CN102736524B - Power switch - Google Patents
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- CN102736524B CN102736524B CN201110086235.3A CN201110086235A CN102736524B CN 102736524 B CN102736524 B CN 102736524B CN 201110086235 A CN201110086235 A CN 201110086235A CN 102736524 B CN102736524 B CN 102736524B
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- triode
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Abstract
The invention relates to a power switch which is used to control the on-off of an electronic device and a direct current power. The power switch comprises a switch key, a charging circuit, a control circuit, a trigger and a switch tube. After the charging circuit is connected with the control circuit in parallel, the charging circuit is electrically connected with the direct current power through the switch key. The trigger is connected between the control circuit and the switch tube. The switch tube comprises a first pole electrically connected with the direct current power, a second pole electrically connected with the electronic device, and a control pole electrically connected with the trigger. The control pole controls the on-off of the first pole and the second pole. When the switch key is turned on, the charging circuit is charged. When the switch key is cut off, the voltage of the charging circuit after charging drives the control circuit to work. If the voltage that the control circuit inputs to the trigger is greater than the trigger voltage of the trigger, the signal output by the trigger reverses, and the on-off state of the switch tube changes; if the voltage that the control circuit inputs to the trigger is less than the trigger voltage of the trigger, the signal output by the trigger dose not change, and the on-off state of the switch tube does not change to avoid the false operation of a user.
Description
Technical field
The present invention relates to a kind of switch, relate in particular to a kind of power switch.
Background technology
The upper operated by rotary motion of present electronic equipment (such as computer) has the power switch being connected with external power supply, for by supply module conducting or the disconnection of described external power supply and described electronic equipment, to open or to close electronic equipment.If but user touches because of carelessness described power switch in operating process, will make described electronic equipment be started shooting or shut down at once, to user, bring very large puzzlement like this, such as originally not wanting to start described electronic equipment, result touches described power switch because of carelessness, described electronic equipment has just been started shooting, and can waste electric energy; Original do not want to close described electronic equipment, result touches described power switch because of carelessness, and described electronic equipment has just shut down, and causes some files do not preserve and lose.
Summary of the invention
In view of this, be necessary to provide a kind of power switch that prevents user misoperation.
A power switch, for controlling the break-make of electronic equipment and direct supply.Described power switch comprises on & off switch, charging circuit, control circuit, trigger and switching tube.Described charging circuit is electrically connected to described direct supply by described on & off switch.Described control circuit and described charging circuit are in parallel.Described trigger is connected between described control circuit and described switching tube.Described switching tube comprises first utmost point, second utmost point and controls the utmost point.Described first utmost point is electrically connected to direct supply.Described second utmost point is electrically connected to described electronic equipment.The described control utmost point is electrically connected to described trigger, for controlling the break-make of described first utmost point and described second utmost point.When on & off switch is switched on, described charging circuit charges.After described on & off switch is disconnected, voltage after charging circuit charging makes described control circuit work, if when described control circuit is exported to the voltage of described trigger and is greater than the trigger voltage of described trigger, the output signal of described trigger is reverse, the on off operating mode of described switching tube is changed; If when described control circuit is exported to the voltage of described trigger and is less than the trigger voltage of described trigger, the output signal of described trigger remains unchanged, and the on off operating mode of described switching tube is remained unchanged.
Power switch of the present invention, at described power switch, be switched on after then disconnection, when if described control circuit is exported to the voltage of described trigger and is less than the trigger voltage of described trigger, the output signal of described trigger remains unchanged, make the on off operating mode of described switching tube constant, therefore can effectively prevent described user misoperation.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of the power switch of better embodiment of the present invention.
Fig. 2 is the circuit diagram of the power switch of Fig. 1.
Main element symbol description
| |
100 |
| |
200 |
| |
210 |
| |
220 |
| On & off switch | K |
| First end | K1 |
| The second end | K2 |
| Body | |
| Charging circuit | |
| 20 | |
| Charging capacitor | C0 |
| Charging resistor | |
| Control circuit | |
| 30 | |
| Diode | D |
| The first triode | T1 |
| The second triode | T2 |
| The 3rd triode | T3 |
| The 4th triode | T4 |
| The 5th triode | T5 |
| The first resistance | R1 |
| The second resistance | R2 |
| The 3rd resistance | R3 |
| The 4th resistance | R4 |
| The 5th resistance | R5 |
| The 6th resistance | R6 |
| The 7th resistance | R7 |
| The 8th resistance | R8 |
| The 9th resistance | R9 |
| The tenth resistance | R10 |
| Switching |
50 |
| First |
51 |
| Second utmost point | 52 |
| Control the utmost point | 53 |
| |
70 |
| Power pins | VDD |
| Clock pin | CP1 |
| Reset pin | CD1 |
| Output pin | Q |
| The 11 resistance | |
| Reset circuit | |
| 80 | |
| The 6th triode | T6 |
| The 12 resistance | R12 |
| The 13 resistance | R13 |
| The 14 resistance | R14 |
| The 15 resistance | R15 |
| Direct supply | Vcc |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
A kind of power switch 100 that Fig. 1 and Fig. 2 provide for embodiment of the present invention, it is for controlling being electrically connected to or disconnection of an electronic equipment 200 and a direct supply Vcc.Described electronic equipment 200 comprises a processor 210 and a timer 220 of mutual electrical connection.Described power switch 100 comprises an on & off switch K, 50, one triggers 70 of 30, one switching tubes of 20, one control circuits of a charging circuit and a reset circuit 80.Described charging circuit 20 is electrically connected to described direct supply Vcc by described on & off switch K.Described control circuit 30 is electrically connected to described charging circuit 20.Described trigger 70 is connected between described control circuit 30 and described switching tube 50.
Described on & off switch K comprises a first end K1, a second end K2 and a body K3.Described body K3 is for being electrically connected to described first end K1 with described the second end K2.Described first end K1 is electrically connected to described charging circuit 20, and described the second end K2 is electrically connected to described direct supply Vcc.
Described charging circuit 20 comprises a diode D, one the first resistance R 1, charging capacitor C0 and a charging resistor R0.One end of described charging capacitor C0 is electrically connected to described direct supply Vcc by described the first resistance R 1, described diode D and described on & off switch K successively, other end ground connection.Wherein, the positive pole of described diode D is electrically connected to described on & off switch K, and the negative pole of described diode D is electrically connected to described the first resistance R 1.Described charging resistor R0 and described charging capacitor C0 are in parallel.When described on & off switch K is closed, described charging capacitor C0 is electrically connected to described direct supply Vcc, charges.In the present embodiment, the capacitance of described charging capacitor C0 is 106KF, and the resistance of described charging resistor R0 is 1M Ω.
Described control circuit 30 comprises a first triode T1, second triode T2, the 3rd triode T3, the 4th triode T4, the 5th triode T5, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9, the tenth resistance R 10 and a direct earth capacitance C1.
In the present embodiment, described the first triode T1, the second triode T2, the 3rd triode T3, the 4th triode T4, the 5th triode T5 are NPN type triode, when base stage is not during biasing, and described NPN type triode cut-off; When described base stage adds larger bias voltage, making pressure reduction between described base stage and described emitter is 0.7 V when above, the conducting of described NPN type triode.
The base stage of described the first triode T1 is successively by described the second resistance R 2 and described charging resistor R0 ground connection.The collector of described the first triode T1 is electrically connected to described direct supply Vcc, and the emitter of described the first triode T1 is electrically connected to the collector of described the 3rd triode T3.
The base stage of described the second triode T2 is electrically connected to the first end K1 of described on & off switch K by described the 3rd resistance R 3.The collector of described the second triode T2 is electrically connected to described direct supply Vcc by described the 4th resistance R 4, the grounded emitter of described the second triode T2.
The base stage of described the 3rd triode T3 is electrically connected to the collector of described the second triode T2, and the emitter of described the 3rd triode T3 is electrically connected to the base stage of described the 4th triode T4.The emitter of described the 3rd triode T3 is also by described the 5th resistance R 5 ground connection.Described direct earth capacitance C1 is in parallel with described the 5th resistance R 5.
The collector of described the 4th triode T4 is electrically connected to described direct supply Vcc by described the 6th resistance R 6, and is electrically connected to the base stage of described the 5th triode T5 by described the 7th resistance R 7.The emitter of described the 4th triode T4 is by described the 8th resistance R 8 ground connection.
The base stage of described the 5th triode T5 is also by described the 9th resistance R 9 ground connection.The collector of described the 5th triode T5 is electrically connected to described direct supply Vcc by described the tenth resistance R 10, and the emitter of described the 5th triode T5 is electrically connected to the emitter of described the 4th triode T4.
In the present embodiment, the resistance of described the first resistance R 1 is 220K Ω, the resistance of described the second resistance R 2 is 220K Ω, the resistance of described the 3rd resistance R 3 is 220K Ω, the resistance of described the 4th resistance R 4 is 47K Ω, the resistance of described the 5th resistance is 1K Ω, the resistance of described the 6th resistance R 6 is 124K Ω, the resistance of described the 7th resistance R 7 is 750K Ω, the resistance of described the 8th resistance R 8 is 22K Ω, the resistance of described the 9th resistance R 9 is 374K Ω, and the resistance of described the tenth resistance R 10 is 220K Ω, and the capacitance of described direct earth capacitance C1 is 103KF.
Described switching tube 50 comprises first utmost point 51, the second utmost points 52 and a control utmost point 53.Described first utmost point 51 is electrically connected to described direct supply Vcc, and described second utmost point 52 is electrically connected to described electronic equipment 200.The described control utmost point 53 is electrically connected to described trigger 70, for controlling the break-make of described first utmost point 51 and described second utmost point 52.In the present embodiment, described switching tube is P-channel field-effect transistor (PEFT) pipe, and wherein said first utmost point 51 is drain electrode, and described second utmost point 52 is source electrode, and the described control utmost point 53 is grid.Described P channel switches pipe has the characteristic of low level conducting, and when the described control utmost point 53 is low level " 0 ", the conducting of described P channel switches pipe, makes described first utmost point 51 be connected with described second utmost point 52; When the described control utmost point 53 is high level " 1 ", described P channel switches pipe cut-off, disconnects described first utmost point 51 and described second utmost point 52.
Described trigger 70, for according to the signal of described control circuit 30, is controlled conducting or the disconnection of described switching tube 50.Described trigger 70 comprises power pins VDD, clock pin CP1, reset pin CD1, output pin Q and reverse output pin
.Described power pins VDD is electrically connected to described direct supply Vcc.Described clock pin CP1 is electrically connected to the collector of described the 5th triode T5.Described reset pin CD1 is electrically connected to described reset circuit 80.Described reverse output pin
by described the 11 resistance R 11, be electrically connected to the control utmost point 53 of described switching tube 50.Described the 11 resistance R 11 mainly plays the effect of dividing potential drop, makes the lower voltage of the control utmost point 53 of described switching tube 50, protects the described switching tube 50 can be because of voltage high damage too.Described reverse output pin
level contrary with the level of described output pin Q all the time, and along with the variation of the level of described output pin Q and change.In the present embodiment, the trigger voltage of described trigger 70 is 4V, that is to say when described control circuit 30 is greater than the voltage of 4V to one of described clock pin CP1 input, described trigger 70 sends a trigger pip, make the level of described output pin Q reverse, the on off operating mode of described switching tube 50 is changed.When described control circuit 30 is less than the voltage of 4V to one of described clock pin CP1 input, described trigger 70 can not send a trigger pip, and the level of described output pin Q remains unchanged, and the on off operating mode of described switching tube 50 is remained unchanged.In the present embodiment, the model of described trigger 70 is 4013D.
Described reset circuit 80, for described trigger 70 is carried out to initialization, makes described trigger 70 when original state, and first utmost point 51 of described switching tube 50 disconnects with described second utmost point 52.Described reset circuit 80 comprises a 6th triode T6, the 12 resistance R 12 and the 13 resistance R 13.The base stage of described the 6th triode T6 is electrically connected to described direct supply Vcc by described the 12 resistance R 12.The collector of described the 6th triode T6 is not only electrically connected to described direct supply Vcc by described the 13 resistance R 13, but also is electrically connected to the reset pin CD1 of described trigger 70.The grounded emitter of described the 6th triode T6.In the present embodiment, the resistance of described the 12 resistance R 12 is 39K Ω, and the resistance of described the 13 resistance R 13 is 47K Ω.Be appreciated that, described direct supply Vcc is that the power supply changeover device by described electronic equipment 200 provides, described power supply changeover device is electrically connected to an external power supply, after the power supply changeover device and the connection of described external AC power supply of described electronic equipment 200, described reset circuit 80 sends a reset signal at once to described trigger 70.
Described control circuit 30 also comprises the 14 resistance R 14 and the 15 resistance R 15.The first end K1 of described on & off switch K is also by described the 14 resistance R 14 and described the 15 resistance R 15 ground connection.The input end of the timer 220 of described electronic equipment 200 is connected between described the 14 resistance R 14 and described the 15 resistance R 15, and output terminal is electrically connected to described processor 210.Described the 14 resistance R 14 and described the 15 resistance R 15 mainly play the effect of dividing potential drop, the voltage (such as 3.3V) that the lower voltage of described timer 220 input ends can be born to described timer 220.Due to when described on & off switch K connects, described direct supply Vcc is electrically connected to described timer 220 by the 14 resistance R 14, now has electric current and enters described timer 220, and therefore described timer 220 can calculate the time that described on & off switch K connects.Described timer 220 storage inside have a schedule time value.Described timer 220 can also compare the time of measurement and described schedule time value, and comparative result is passed to described processor 210, and described processor 210, according to described comparative result, is carried out corresponding function.While being less than the described schedule time such as the time obtaining when detecting, described processor 210 is carried out other functions (such as keyboard), that is to say, now described on & off switch K can be used as a function key use.When the time that detecting obtains is greater than the described schedule time, described processor 210 is carried out the action of shutdown.The described schedule time refers to that described on & off switch K is closed, is recharged charging circuit 20, until described the first triode T1 is switched on the required time.In the present embodiment, the resistance of described the 14 resistance R 14 is 220K Ω, and the resistance of described the 15 resistance R 15 is 74K Ω.
The course of work of described power switch 100 is as follows: because described the 6th triode T6 is electrically connected to described direct supply Vcc by described the 13 resistance R 13, therefore described the 6th triode T6 meeting conducting, make the reset terminal CD1 ground connection of described trigger 70, described trigger 70 is reset, described output pin Q becomes low level " 0 ", described reverse output pin
become high level " 1 ", first utmost point 51 of described switching tube 50 and second utmost point 52 are disconnected, described processor 210 disconnects with described direct supply Vcc.When the voltage that passes to described clock pin CP1 when described control circuit 30 is greater than the trigger voltage of described trigger 70, described trigger 70 can produce a pulse signal, make the level of described output pin Q reverse, become high level " 1 ", described reverse output pin
level also thereupon reverse, become low level " 0 ", make first utmost point 51 and second utmost point 52 conductings of described switching tube 50.When the voltage of described clock pin CP1 is less than the threshold voltage of described trigger 70 interior storages, described trigger 70 can not produce a pulse signal, described output pin Q and described reverse output pin
level hold constant, be also described reverse output pin
still be high level " 1 ", make described switching tube 50 not conductings.Described power switch 100 comprises following four kinds of duties:
(1) when short by described on & off switch K, after loosing one's grip, the electricity that described charging circuit 20 fills is not enough so that described the first triode T1 conducting, described the first triode T1 cut-off.The voltage of the base stage of described the second triode T2 is zero, described the second triode T2 cut-off.Now the base stage of described the 3rd triode T3 is electrically connected to described direct supply Vcc by described the 4th resistance R 4, and grounded emitter makes described the 3rd triode T3 conducting; The base stage of described the 4th triode T4 is by described the 5th resistance R 5 ground connection, and described the 4th triode T4 ends; The base stage of described the 5th triode T5 is electrically connected to described direct supply Vcc by described the 6th resistance R 6 and described the 7th resistance R 7, grounded emitter, described the 5th triode T5 conducting, now the voltage of the clock pin CP1 of described trigger 70 is Vcc*R8/[(R6+R7) //R10+R8//R9], learn that as calculated now the voltage of described clock pin CP1 approximates 0.76V, be less than the trigger voltage of described trigger 70, therefore described trigger 70 is failure to actuate, make described switching tube 50 not conductings, described processor 210 disconnects with described direct supply Vcc.
(2) when long, by described on & off switch K, then loose one's grip, make voltage after described charging circuit 20 chargings can be by described the first triode T1 conducting time; The base stage of described the second triode T2 and described direct supply Vcc disconnect, described the second triode T2 cut-off; The base stage of described the 3rd triode T3 is electrically connected to described direct supply Vcc by described the 4th resistance R 4, grounded emitter, described the 3rd triode T3 conducting; The base stage of described the 4th triode T4 is electrically connected to described direct supply Vcc by described the first triode T1 and described the 3rd triode T3, grounded emitter, described the 4th triode T4 conducting; Now the voltage of described the 5th triode T5 is Vcc*R9/[R6+R8//(R7+R9)], this voltage does not reach the forward voltage of described the 5th triode T5, described the 5th triode T5 cut-off, now described clock pin CP1 is electrically connected to described direct supply Vcc by described the tenth resistance R 10, make the voltage of described clock pin CP1 over the threshold voltage of described trigger 70 interior storages, described trigger 70 just can produce a pulse signal, make the level of described output pin Q reverse, by low level, become high level, reverse output pin
become low level, described switching tube 50 conductings, described processor 210 is electrically connected to described direct supply Vcc, described electronic equipment 200 starts.
(3) when described electronic equipment 200 in the course of the work, user is short when the described on & off switch K, whole process is similar to state (1), described trigger 70 is failure to actuate, and also just can not make described reverse output pin
level reverse, the state of described switching tube 50 is constant.
(4) when described electronic equipment 200 in the course of the work, with the head of a household, when the described on & off switch K, whole process is similar to state (2), described trigger 70 sends a pulse signal, makes described reverse output pin
level reverse, the state of described switching tube 50 changes, described switching tube disconnects, described electronic equipment 200 disconnects with described direct supply Vcc, described electronic equipment 200 shutdown.
Power switch of the present invention, at described power switch, be switched on after then disconnection, when if described control circuit is exported to the voltage of described trigger and is less than the trigger voltage of described trigger, the output signal of described trigger remains unchanged, the on off operating mode of described switching tube is remained unchanged, therefore can effectively prevent described user misoperation.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change and distortion all should belong to the protection domain of the claims in the present invention.
Claims (10)
1. a power switch, for controlling the break-make of electronic equipment and direct supply, described power switch comprises on & off switch, charging circuit, control circuit, trigger and switching tube; Described control circuit is electrically connected to described on & off switch and trigger; Described charging circuit is electrically connected to described direct supply by described on & off switch; Described control circuit and described charging circuit are in parallel; Described trigger is connected between described control circuit and described switching tube; Described switching tube comprises first utmost point, second utmost point and controls the utmost point; Described first utmost point is electrically connected to direct supply; Described second utmost point is electrically connected to described electronic equipment; The described control utmost point is electrically connected to described trigger, for controlling the break-make of described first utmost point and described second utmost point; When on & off switch is switched on, described charging circuit charges; After described on & off switch is disconnected, voltage after charging circuit charging makes described control circuit work, if when described control circuit is exported to the voltage of described trigger and is greater than the trigger voltage of described trigger, the output signal of described trigger is reverse, the on off operating mode of described switching tube is changed; If when described control circuit is exported to the voltage of described trigger and is less than the trigger voltage of described trigger, the output signal of described trigger remains unchanged, and the on off operating mode of described switching tube is remained unchanged.
2. power switch as claimed in claim 1, is characterized in that, described on & off switch comprises body, first end and the second end; Described body is for being electrically connected to described first end with described the second end; Described first end is electrically connected to described control circuit, and described the second end is electrically connected to described direct supply.
3. power switch as claimed in claim 2, it is characterized in that, described charging circuit comprises a diode, first resistance, a charging capacitor and a charging resistor, one end of described charging capacitor is electrically connected to described direct supply by described the first resistance, described diode and described on & off switch successively, other end ground connection; The positive pole of described diode is electrically connected to described direct supply, and described the first resistance is connected between the negative pole and described charging capacitor of described diode; Described charging resistor and described charging capacitor are in parallel.
4. power switch as claimed in claim 3, is characterized in that, described control circuit comprises the first triode, the second triode, the 3rd triode, the 4th triode, the 5th triode, the second resistance, the 3rd resistance and the 4th resistance; The base stage of described the first triode is successively by described the second resistance and described charging resistor ground connection; The collector of described the first triode is electrically connected to described direct supply, and the emitter of described the first triode is electrically connected to the collector of described the 3rd triode; The base stage of described the second triode is electrically connected to the first end of described on & off switch by described the 3rd resistance; The collector of described the second triode is electrically connected to described direct supply by described the 4th resistance, the grounded emitter of described the second triode; The base stage of described the 3rd triode is electrically connected to the collector of described the second triode, and the emitter of described the 3rd triode is electrically connected to the base stage of described the 4th triode; The grounded emitter of described the 3rd triode; The collector of described the 4th triode is electrically connected to described direct supply, and is electrically connected to the base stage of described the 5th triode; The grounded emitter of described the 4th triode; The base earth of described the 5th triode; The collector of described the 5th triode is electrically connected to described direct supply, and the emitter of described the 5th triode is electrically connected to the emitter of described the 4th triode.
5. power switch as claimed in claim 4, it is characterized in that, described control circuit also comprises the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance and direct earth capacitance, described the second resistance is between the negative pole of described diode and the base stage of described the first triode, described the 3rd resistance is connected between the first end of described switch and the base stage of described the second triode, described the 4th resistance is connected between described direct supply and the base stage of described the 3rd triode, described the 5th resistance is connected between the emitter and the earth of described the 3rd triode, described direct earth capacitance is in parallel with described the 5th resistance, described the 6th resistance is connected between described direct supply and the collector of described the 4th triode, described the 7th resistance is connected between the collector of described the 4th triode and the base stage of described the 5th triode, described the 8th resistance is connected between the emitter and the earth of described the 5th triode, described the 9th resistance is connected between the base stage and the earth of described the 5th triode, described the tenth resistance is connected between the collector and described direct supply of described the 5th triode.
6. power switch as claimed in claim 4, is characterized in that, described trigger comprises clock pin, output pin, reverse output pin and reset pin; Described clock pin is electrically connected to the collector of described the 5th triode, the level of described reverse output pin is contrary with the level of described output pin all the time, and along with the variation of the level of described output pin and change, described reverse output pin is electrically connected to the control utmost point of described switching tube by the 11 resistance, described power switch also comprises a reset circuit, and described reset circuit is electrically connected to described reset pin.
7. power switch as claimed in claim 6, it is characterized in that, described reset circuit comprises a power supply and the 6th triode, and the base stage of described the 6th triode is electrically connected to described direct supply, collector is electrically connected to the reset pin of described trigger, grounded emitter.
8. power switch as claimed in claim 7, is characterized in that, described reset circuit also comprises the 12 resistance and the 13 resistance; The two ends of described the 12 resistance are electrically connected to base stage and the described direct supply of described the 6th triode respectively, and the two ends of described the 13 resistance are electrically connected to collector and the described direct supply of described the 6th triode respectively.
9. power switch as claimed in claim 1, it is characterized in that, described electronic equipment comprises timer and the processor of mutual electrical connection, described on & off switch is also electrically connected to described timer, the time that described timer is connected for detecting described on & off switch, and the schedule time value of the time obtaining and described timer storage inside is compared, and comparative result is passed to described processor, described processor, according to described comparative result, is carried out corresponding function.
10. power switch as claimed in claim 9, it is characterized in that, the first end of described on & off switch is by 1 the 14 resistance and 1 the 15 resistance eutral grounding, the input end of described timer is connected between described the 14 resistance and described the 15 resistance, and the output terminal of described timer is electrically connected to described processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110086235.3A CN102736524B (en) | 2011-04-07 | 2011-04-07 | Power switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110086235.3A CN102736524B (en) | 2011-04-07 | 2011-04-07 | Power switch |
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| CN102736524A CN102736524A (en) | 2012-10-17 |
| CN102736524B true CN102736524B (en) | 2014-04-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103941597B (en) * | 2013-01-21 | 2016-09-07 | 国基电子（上海）有限公司 | Power control circuit and there is the electronic installation of this power control circuit |
| CN103973287B (en) * | 2014-05-21 | 2017-01-04 | 华为技术有限公司 | On/off circuit |
| CN104483879A (en) * | 2014-12-12 | 2015-04-01 | 福建联迪商用设备有限公司 | Device and method for controlling response time of power switch |
| CN111130525B (en) * | 2019-12-31 | 2024-03-15 | 北京旋极信息技术股份有限公司 | Control circuit, ignition device and switch control system |
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| CN101030774A (en) * | 2006-02-28 | 2007-09-05 | 盛群半导体股份有限公司 | Circuit and method for generating power-supply initial reset signal |
| CN201937248U (en) * | 2010-12-22 | 2011-08-17 | 四川长虹电器股份有限公司 | Self-locking protective circuit for switch power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102736524A (en) | 2012-10-17 |
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