CN104009739B - The on-off control method thereof of a kind of standby automatic power-off switch and device - Google Patents
The on-off control method thereof of a kind of standby automatic power-off switch and device Download PDFInfo
- Publication number
- CN104009739B CN104009739B CN201410217934.0A CN201410217934A CN104009739B CN 104009739 B CN104009739 B CN 104009739B CN 201410217934 A CN201410217934 A CN 201410217934A CN 104009739 B CN104009739 B CN 104009739B
- Authority
- CN
- China
- Prior art keywords
- switch
- power
- input
- electric capacity
- diode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
Standby automatic switching-off device of electric disclosed by the invention, the ingredient such as including switch, button, on-off control mnemon, D.C. regulated power supply, holding state judgement unit, after AC load standby a period of time being detected, it is possible to automatic control switch disconnects, cut off all power；When the switches are opened, press the button and can make switch connection；When the switch is closed, press the button, can make to switch off.Described switch, for needing to automatically cut off the long-term work electrical equipment at holding state or the occasion of equipment, may be mounted in socket, it is also possible to be connected to before electrical equipment.
Description
Technical field
The present invention relates to a kind of switching technique, the on-off control method thereof of a kind of standby automatic power-off switch and dress
Put.
Background technology
Electric equipment at standby energy consumption, also brings " standby " electric equipment in standby period because power supply is not completely off
Unsafe problems.
International Energy Agency initiated the energy-conservation of " 1W plan " in 2000 to the electric equipment products production and selling business of its member state
Proposal, China has put into effect the energy-conservation certification of relevant standby energy consumption the most, but a lot of electric equipment still fails to accomplish zero-power, even
1W power-consumption standby.
Summary of the invention
It is an object of the invention to provide a kind of without microprocessor controls, when electrical equipment is operated in holding state, it is possible to
Automatically power off, can the switching device of the manual power-off of manual type when electrical equipment normally works.
To achieve these goals, present invention also offers the on-off control method thereof of a kind of standby automatic power-off switch.
A kind of standby automatic switching-off device of electric, by on-off control mnemon, switch Guan Bi driver element, switch power supply
Power subsystem, button power supply unit, dual path isolation power subsystem, power supply electrifying detector unit, trigger pulse shaping unit,
Holding state judgement unit forms.
It is defeated that described on-off control mnemon has asynchronous set input, asynchronous reset inputs, edging trigger pulse
Enter end, switch controlling signal outfan.
Described switch Guan Bi driver element is made up of relay coil and drive circuit；The input of drive circuit is connected to out
Closing the switch controlling signal outfan controlling mnemon, the output of drive circuit is connected to relay coil.
Described switch power supply unit by switching, the first DC power voltage stabilizing circuit forms, and has alternating current power supply input
End, ac power output, the first DC power output end；The first terminal of switch, the second terminal are respectively connecting to alternating current
Source input, ac power output；The input of the first DC power voltage stabilizing circuit is connected to the second terminal of switch；First is straight
Stream power supply stabilization circuit is output as the first DC power output end；Described switch is the normal open switch of relay.
Described button power supply unit is made up of button, the second DC power voltage stabilizing circuit, has alternating current power supply input
End, the second DC power output end；The first terminal of button is connected to ac power input end；Second DC power voltage stabilizing circuit
Input be connected to the second terminal of button；Second DC power voltage stabilizing circuit is output as the second DC power output end.
Described dual path isolation power subsystem is made up of diode dual path isolation power supply circuits, has the first DC supply input
End, the second DC supply input and DC supply outfan；First DC supply input is connected to switch power supply electricity
First DC power output end of source unit；Second DC supply input is connected to the second direct current of button power supply unit
Power output end；DC supply outfan output DC supply.
The input of described power supply electrifying detector unit is connected to DC supply, and output is connected to on-off control memory
The asynchronous set input of unit.
Described triggering pulse shaping unit input is connected to the second DC source, and it is single that output is connected to on-off control memory
The edging trigger pulse input end of unit.
Described holding state judgement unit is by anti-phase amplifying circuit, standby threshold given value of current circuit, standby current
Comparison circuit forms；It is defeated that two comparison signal inputs of standby current comparison circuit are respectively connecting to anti-phase amplifying circuit
Go out end, standby threshold given value of current circuit output end；Standby current comparison circuit outfan is connected to on-off control mnemon
Asynchronous reset inputs.
Described on-off control mnemon is d type flip flop 74HC74.
Described switch Guan Bi driver element is made up of relay coil, the first diode, the first resistance, audion；First
The two ends of resistance are respectively connecting to switch controlling signal outfan and the base stage of audion of on-off control mnemon；Relay
Coil is the collector load of audion；First diode reverse is connected in parallel on the two ends of relay coil, and negative electrode is connected to direct current
Working power, anode is connected to the colelctor electrode of audion.
Described switch power supply unit by switching, the first electric capacity, the first stabilivolt, the second resistance form；The of switch
One terminal is connected to alternating current phase line, and the second terminal is ac power output；First electric capacity, the second resistance, the first stabilivolt
Composition capacitance decompression half-wave rectifying circuit；First electric capacity and the second resistor coupled in parallel, then it is connected best friend after the first stabilivolt series connection
Stream power output end and alternating current zero line；The negative electrode of the first stabilivolt is the first DC power output end, the sun of the first stabilivolt
Pole is connected to publicly；It is connected to alternating current zero line publicly.
Described button power supply unit is made up of button, the second electric capacity, the second stabilivolt, the 3rd resistance；The of button
One terminal is connected to alternating current phase line, the second electric capacity, the 3rd resistance, the second stabilivolt composition capacitance decompression half-wave rectifying circuit；
Second electric capacity and the 3rd resistor coupled in parallel, then it is connected to the second terminal and the alternating current zero line of button with the second stabilivolt after connecting；
The negative electrode of the second stabilivolt is the second DC power output end, and the anode of the second stabilivolt is connected to publicly.
Described dual path isolation power subsystem is made up of the second diode, the 3rd diode, the 3rd electric capacity；Second diode,
The negative electrode connection of the 3rd diode becomes DC supply outfan；It is defeated that second diode anode is connected to the first DC source
Go out end；3rd diode anode is connected to the second DC power output end；3rd electric capacity is connected in parallel on DC supply outfan
Between publicly.
Described power supply electrifying detector unit is made up of the 4th resistance, the 4th electric capacity；4th resistance and the 4th capacitances in series connection
After knot, the other end of the 4th resistance is connected to DC supply, and the other end of the 4th electric capacity is connected to publicly；4th
The series connection tie-point of resistance and the 4th electric capacity is connected to the asynchronous set input of on-off control mnemon.
Described triggering pulse shaping unit is made up of the 4th diode, the 5th electric capacity, the 5th resistance；The sun of the 4th diode
Pole is connected to the second DC source, and negative electrode is connected to the edging trigger pulse input end of on-off control mnemon；5th electric capacity
After the 5th resistor coupled in parallel, two ends are respectively connecting to the 4th diode cathode and publicly.
Described anti-phase amplifying circuit is by current transformer, amplifier, the 6th resistance, the 6th electric capacity, the 5th diode group
Become；The in-phase output end of current transformer is connected to the inverting input of amplifier, and the reversed-phase output of current transformer is connected to
The in-phase input end of amplifier；The in-phase input end of amplifier is connected to publicly；6th resistance, that the 6th electric capacity composes in parallel electric current is anti-
The feedback branch of phase amplifying circuit；5th diode anode is connected to the inverting input of amplifier, and negative electrode is connected to publicly；Institute
State standby current comparison circuit to be made up of comparator, the 6th diode, the 7th electric capacity, the 7th resistance；Described standby threshold electric current
Given circuit is made up of potentiometer；Potentiometer output is compared voltage and is connected to the inverting input of comparator；The homophase of comparator
Input is connected to the outfan of amplifier；6th diode cathode, one end of the 7th electric capacity, the 7th resistance a client link for treating
Machine reset signal outfan, is connected to the asynchronous reset inputs of trigger；6th diode anode is connected to the defeated of comparator
Go out end；The other end of the 7th electric capacity is connected to DC supply.
Utilize the on-off control method thereof of a kind of standby automatic power-off switch that device noted earlier realizes, including,
A, when switching off, pressing the button, DC supply powers on, and produces set signal and makes on-off control mnemon
The switch controlling signal set of output, switch connection；
When B, switch Guan Bi, press the button, produce the switch control that edging trigger pulse makes on-off control mnemon export
Signal processed resets, and switches off；
When C, switch Guan Bi, AC load electric current continues for some time less than standby threshold electric current, produces reset signal and makes
The switch controlling signal of on-off control mnemon output resets, and switches off；
D, switching off and time button does not presses, the alternating current power supply of AC load and described device is the most cut-off.
The invention has the beneficial effects as follows: (1) standby automatic circuit break function, load standby exceed certain time after, disconnection is opened
Pass automatically cuts off load power source, it is ensured that Electrical Safety；(2) regular hand tap function, can use button manual ON or break
Switch；(3), after switching off, the alternating current power supply of load and described device is fully shut off, it is achieved Zero-power-consumption standby, also ensures
The safety of device self.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is on-off control mnemon of the present invention, the embodiment of switch Guan Bi driver element.
Fig. 3 is that the present invention switchs power supply unit, button power supply unit, the enforcement of dual path isolation power subsystem
Example.
Fig. 4 is the embodiment of power supply electrifying detector unit of the present invention.
Fig. 5 is the embodiment that the present invention triggers pulse shaping unit.
Fig. 6 is the embodiment of holding state judgement unit of the present invention.
Fig. 7 is the second embodiment of holding state judgement unit of the present invention.
Detailed description of the invention
As it is shown in figure 1, a kind of standby automatic switching-off device of electric, on-off control mnemon 100, switch Guan Bi drive
Unit 200, switch power supply unit 300, button power supply unit 400, dual path isolation power subsystem 500, power supply electrifying
Detector unit 600, triggering pulse shaping unit 700, holding state judgement unit 800 form.
On-off control mnemon 100 has asynchronous set input, asynchronous reset inputs, edging trigger pulse input
End, switch controlling signal outfan, control and memory for realizing the state of switch；Its function is, the on-off control letter of output
When number being set, switch Guan Bi；When the switch controlling signal of output is reset, switch off.Described switch controlling signal is set to
Position be reset, can be positive logic, set correspondence export high level, reset output low level；Can also be negative logic, set
Corresponding output low level, reset output high level；Described asynchronous set input, asynchronous reset inputs can be positive logic,
Input high level is effective；Can also be negative logic, input low level be effective.
Switch Guan Bi driver element 200 is made up of relay coil and drive circuit；The input of drive circuit is connected to out
Closing the switch controlling signal outfan controlling mnemon 100, the output of drive circuit is connected to relay coil；Its function
It is that, when switch controlling signal is set, relay coil obtains electric, switch Guan Bi；When switch controlling signal is reset, relay line
Circle dead electricity, switches off.
On-off control mnemon 100, switch close the embodiment of driver element 200 as shown in Figure 2.On-off control is remembered
Unit 100 is made up of trigger 101, and trigger 101 is d type flip flop；Switch Guan Bi driver element 200 by relay coil 201,
First diode the 202, first resistance 203, audion 204 form；The asynchronous set input of on-off control mnemon 100,
Asynchronous reset inputs, edging trigger pulse input end, switch controlling signal outfan corresponding the asynchronous of trigger 101 respectively is put
Position input S, asynchronous reset inputs R, rising edge trigger pulse input end CLK, outfan Q；The input D of trigger 101
It is connected to publicly；The two ends of the first resistance 203 are respectively connecting to outfan Q and the base stage of audion 204 of trigger 101；
Relay coil 201 is the collector load of audion 204；First diode 202 is fly-wheel diode, is connected in reverse parallel in relay
The two ends of device coil 201.
During trigger 101 set, outfan Q is high level, audion 204 saturation conduction, and relay coil 201 obtains electric；
When trigger 101 resets, outfan Q is low level, and audion 204 ends, relay coil 201 dead electricity.
The model preferred d type flip flop 74HC74 of trigger 101, rises edging trigger, asynchronous set input S, asynchronous reset
Input R Low level effective.
The model of trigger 101 can also select d type flip flop CD4013, rises edging trigger, asynchronous set input S, different
Step reset input R high level is effective.
Trigger 101 can also select have the enumerator of similar functions, depositor.
Switch power supply unit 300 is made up of switch, the first DC power voltage stabilizing circuit, has alternating current power supply input
End, ac power output, the first DC power output end；The first terminal of switch, the second terminal are respectively connecting to alternating current
Source input, ac power output；The input of the first DC power voltage stabilizing circuit is connected to the second terminal of switch；First is straight
Stream power supply stabilization circuit is output as the first DC power output end.The function of switch power supply unit 300 is: switch Guan Bi
Time, provide alternating current power supply to AC load, export effective first DC source simultaneously；When switching off, AC load dead electricity,
First direct current power source voltage is 0V.
Button power supply unit 400 is made up of button, the second DC power voltage stabilizing circuit, has alternating current power supply input
End, the second DC power output end；The first terminal of button is connected to ac power input end；Second DC power voltage stabilizing circuit
Input be connected to the second terminal of button；Second DC power voltage stabilizing circuit is output as the second DC power output end.Press
When the function of button power supply unit 400 is button Guan Bi, export effective second DC source；When button disconnects, second is straight
Stream supply voltage is 0V.
Dual path isolation power subsystem 500 is made up of diode dual path isolation power supply circuits, has the first DC supply input
End, the second DC supply input and DC supply outfan；First DC supply input is connected to switch power supply electricity
First DC power output end of source unit 300；Second DC supply input is connected to the of button power supply unit 400
Two DC power output ends；DC supply outfan directly exports DC supply, or, at the first unidirectional current
Source, the second DC source ripple bigger time, DC supply outfan through capacitor filter export again DC operation electricity
Source.The function of dual path isolation power subsystem 500 is: have one to have in the first DC source of simply entering, the second DC source
Effect, then export effective DC supply；When the first DC source of input and the voltage of the second DC source are all 0V,
The DC supply of output is 0V.
Switch power supply unit 300, button power supply unit 400, dual path isolation power subsystem 500 collectively constitute directly
Stream regulated power supply, embodiment is as shown in Figure 3.
Switch power supply unit 300 is by switch 301, first electric capacity the 302, first stabilivolt the 304, second resistance 303 groups
Become；The first terminal of switch 301 is connected to alternating current phase line L, and the second terminal is ac power output L1；First electric capacity 302,
Second resistance the 303, first stabilivolt 304 forms capacitance decompression half-wave rectifying circuit；First electric capacity 302 and the second resistance 303 are also
Connection, then it is connected to ac power output L1 and alternating current zero line N after connecting with the first stabilivolt 304；First stabilivolt 304
Negative electrode is the first DC source VCC1 outfan, and the anode of the first stabilivolt 304 is connected to publicly；It is connected to exchange publicly
Electrical zero line N.
Switch 301 is the normal open switch of relay, and switch 301 and relay coil 201 are the portion in same relay
Part, when relay coil 201 obtains electric, switch 301 Guan Bi；During relay coil 201 dead electricity, switch 301 disconnection.
Button power supply unit 400 is by button the 401, second electric capacity the 402, second stabilivolt the 404, the 3rd resistance 403 groups
Become；The first terminal of button 401 is connected to alternating current phase line L the second electric capacity the 402, the 3rd resistance the 403, second stabilivolt 404 groups
Become capacitance decompression half-wave rectifying circuit；Second electric capacity 402 is in parallel with the 3rd resistance 403, then connects after connecting with the second stabilivolt 404
It is connected to the second terminal and the alternating current zero line N of button 401；The negative electrode of the second stabilivolt 404 is the second DC source VCC2 output
End, the anode of the second stabilivolt 404 is connected to publicly.
Switch power supply unit 300 and button power supply unit 400 can also select capacitance decompression all-wave whole simultaneously
Current circuit；Now, the direct current negative output terminal of rectifier bridge should be connected to publicly.Switch power supply unit 300 and button supply
Electricity power subsystem 400 can also simultaneously or separately select transformer isolation step-down rectifying circuit.
Dual path isolation power subsystem 500 is made up of the second diode the 501, the 3rd diode the 502, the 3rd electric capacity 503；Second
The negative electrode connection of diode the 501, the 3rd diode 502 becomes DC supply VCC outfan；Second diode 501 anode
It is connected to the first DC source VCC1 outfan；3rd diode 502 anode is connected to the second DC source VCC2 outfan；The
Three electric capacity 503 be connected in parallel on DC supply VCC outfan and publicly between.
The input of power supply electrifying detector unit 600 is connected to DC supply, the set letter that being output as powers on produces
Number, it is connected to the asynchronous set input of on-off control mnemon 100；Its function is, only powers at DC supply
Time, produce a set signal, make the switch controlling signal set that on-off control mnemon 100 exports, switch Guan Bi.
The embodiment of power supply electrifying detector unit 600 as shown in Figure 4, is made up of the 4th resistance the 601, the 4th electric capacity 602；The
Four resistance 601 are connected with the 4th electric capacity 602 after connection, and the other end of the 4th resistance 601 is connected to DC supply VCC,
The other end of the 4th electric capacity 602 is connected to publicly；4th resistance 601 is different with the tie-point output of connecting of the 4th electric capacity 602
Step set signal US, is connected to the asynchronous set input S of trigger 101, output low level effective set signal when powering on,
Make the switch controlling signal UK set that on-off control mnemon 100 exports, switch Guan Bi.
If exporting high level effective set signal when needing to power on, by the 4th resistance 601 and the 4th electric capacity in Fig. 4
602 location swaps.
Trigger pulse shaping unit 700 input and be connected to the second DC source, be output as edging trigger pulse signal, even
It is connected to the edging trigger pulse input end of on-off control mnemon 100；Its function is, only exports a limit when button is pressed
Along the effective edge edge of start pulse signal, on-off control mnemon 100 is made to export.Therefore, the most steady when the second DC source
Fixed, when ripple is the least, can directly using the second DC source as edging trigger pulse signal；Second DC source ripple is big,
When particularly second DC source is half-wave Voltage pulsating direct-current supply, triggering pulse shaping unit 700 needs the second DC source
It is filtered again after isolation.
Trigger the embodiment of pulse shaping unit 700 as it is shown in figure 5, by the 4th diode the 701, the 5th electric capacity the 702, the 5th
Resistance 703 forms；The anode of the 4th diode 701 is connected to the second DC source VCC2, negative electrode output edging trigger pulse CP,
The rising edge being connected to trigger 101 triggers pulse input end CLK；After 5th electric capacity 702 is in parallel with the 5th resistance 703, two ends
It is respectively connecting to the 4th diode 701 negative electrode and publicly.Its operation principle is, when switch 301 Guan Bi, button release, triggers
The asynchronous set input S of device 101 and asynchronous reset inputs R all input high levels, be in hold mode；Press the button,
The rising edge of trigger 101 triggers pulse input end CLK and inputs a rising edge, triggers and makes outfan Q=D=0, on-off control
Signal UK resets, and disconnects switch.
Holding state judgement unit 800 is by anti-phase amplifying circuit, standby threshold given value of current circuit, standby current ratio
Relatively circuit forms；Two comparison signal inputs of standby current comparison circuit are respectively connecting to the output of anti-phase amplifying circuit
End, standby threshold given value of current circuit output end；Standby current comparison circuit outfan exports standby reset signal, is connected to out
Close the asynchronous reset inputs controlling mnemon 100；Its function is, detects AC load electric current, when it is the least
After standby threshold electric current reaches certain time, confirm that AC load enters holding state, export reset signal, make on-off control
The switch controlling signal of mnemon 100 output resets, and disconnects switch.
The embodiment of holding state judgement unit 800 is as shown in Figure 6.
Anti-phase amplifying circuit is by current transformer 801, amplifier the 802, the 6th resistance the 803, the 6th electric capacity the 804, the 5th
Diode 805 forms；The in-phase output end of current transformer 801 "+" it is connected to the inverting input of amplifier 802, Current Mutual Inductance
The reversed-phase output "-" of device 801 is connected to the in-phase input end of amplifier 802；The in-phase input end of amplifier 802 is connected to public
Ground；6th resistance the 803, the 6th electric capacity 804 composes in parallel the feedback branch of anti-phase amplifying circuit；5th diode 805 sun
Pole is connected to the inverting input of amplifier 802, and negative electrode is connected to publicly.Amplifier 502 selects single electricity of rail-to-rail input/output
Source amplifier.
Standby current comparison circuit is by comparator the 806, the 6th diode the 808, the 7th electric capacity the 809, the 7th resistance 810 groups
Become；Standby threshold given value of current circuit is made up of potentiometer 807；Potentiometer 807 output is compared voltage UF1 and is connected to comparator
The inverting input of 806；The in-phase input end of comparator 806 is connected to the outfan of amplifier 802；6th diode 808 negative electrode,
One end of 7th electric capacity 809, a client link of the 7th resistance 810 are standby reset signal UR outfan, are connected to trigger 101
Asynchronous reset inputs R；6th diode 808 anode is connected to the outfan of comparator 806；7th electric capacity 809 is additionally
One end is connected to DC supply VCC；The other end of the 7th resistance 810 is connected to publicly.
AC load shown in Fig. 6 automatically cuts off equipment or the electrical equipment of power supply when being and need standby, its two ends connect respectively
It is connected to ac power output L1 and alternating current power supply zero line N.
Current transformer 801 is arranged in the phase line that ac power output L1 is connected with AC load, is used for detecting stream
Cross the size of current of AC load.Current transformer can use detection range suitable finished product product, it is also possible to coiling voluntarily
Electromagnetic induction coil.
The operation principle of circuit shown in Fig. 6 is, at the negative half-wave of current transformer 801 output current signal, it exports electricity
Stream flows through the 6th resistance 803, the current detection signal U0 of amplifier 802 outfan and AC load current in proportion relation；At electricity
The positive half-wave of current transformer 801 output current signal, its output electric current forms loop through the 5th diode 805, and amplifier 802 exports
The current detection signal U0 of end is 0V.7th electric capacity 809 is charged by the 7th resistance 810, and the charging interval is long；Work as AC load
When electric current is bigger, the amplitude of variation of U0 is big, as long as its peak electricity is pressed with part higher than comparing voltage UF1, then comparator 806 exports
High level pulse, is discharged rapidly to the 7th electric capacity 809 by the 6th diode 808, and standby reset signal UR of output is high electricity
Flat；Only to be in holding state a period of time, i.e. electric current the least and continue for some time for AC load, and AC load enters standby
During state, such as, duration can be 15 seconds, more than 30 seconds, or 1 minute time, the crest voltage of U0 also continues phase
Same a period of time, comparator 806 then continued output low level, and the 6th diode 808 persistently ends less than comparing voltage UF1,
It is charged by the 7th electric capacity 809 by the 7th resistance 810, and the potential duration of standby reset signal UR of output reduces, until becoming
Low level, the switch controlling signal UK making on-off control mnemon 100 export resets, and controls to switch off.
Change the 7th resistance 810 charge constant to the 7th electric capacity 809, thus it is possible to vary AC load is in standby shape
The time length of state.
Regulator potentiometer 807 changes and compares the size of voltage UF1 and can change the size of standby threshold electric current.The need to
Limit the range of accommodation of standby threshold electric current, can be in the two ends series resistance of potentiometer 807.
If the standby reset signal UR high level needing output is effective, thus it is possible to vary shown in Fig. 6, standby current is more electric
The element connected mode on road.Second embodiment as it is shown in fig. 7, compared with Fig. 6, the position of the 7th electric capacity the 809, the 7th resistance 810
Putting exchange, the negative electrode of the 6th diode 808, anode exchange, and voltage signal U0, compare voltage UF1 and are respectively connecting to comparator 806
Inverting input, in-phase input end.
When switching off, when button is not pressed, the alternating current power supply of AC load and described device is the most cut-off, the most again
Press the button, switch just can be made to close.
The foregoing is only embodiments of the invention, be not limited to the present invention, those skilled in the art is come
Saying, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of being made, equivalent
Replacement, improvement etc., within should be included in scope of the presently claimed invention.
Claims (8)
1. a standby automatic switching-off device of electric, it is characterised in that:
By on-off control mnemon, switch Guan Bi driver element, switch power supply unit, button power supply unit, double
Road insulating power supply unit, power supply electrifying detector unit, triggering pulse shaping unit, holding state judgement unit composition；
Described on-off control mnemon have asynchronous set input, asynchronous reset inputs, edging trigger pulse input end,
Switch controlling signal outfan；
Described switch Guan Bi driver element is made up of relay coil and drive circuit；The input of drive circuit is connected to switch control
The switch controlling signal outfan of mnemon processed, the output of drive circuit is connected to relay coil；
Described switch power supply unit by switching, the first DC power voltage stabilizing circuit forms, and has ac power input end, friendship
Stream power output end, the first DC power output end；The first terminal of switch, the second terminal are respectively connecting to alternating current power supply input
End, ac power output；The input of the first DC power voltage stabilizing circuit is connected to the second terminal of switch；First DC source
Mu balanced circuit is output as the first DC power output end；Described switch is the normal open switch of relay；
Described button power supply unit is made up of button, the second DC power voltage stabilizing circuit, have ac power input end,
Two DC power output ends；The first terminal of button is connected to ac power input end；Second DC power voltage stabilizing circuit defeated
Enter to be connected to the second terminal of button；Second DC power voltage stabilizing circuit is output as the second DC power output end；
Described dual path isolation power subsystem is made up of diode dual path isolation power supply circuits, have the first DC supply input,
Second DC supply input and DC supply outfan；First DC supply input is connected to switch power supply list
First DC power output end of unit；Second DC supply input is connected to the second DC source of button power supply unit
Outfan；DC supply outfan output DC supply；
The input of described power supply electrifying detector unit is connected to DC supply, and output is connected to on-off control mnemon
Asynchronous set input；
Described triggering pulse shaping unit input is connected to the second DC source, and output is connected to on-off control mnemon
Edging trigger pulse input end；
Described holding state judgement unit is compared by anti-phase amplifying circuit, standby threshold given value of current circuit, standby current
Circuit forms；Two comparison signal inputs of standby current comparison circuit are respectively connecting to the output of anti-phase amplifying circuit
End, standby threshold given value of current circuit output end；Standby current comparison circuit outfan is connected to on-off control mnemon
Asynchronous reset inputs；
Described switch power supply unit by switching, the first electric capacity, the first stabilivolt, the second resistance form；First end of switch
Son is connected to alternating current phase line, and the second terminal is ac power output；First electric capacity, the second resistance, the first stabilivolt composition
Capacitance decompression half-wave rectifying circuit；First electric capacity and the second resistor coupled in parallel, then it is connected to alternating current after connecting with the first stabilivolt
Source output terminal and alternating current zero line；The negative electrode of the first stabilivolt is the first DC power output end, and the anode of the first stabilivolt is even
It is connected to publicly；It is connected to alternating current zero line publicly；
Described button power supply unit is made up of button, the second electric capacity, the second stabilivolt, the 3rd resistance；First end of button
Son is connected to alternating current phase line, the second electric capacity, the 3rd resistance, the second stabilivolt composition capacitance decompression half-wave rectifying circuit；Second
Electric capacity and the 3rd resistor coupled in parallel, then it is connected to the second terminal and the alternating current zero line of button with the second stabilivolt after connecting；Second
The negative electrode of stabilivolt is the second DC power output end, and the anode of the second stabilivolt is connected to publicly.
Standby automatic switching-off device of electric the most as claimed in claim 1, it is characterised in that described on-off control mnemon is
D type flip flop 74HC74.
Standby automatic switching-off device of electric the most as claimed in claim 1, it is characterised in that described switch Guan Bi driver element by
Relay coil, the first diode, the first resistance, audion form；The two ends of the first resistance are respectively connecting to on-off control note
Recall switch controlling signal outfan and the base stage of audion of unit；Relay coil is the collector load of audion；First
Diode reverse is connected in parallel on the two ends of relay coil, and negative electrode is connected to DC supply, and anode is connected to the collection of audion
Electrode.
Standby automatic switching-off device of electric the most as claimed in claim 1, it is characterised in that described dual path isolation power subsystem by
Second diode, the 3rd diode, the 3rd electric capacity composition；Second diode, the negative electrode connection of the 3rd diode become direct current work
Make power output end；Second diode anode is connected to the first DC power output end；3rd diode anode is connected to second
DC power output end；3rd electric capacity be connected in parallel on DC supply outfan and publicly between.
Standby automatic switching-off device of electric the most as claimed in claim 1, it is characterised in that described power supply electrifying detector unit by
4th resistance, the 4th electric capacity composition；After 4th resistance and the connection of the 4th capacitances in series, the other end of the 4th resistance is connected to directly
Stream working power, the other end of the 4th electric capacity is connected to publicly；The series connection tie-point of the 4th resistance and the 4th electric capacity connects
Asynchronous set input to on-off control mnemon.
Standby automatic switching-off device of electric the most as claimed in claim 1, it is characterised in that described triggering pulse shaping unit by
4th diode, the 5th electric capacity, the 5th resistance composition；The anode of the 4th diode is connected to the second DC source, and negative electrode connects
Edging trigger pulse input end to on-off control mnemon；After 5th electric capacity and the 5th resistor coupled in parallel, two ends connect respectively
To the 4th diode cathode and publicly.
Standby automatic switching-off device of electric the most as claimed in claim 1, it is characterised in that described anti-phase amplifying circuit by
Current transformer, amplifier, the 6th resistance, the 6th electric capacity, the 5th diode composition；The in-phase output end of current transformer is connected to
The inverting input of amplifier, the reversed-phase output of current transformer is connected to the in-phase input end of amplifier；The homophase input of amplifier
End is connected to publicly；6th resistance, the 6th electric capacity compose in parallel the feedback branch of anti-phase amplifying circuit；5th diode
Anode is connected to the inverting input of amplifier, and negative electrode is connected to publicly；Described standby current comparison circuit by comparator, the 6th
Diode, the 7th electric capacity, the 7th resistance composition；Described standby threshold given value of current circuit is made up of potentiometer；Potentiometer exports
Relatively voltage is connected to the inverting input of comparator；The in-phase input end of comparator is connected to the outfan of amplifier；Six or two
Pole tube cathode, one end of the 7th electric capacity, a client link of the 7th resistance are standby reset signal outfan, are connected to trigger
Asynchronous reset inputs；6th diode anode is connected to the outfan of comparator；The other end of the 7th electric capacity is connected to directly
Stream working power.
8. an on-off control method thereof for standby automatic power-off switch, including utilizing treating according to any one of claim 1 to 7
Machine automatic switching-off device of electric, it is characterised in that:
A, when switching off, pressing the button, DC supply powers on, and produces set signal and makes on-off control mnemon export
Switch controlling signal set, switch connection；
When B, switch Guan Bi, press the button, produce the on-off control letter that edging trigger pulse makes on-off control mnemon export
Number reset, switch off；
When C, switch Guan Bi, AC load electric current continues for some time less than standby threshold electric current, produces reset signal and makes switch
The switch controlling signal controlling mnemon output resets, and switches off；
D, switching off and time button does not presses, the alternating current power supply of AC load and described device is the most cut-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410217934.0A CN104009739B (en) | 2014-05-22 | 2014-05-22 | The on-off control method thereof of a kind of standby automatic power-off switch and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410217934.0A CN104009739B (en) | 2014-05-22 | 2014-05-22 | The on-off control method thereof of a kind of standby automatic power-off switch and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104009739A CN104009739A (en) | 2014-08-27 |
| CN104009739B true CN104009739B (en) | 2016-10-26 |
Family
ID=51370256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410217934.0A Expired - Fee Related CN104009739B (en) | 2014-05-22 | 2014-05-22 | The on-off control method thereof of a kind of standby automatic power-off switch and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104009739B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506175B (en) * | 2014-12-12 | 2018-06-19 | 英迪迈智能驱动技术无锡股份有限公司 | A kind of Zero consumption standby circuit |
| KR102347602B1 (en) * | 2017-08-28 | 2022-01-05 | 삼성전자주식회사 | Semiconductor device and Power off method of the same |
| CN107465405A (en) * | 2017-09-18 | 2017-12-12 | 东莞博力威电池有限公司 | A kind of persistence level turns impulse circuit |
| CN110763991B (en) * | 2017-11-16 | 2021-10-01 | 湖南工业大学 | Relay life counting and measuring device |
| CN112462643B (en) * | 2020-11-05 | 2022-03-15 | 中国航空工业集团公司西安航空计算技术研究所 | Self-cancellation state monitoring system based on power supply control switching |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255204A (en) * | 2011-05-01 | 2011-11-23 | 兰如根 | Energy-saving socket with simple circuit |
| JP2012006715A (en) * | 2010-06-25 | 2012-01-12 | Hitachi Ltd | Elevator |
| CN202276031U (en) * | 2011-11-04 | 2012-06-13 | 合肥工业大学 | Power-off zero-power-consumption automatic power-off circuit and equipment standby automatic power-off receptacle |
| CN203225421U (en) * | 2013-05-22 | 2013-10-02 | 王晓文 | Automatic power-off energy-saving socket |
| CN203951452U (en) * | 2014-05-22 | 2014-11-19 | 湖南工业大学 | A kind of standby automatic switching-off device of electric |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5991109B2 (en) * | 2012-09-20 | 2016-09-14 | 富士電機株式会社 | Switching power supply |
-
2014
- 2014-05-22 CN CN201410217934.0A patent/CN104009739B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012006715A (en) * | 2010-06-25 | 2012-01-12 | Hitachi Ltd | Elevator |
| CN102255204A (en) * | 2011-05-01 | 2011-11-23 | 兰如根 | Energy-saving socket with simple circuit |
| CN202276031U (en) * | 2011-11-04 | 2012-06-13 | 合肥工业大学 | Power-off zero-power-consumption automatic power-off circuit and equipment standby automatic power-off receptacle |
| CN203225421U (en) * | 2013-05-22 | 2013-10-02 | 王晓文 | Automatic power-off energy-saving socket |
| CN203951452U (en) * | 2014-05-22 | 2014-11-19 | 湖南工业大学 | A kind of standby automatic switching-off device of electric |
Non-Patent Citations (1)
| Title |
|---|
| 基于单片机的智能插座的设计与实现;项粤生等;《工业控制计算机》;20120930;第25卷(第9期);第1-3节 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104009739A (en) | 2014-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104009739B (en) | The on-off control method thereof of a kind of standby automatic power-off switch and device | |
| CN104868586A (en) | Automatic switching power supply circuit for double-way power supply | |
| CN104578743A (en) | Power supply control circuit | |
| CN204633464U (en) | Double loop power supply automatic switching power supply circuits | |
| CN106992668B (en) | A kind of alternating current-direct current Mixed design DC power supply | |
| CN203951452U (en) | A kind of standby automatic switching-off device of electric | |
| CN102570853A (en) | Constant-power-output magnetron sputtering coating power supply | |
| CN108667285A (en) | Adjust the control circuit and Switching Power Supply of switching frequency and load current relationship | |
| CN204652259U (en) | A kind of switching power circuit | |
| CN104052316A (en) | Automatic switching single-phase rectifier bridge series circuit | |
| CN205427505U (en) | Zero power consumption standby circuit and electronic product | |
| CN204089330U (en) | A kind of adaptive power-supply battery supplies power with double circuit device | |
| CN202340141U (en) | Charging equipment | |
| CN205610497U (en) | Aperiodicity switching power supply controller | |
| CN204836117U (en) | Intelligence switch power | |
| CN210093113U (en) | Suction control device for charging relay of frequency converter | |
| CN204794327U (en) | Battery power control circuit who possesses activation function | |
| CN204465888U (en) | A kind of intelligent router circuit | |
| CN203733719U (en) | Full wave resistive and capacitive voltage reduction relay drive circuit | |
| CN207082870U (en) | A kind of CT power-supply circuits | |
| CN208316569U (en) | Adjust the control circuit and Switching Power Supply of switching frequency and load current relationship | |
| CN207200608U (en) | The electric motor electricity saver of harmonic wave can be reduced | |
| CN203562946U (en) | Power supply control circuit | |
| CN104979891A (en) | Battery power supply control circuit with activation function | |
| CN203984264U (en) | A kind of automatic switching single-phase rectification bridge series circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161026 Termination date: 20180522 |