nd DC/DC modules U2 output pin is connected with diode D4 positive pole, diode D4 negative pole difference The energization pins of single-chip microcomputer and diode D5 negative pole are connect, the output pin Po of single-chip microcomputer is connected with diode D3 positive pole, institute The single-chip microcomputer stated can export high electricity according to the output pin Po of the input pin Pi of single-chip microcomputer input signal control single chip computer Flat or low level;In use, the power input pin on housing is connected with using equipment power supply output end;
On establish the process of machine by cable and be:
When switching on power at the power input pin on housing from off-position, electric capacity C1 is in charged state, controls three poles Pipe Q1 is turned on, and then turns on FET Q3, and after FET Q3 conductings, FET Q2 grids are in low level state, FET Q2 is turned on, switches on power, is powered after changing voltage through the 2nd DC/DC modules U2 into single-chip microcomputer, it is electric on single-chip microcomputer High level is exported through diode D3 by the output pin Po of single-chip microcomputer afterwards, FET Q3, Q2 is continued to conducting state, Electric start process in completion;
The process of key switch machine is:
During start, button S1 is pressed, the first DC/DC modules U1 work, is provided for single-chip microcomputer on working power, single-chip microcomputer after electricity High level is exported through diode D3 by the output pin Po of single-chip microcomputer, FET Q3, Q2 is continued to conducting state, it is complete Cheng Shang electricity start process;
During shutdown, button S1 is pressed, the first DC/DC modules U1 work, the first DC/DC module U1 output voltages through resistance R4, High level signal is provided for single-chip microcomputer after R5 partial pressures, is sent into inside single-chip microcomputer and is handled by the input pin Pi of single-chip microcomputer, it is single Piece machine exports low level signal by the output pin Po of single-chip microcomputer, makes field through diode D3 after confirming that off signal is effective Effect pipe Q3, Q2 are turned off, and complete button shutdown process.
2. it is according to claim 1 with establishing electromechanical source switch by cable on controllable function, it is characterised in that described electric capacity C1, resistance R1, R2, R3, triode Q1, FET Q2, Q3 constitute electrifying startup circuit, and single-chip microcomputer and diode D3 constitute electricity Source control circuit, the first DC/DC modules U1 and the 2nd DC/DC modules U2 are used for Power convert, and diode D4, D5 are used as two DC/ Isolating diode between DC modules, resistance R4, R5 are detected for button, from power-off shape at the power input pin on housing When state switches on power, electric capacity C1 is in charged state, the Q1 conductings of control triode, and then turns on FET Q3, field-effect After pipe Q3 conductings, FET Q2 grids are in low level state, turn on FET Q2, switch on power, through the 2nd DC/DC Module U2 is changed after voltage and powered into single-chip microcomputer, and the output pin Po on single-chip microcomputer after electricity by single-chip microcomputer exports high level through two Pole pipe D3, makes FET Q3, Q2 continue to electric start process in conducting state, completion.
3. it is according to claim 1 with establishing electromechanical source switch by cable on controllable function, it is characterised in that described housing For square or circle.
CN201510126737.2A 2015-03-23 2015-03-23 With establishing electromechanical source switch on controllable function by cable Active CN104702258B (en)

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CN105045169B (en) * 2015-06-18 2017-09-29 江苏辰汉电子科技有限公司 A kind of Multifunction open shutdown circuit and method for start-up and shutdown
CN107465340A (en) * 2017-08-11 2017-12-12 昊翔电能运动科技(昆山)有限公司 Power-supply management system and method
CN108988300B (en) * 2018-06-11 2020-04-03 山东超越数控电子股份有限公司 Self-power-off circuit structure of notebook power circuit and control method
CN110664282A (en) * 2018-07-03 2020-01-10 九阳股份有限公司 Portable food processor and control method

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JPH09149550A (en) * 1995-11-17 1997-06-06 Ricoh Co Ltd Power supply
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CN102662345A (en) * 2012-05-31 2012-09-12 青岛海信电器股份有限公司 Zero-power-consumption standby circuit
CN103345177A (en) * 2013-05-30 2013-10-09 江苏友奥电器有限公司 Zero-power-consumption standby control circuit of household appliances and control method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09149550A (en) * 1995-11-17 1997-06-06 Ricoh Co Ltd Power supply
CN201159850Y (en) * 2008-01-29 2008-12-03 深圳华北工控有限公司 Sequence control circuit
CN102662345A (en) * 2012-05-31 2012-09-12 青岛海信电器股份有限公司 Zero-power-consumption standby circuit
CN103345177A (en) * 2013-05-30 2013-10-09 江苏友奥电器有限公司 Zero-power-consumption standby control circuit of household appliances and control method thereof

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