CN209625152U - A kind of timed power on/off circuit and electronic equipment - Google Patents
A kind of timed power on/off circuit and electronic equipment Download PDFInfo
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- CN209625152U CN209625152U CN201920268845.7U CN201920268845U CN209625152U CN 209625152 U CN209625152 U CN 209625152U CN 201920268845 U CN201920268845 U CN 201920268845U CN 209625152 U CN209625152 U CN 209625152U
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Abstract
The utility model relates to switching on and shutting down technical fields, disclose a kind of timed power on/off circuit and electronic equipment, including control module, timing module and switch module, it is connect by the output end of switch module with switch state collection terminal, to realize the switching on and shutting down of switch module controlling electronic devices, and it is connected by the interrupt signal output end of timing module and the interrupt signal collection terminal of control module, to realize the timed power on/off of electronic equipment, so that switch module and timing module can distinguish the switching on and shutting down of controlling electronic devices, it is not removed in time to avoid the interrupt signal that existing timing module generates and electronic equipment is caused to malfunction, to improve the stability of electronic equipment；In addition, connecting by the reset signal output end of control module and the reset signal input terminal of timing module, so that timing module can remove interruption, ensure that timed power on/off circuit being capable of steady operation.
Description
Technical field
The utility model relates to switching on and shutting down technical fields, more particularly to a kind of timed power on/off circuit and electronic equipment.
Background technique
Currently, the electronic equipments such as computer, mobile phone and interactive intelligent plate generally have timed startup/shutdown function, existing
It is general to pass through the timing interrupts output end of the timed power on/off circuit in the timed power on/off circuit of some electronic equipments
The same port of the control module of the timed power on/off circuit is connected to switch, so that the timing interrupts mould of output
Quasi- switch is pressed, to realize booting or shutdown.But in implementing the present invention, it may, inventor has found existing timing
The control module of on/off circuit will not be purged interruption to timing module at once after receiving interrupt signal, but export
Timing interrupts need after control module is purged interruption to timing module could switching levels, and existing timing
The timing interrupts output end and switch of module are connected to the same port of control module, which usually opens with long-pressing
It closes and enters the functions such as upgrade mode, after timing module exports timing interrupts, since timing module is not at once clear
Except interruption, therefore it is easy to cause and long-pressing switch is identified as by control module and to make electronic equipment enter upgrade mode etc. other dynamic
Make, to affect the stability of electronic equipment.
Utility model content
The purpose of the utility model embodiment is to provide a kind of timed power on/off circuit and electronic equipment, can be effectively
Malfunction when electronic equipment machine is avoided, to improve the stability of electronic equipment.
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of timed power on/off circuit, including control
Module, timing module and switch module, the control module include switching on and shutting down signal output end, reset signal output end, interrupt
Signal acquisition terminal and switch state collection terminal, wherein
The output end of the switch module is connect with the switch state collection terminal, and the interrupt signal of the timing module is defeated
Outlet is connect with the interrupt signal collection terminal of the control module, the reset signal output end of the control module and the timing
The reset signal input terminal of module connects.
The output end and switch state collection terminal that the timed power on/off circuit of the utility model embodiment passes through switch module
Connection to realize the switching on and shutting down of switch module controlling electronic devices, and passes through the interrupt signal output end of timing module and control
The interrupt signal collection terminal of molding block connects, to realize the timed power on/off of electronic equipment, so that switch module and timing
Module can distinguish the switching on and shutting down of controlling electronic devices, and the interrupt signal generated to avoid existing timing module is not by clear in time
It removes and electronic equipment is caused to malfunction, to improve the stability of electronic equipment；In addition, the reset by control module is believed
The reset signal input terminal of number output end and timing module connects, so that timing module can remove interruption, ensures that
Timed power on/off circuit being capable of steady operation.
Preferably, the timing module includes the first energization input, timing chip, first resistor, the second electricity
Resistance and first diode, the timing chip include the second energization input, the interrupt signal output end of the timing chip with
One end of first resistor connects, and the other end of the first resistor is connect with first energization input, the first resistor
One end also connect by the second resistance with the cathode of the first diode, the first diode anode with it is described
The interrupt signal output end of timing module connects；The reset of the reset signal input terminal and the timing module of the timing chip
Signal input part connection.The present embodiment includes following advantages: by by the interrupt signal output end of the timing chip and first
One end of resistance connects, and the other end of the first resistor is connect with first energization input, and the one of the first resistor
End is also connect by the second resistance with the cathode of the first diode, anode and the timing of the first diode
The interrupt signal output end of module connects；The reset signal input terminal of the timing chip and the reset signal of the timing module
Input terminal connection, to realize that the interrupt signal output end of the timing module exports the interruption of interrupt signal to the control module
Signal acquisition terminal.
Preferably, the timing chip is RTC chip.The present embodiment includes following advantages: due to RTC chip meter
When it is accurate, therefore the timing chip can ensure that the timing module works normally using RTC chip.
Preferably, the timed power on/off circuit further includes I2C bus, and the control module includes third power supply
The reset signal output end of input terminal, the control module is defeated by the I2C bus and the reset signal of the timing chip
Enter end connection.The present embodiment includes following advantages: since the reset signal output end of the control module passes through the I2C bus
It is connect with the reset signal input terminal of the timing chip, it is logical between the control module and the timing chip to realize
Letter, so that the timing chip can remove interruption, to ensure that the timed power on/off circuit being capable of steady operation.
Preferably, the switch module include the 4th energization input, switch, 3rd resistor, the 4th resistance and
5th resistance；One end of the 3rd resistor is connect with the 4th energization input, and the other end of the 3rd resistor passes through
4th resistance is connect with the switch state collection terminal of the control module；
The other end of the 3rd resistor also passes through the 5th resistance and connect with the first pin of the switch, described to open
The second pin of pass is connected to ground；When the switch is closed, first pin is connect with the second pin, is opened when described
When shutdown is opened, first pin is disconnected with the second pin.The present embodiment includes following advantages: by by described
One end of three resistance is connect with the 4th energization input, and the other end of the 3rd resistor passes through the 4th resistance and institute
The switch state collection terminal connection of control module is stated, the other end of the 3rd resistor also passes through the 5th resistance and opens with described
The the first pin connection closed, the second pin of the switch are connected to ground, to realize that the switch when closed or opened can
Different signals is exported to the switch state collection terminal, to realize the switching on and shutting down of switch module controlling electronic devices.
Preferably, the switch includes button, the first contact and the second contact；First contact and described the
The connection of two contacts；
When the button is in the state being pressed, first contact is connect with the first pin of the switch, institute
It states the second contact to connect with the second pin of the switch, so that described close the switch；
When the button is in the state being released, the first pin of first contact and the switch, which disconnects, to be connected
It connects, second contact and the second pin of the switch disconnect, so that the switch disconnects.The present embodiment includes following
Advantage: since the switch includes button, the first contact and the second contact, when the button is in the state being pressed, institute
The first contact to be stated to connect with the first pin of the switch, second contact is connect with the second pin of the switch, so that
It is described to close the switch, and when the button is in the state being released, first contact is drawn with the first of the switch
Foot disconnects, and second contact and the second pin of the switch disconnect, so that the switch disconnects, to realize
The switch exports different signals to the switch state collection terminal when closed or opened, and then realizes switch module control
The switching on and shutting down of electronic equipment.
Preferably, the timed power on/off circuit further includes Remote Wake Up module, the Remote Wake Up module
Output end is connect with the interrupt signal collection terminal of the control module.The present embodiment includes following advantages: by will be described long-range
The output end of wake-up module is connect with the interrupt signal collection terminal of the control module, so that the timed power on/off circuit energy
The function of enough realizing Remote Wake Up, to enrich the function of the timed power on/off circuit.
Preferably, the Remote Wake Up module includes Remote Wake Up chip, the 6th resistance and the second diode, institute
Stating Remote Wake Up chip includes the 5th energization input, and the output end of the Remote Wake Up chip passes through the 6th resistance and institute
The anode connection of the second diode is stated, the cathode of second diode is connect with the output end of the Remote Wake Up module.This
Embodiment includes following advantages: by the way that the output end of the Remote Wake Up chip is passed through the 6th resistance and the described 2nd 2
The anode connection of pole pipe, the cathode of second diode is connect with the output end of the Remote Wake Up module, described in realizing
The Remote Wake Up function of timed power on/off circuit.
Preferably, the Remote Wake Up chip is RTL8152 chip or RTL8153 chip.
In order to solve identical technical problem, the utility model embodiment also provides a kind of electronic equipment, including described
Timed power on/off circuit.
The utility model embodiment provides a kind of timed power on/off circuit and electronic equipment, passes through the output end of switch module
It is connect with switch state collection terminal, to realize the switching on and shutting down of switch module controlling electronic devices, and by timing module
Break signal output end and the interrupt signal collection terminal of control module connect, to realize the timed power on/off of electronic equipment, to make
The switching on and shutting down of controlling electronic devices can be distinguished by obtaining switch module and timing module, to avoid in the generation of existing timing module
Break signal is not removed in time and electronic equipment is caused to malfunction, to improve the stability of electronic equipment；In addition, passing through
The reset signal output end of control module and the reset signal input terminal of timing module connect, so that timing module can be removed
It interrupts, ensures that timed power on/off circuit being capable of steady operation.
Detailed description of the invention
Fig. 1 is the circuit block diagram of the timed power on/off circuit in the utility model embodiment；
Fig. 2 is the circuit block diagram of another embodiment of the timed power on/off circuit in the utility model embodiment；
Fig. 3 is the circuit diagram of the timed power on/off circuit in the utility model embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
It is shown in Figure 1, a kind of timed power on/off circuit of the preferred embodiment in the utility model, including it is control module 1, fixed
When module 2 and switch module 3, the control module 1 includes switching on and shutting down signal output end OUT, reset signal output end, interrupts letter
Number collection terminal GPIO1 and switch state collection terminal GPIO2, wherein
The output end of the switch module 3 is connect with the switch state collection terminal GPIO2, in the timing module 2
Break signal output end INT is connect with the interrupt signal collection terminal GPIO1 of the control module 1, the reset letter of the control module 1
Number output end is connect with the reset signal input terminal of the timing module 2.
It is shown in Figure 1, the working principle of timed power on/off circuit provided in this embodiment is described in detail below:
In the utility model embodiment, the timed power on/off circuit is used to control the switching on and shutting down of an electronic equipment, institute
Stating electronic equipment can be computer, mobile phone or interactive intelligent plate etc.；The shutdown of the electronic equipment refers to that the electronics is set
For from the state of normal work to standby mode；
It is in the standby state in the electronic equipment, when the switch module 3 exports starting-up signal to the control module 1
Switch state collection terminal GPIO2 when, or when the timing module 2 interrupt signal output end INT output interrupt signal extremely
When the interrupt signal collection terminal GPIO1 of the control module 1, the switching on and shutting down signal output end OUT of the control module 1 is then exported
The signal that main power source for controlling the electronic equipment is powered, to realize booting；
When the electronic equipment is in open state, when the switch module 3 exports off signal to the control module 1
Switch state collection terminal GPIO2 when, or when the timing module 2 interrupt signal output end INT output interrupt signal extremely
When the interrupt signal collection terminal GPIO1 of the control module 1, the switching on and shutting down signal output end OUT of the control module 1 is then exported
The signal that main power source for controlling the electronic equipment powers off, to realize shutdown；
Wherein, interrupt signal is exported to the control module 1 in the interrupt signal output end INT of the timing module 2
After interrupt signal collection terminal GPIO1, the output of the reset signal output end of the control module 1 removes the signal that interrupts to described fixed
When module 2 reset signal input terminal, to remove the interruption of the timing module 2, and then ensure the timed power on/off
Circuit works normally.
In the utility model embodiment, it is connect by the output end of switch module 3 with switch state collection terminal GPIO2,
To realize the switching on and shutting down of 3 controlling electronic devices of switch module, and pass through the interrupt signal output end INT of timing module 2 and control
The interrupt signal collection terminal GPIO1 connection of molding block 1, to realize the timed power on/off of electronic equipment, so that switch module 3
The switching on and shutting down of controlling electronic devices can be distinguished with timing module 2, to avoid existing timing module 2 generate interrupt signal not
It is removed in time and electronic equipment is caused to malfunction, to improve the stability of electronic equipment；In addition, passing through control module
1 reset signal output end is connect with the reset signal input terminal of timing module 2, so that timing module 2 can remove interruption,
Ensure that timed power on/off circuit being capable of steady operation.
In conjunction with shown in Fig. 1 to Fig. 3, in order to realize that the interrupt signal output end INT of the timing module 2 exports interrupt signal
To the interrupt signal collection terminal GPIO1 of the control module 1, the timing module 2 in the present embodiment includes that the first power supply is defeated
Enter to hold VCC1, timing chip, first resistor R1, second resistance R2 and first diode D1, the timing chip includes the second confession
The interrupt signal output end of electrical input VCC2, the timing chip are connect with one end of first resistor R1, the first resistor
The other end of R1 is connect with the first energization input VCC1, and one end of the first resistor R1 also passes through the second resistance
R2 is connect with the cathode of the first diode D1, and the anode of the first diode D1 is believed with the interruption of the timing module 2
Number output end INT connection；The reset signal input terminal of the reset signal input terminal of the timing chip and the timing module 2 connects
It connects.By the way that the interrupt signal output end of the timing chip is connect with one end of first resistor R1, the first resistor R1's
The other end is connect with the first energization input VCC1, one end of the first resistor R1 also by the second resistance R2 with
The cathode of the first diode D1 connects, and the anode of the first diode D1 is defeated with the interrupt signal of the timing module 2
Outlet INT connection, the reset signal input terminal of the timing chip are connect with the reset signal input terminal of the timing module 2,
To realize that the interrupt signal of interrupt signal output end INT output interrupt signal to the control module 1 of the timing module 2 is adopted
Collect end GPIO1.
In conjunction with shown in Fig. 1 to Fig. 3, in order to ensure the timing module 2 works normally, the timing core in the present embodiment
Piece is preferably RTC chip.Due to RTC chip accurate timing, it is described fixed that the timing chip can be ensured using RTC chip
When module 2 work normally.Certainly, the timing chip is not limited to RTC chip, need to only meet and have timing function, In
This, which does not do, more repeats.
In conjunction with shown in Fig. 1 to Fig. 3, in order to realize the communication between the control module 1 and the timing chip, this implementation
The timed power on/off circuit in example further includes I2C bus, and the control module 1 includes third energization input VCC3, institute
The reset signal output end for stating control module 1 is connect by the I2C bus with the reset signal input terminal of the timing chip.
Since the reset signal output end of the control module 1 is inputted by the I2C bus and the reset signal of the timing chip
End connection, to realize the communication between the control module 1 and the timing chip, so that the timing chip can be clear
Except interruption, to ensure that the timed power on/off circuit being capable of steady operation.
In the utility model embodiment, it is preferable that the control module 1 includes control chip, and the control chip is excellent
It is selected as V551 chip, the switching on and shutting down signal output end OUT of the control module 1 is that the switching on and shutting down signal of the V551 chip exports
End, the reset signal output end of the control module 1 are the I2C interface of the V551 chip；The interruption of the control module 1 is believed
Number collection terminal GPIO1 is a GPIO interface of the V551 chip, the switch state collection terminal GPIO2 of the control module 1
For another GPIO interface of the V551 chip.
Institute in conjunction with shown in Fig. 1 to Fig. 3, in order to realize the switching on and shutting down of 3 controlling electronic devices of switch module, in the present embodiment
Stating switch module 3 includes the 4th energization input VCC4, switch S1,3rd resistor R3, the 4th resistance R4 and the 5th resistance R5；Institute
The one end for stating 3rd resistor R3 is connect with the 4th energization input VCC4, and the other end of the 3rd resistor R3 passes through described
4th resistance R4 is connect with the switch state collection terminal GPIO2 of the control module 1；
The other end of the 3rd resistor R3 also passes through the 5th resistance R5 and connect with the first pin of the switch S1,
The second pin of the switch S1 is connected to ground；When switch S1 closure, first pin and the second pin connect
It connects, when the switch S1 is disconnected, first pin is disconnected with the second pin.By by the 3rd resistor R3
One end connect with the 4th energization input VCC4, the other end of the 3rd resistor R3 by the 4th resistance R4 with
The switch state collection terminal GPIO2 connection of the control module 1, the other end of the 3rd resistor R3 also pass through the 5th electricity
Resistance R5 is connect with the first pin of the switch S1, and the second pin of the switch S1 is connected to ground, to realize the switch S1
Different signals can be exported when closed or opened to the switch state collection terminal GPIO2, to realize that switch module 3 is controlled
The switching on and shutting down of electronic equipment processed.
In the utility model embodiment, in order to realize the switching on and shutting down of 3 controlling electronic devices of switch module, this implementation
The switch S1 in example includes button, the first contact and the second contact；First contact is connect with second contact；
When the button is in the state being pressed, first contact is connect with the first pin of the switch S1,
Second contact is connect with the second pin of the switch S1, so that the switch S1 is closed；
When the button is in the state being released, the first pin of first contact and the switch S1, which disconnect, to be connected
It connects, second contact and the second pin of the switch S1 disconnect, so that the switch S1 is disconnected.Due to the switch
S1 includes button, the first contact and the second contact, when the button is in the state being pressed, first contact with it is described
The first pin of switch S1 connects, and second contact is connect with the second pin of the switch S1, so that the switch S1 is closed
It closes, and when the button is in the state being released, the first pin of first contact and the switch S1, which disconnect, to be connected
It connects, second contact and the second pin of the switch S1 disconnect, so that the switch S1 is disconnected, to realize institute
It states switch S1 and exports different signals when closed or opened to the switch state collection terminal GPIO2, and then realize switch
The switching on and shutting down of 3 controlling electronic devices of module.Certainly, the switch S1 can be button switch, can also be toggle switch or by
Key switch etc. need to only meet and have switching function, not do more repeat herein.Certainly, the reset of the control module 1
Connection between signal output end and the timing chip is not limited by I2C bus to realize, need to only meet can be realized institute
The communication between control module 1 and the timing chip is stated, does not do more repeat herein.
Shown in Figure 2, in order to realize the function of Remote Wake Up, the timed power on/off circuit in the present embodiment is also wrapped
Include Remote Wake Up module 4, the interrupt signal collection terminal GPIO1 of the output end of the Remote Wake Up module 4 and the control module 1
Connection.By the way that the output end of the Remote Wake Up module 4 is connect with the interrupt signal collection terminal GPIO1 of the control module 1,
So that the timed power on/off circuit can be realized the function of Remote Wake Up, to enrich the timed power on/off circuit
Function.
The Remote Wake Up module 4 in conjunction with shown in Fig. 1 to Fig. 3, in order to realize the function of Remote Wake Up, in the present embodiment
Including Remote Wake Up chip, the 6th resistance R6 and the second diode D2, the Remote Wake Up chip includes the 5th energization input
The output end of VCC5, the Remote Wake Up chip are connect by the 6th resistance R6 with the anode of the second diode D2,
The cathode of the second diode D2 is connect with the output end of the Remote Wake Up module 4.By by the Remote Wake Up chip
Output end connect by the positive of the 6th resistance R6 and the second diode D2, the cathode of the second diode D2
It is connect with the output end of the Remote Wake Up module 4, to realize the Remote Wake Up function of the timed power on/off circuit.
In conjunction with shown in Fig. 1 to Fig. 3, the Remote Wake Up chip is preferably RTL8152 chip or RTL8153 chip.Certainly,
The Remote Wake Up chip is not limited to RTL8152 chip or RTL8153 chip, and need to only meet can be realized Remote Wake Up function i.e.
Can, it does not do more repeat herein.
In the utility model embodiment, it should be noted that the first energization input VCC1, second power supply
Input terminal VCC2, the third energization input VCC3, the 4th energization input VCC4 and the 5th energization input
VCC5 can be powered by same standby power or different standby powers respectively respectively, as long as can be realized to corresponding
Energization input is powered, and does not do more repeat herein.
In conjunction with shown in Fig. 1 to Fig. 3, the working principle of timed power on/off circuit provided in this embodiment is done retouch in detail below
It states:
It is in the standby state in the electronic equipment, (unclamps), draw after pressing the button when switch S1 closure
The low current potential of the switch state collection terminal GPIO2 of the control module 1, to trigger the switching on and shutting down letter of the control module 1
The signal that number output end OUT output is powered for controlling the main power source of the electronic equipment, and then realize booting；Alternatively, when described
When the interrupt signal output end of timing chip exports interrupt signal collection terminal GPIO1 of the low level to the control module 1, triggering
The signal that the switching on and shutting down signal output end OUT output of the control module 1 is powered for controlling the main power source of the electronic equipment, into
And realize booting；
When the electronic equipment is in open state, (unclamps), draw after pressing the button when switch S1 closure
The low current potential of the switch state collection terminal GPIO2 of the control module 1, to trigger the switching on and shutting down letter of the control module 1
The signal that number output end OUT output is powered off for controlling the main power source of the electronic equipment, and then realize shutdown；Alternatively, when described
When the interrupt signal output end of timing chip exports interrupt signal collection terminal GPIO1 of the low level to the control module 1, triggering
The signal that the switching on and shutting down signal output end OUT output of the control module 1 is powered off for controlling the main power source of the electronic equipment, from
And realize shutdown；
Wherein, believe in the interruption that the interrupt signal output end of the timing chip exports low level to the control module 1
After number collection terminal GPIO1, the reset signal output end output of the control module 1 removes the signal that interrupts to the timing chip
Reset signal input terminal, to remove the interruption of the timing chip, and then ensure that the timed power on/off circuit is normal
Work.
In order to solve identical technical problem, the utility model embodiment also provides a kind of electronic equipment, including described
Timed power on/off circuit.
The utility model embodiment provides a kind of timed power on/off circuit and electronic equipment, passes through the output of switch module 3
End is connect with switch state collection terminal GPIO2, to realize the switching on and shutting down of 3 controlling electronic devices of switch module, and passes through timing
The interrupt signal output end INT of module 2 is connect with the interrupt signal collection terminal GPIO1 of control module 1, to realize electronic equipment
Timed power on/off, so that switch module 3 and timing module 2 can distinguish the switching on and shutting down of controlling electronic devices, to avoid existing
The interrupt signal that some timing modules 2 generate is not removed in time and electronic equipment is caused to malfunction, to improve electronics
The stability of equipment；In addition, being connected by the reset signal output end of control module 1 and the reset signal input terminal of timing module 2
It connects, so that timing module 2 can remove interruption, ensures that timed power on/off circuit being capable of steady operation.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (10)
1. a kind of timed power on/off circuit, which is characterized in that including control module, timing module and switch module, the control
Module includes switching on and shutting down signal output end, reset signal output end, interrupt signal collection terminal and switch state collection terminal, wherein
The output end of the switch module is connect with the switch state collection terminal, the interrupt signal output end of the timing module
It is connect with the interrupt signal collection terminal of the control module, the reset signal output end and the timing module of the control module
Reset signal input terminal connection.
2. timed power on/off circuit as described in claim 1, which is characterized in that the timing module includes the first supply input
End, timing chip, first resistor, second resistance and first diode, the timing chip includes the second energization input, described
The interrupt signal output end of timing chip and one end of first resistor connect, and the other end of the first resistor and described first supplies
Electrical input connection, one end of the first resistor are also connect by the second resistance with the cathode of the first diode,
The anode of the first diode is connect with the interrupt signal output end of the timing module；The reset signal of the timing chip
Input terminal is connect with the reset signal input terminal of the timing module.
3. timed power on/off circuit as claimed in claim 2, which is characterized in that the timing chip is RTC chip.
4. timed power on/off circuit as claimed in claim 3, which is characterized in that the timed power on/off circuit further includes I2C
Bus, the control module include third energization input, and the reset signal output end of the control module is total by the I2C
Line is connect with the reset signal input terminal of the timing chip.
5. timed power on/off circuit according to any one of claims 1-4, which is characterized in that the switch module includes the 4th
Energization input, switch, 3rd resistor, the 4th resistance and the 5th resistance；One end of the 3rd resistor and the 4th power supply
Input terminal connection, the switch state collection terminal that the other end of the 3rd resistor passes through the 4th resistance and the control module
Connection；
The other end of the 3rd resistor also passes through the 5th resistance and connect with the first pin of the switch, the switch
Second pin is connected to ground；When the switch is closed, first pin is connect with the second pin, when the switch is disconnected
When opening, first pin is disconnected with the second pin.
6. timed power on/off circuit as claimed in claim 5, which is characterized in that it is described switch include button, the first contact and
Second contact；First contact is connect with second contact；
When the button is in the state being pressed, first contact is connect with the first pin of the switch, and described the
Two contacts are connect with the second pin of the switch, so that described close the switch；
When the button is in the state being released, first contact and the first pin of the switch are disconnected, institute
It states the second contact and the second pin of the switch disconnects, so that the switch disconnects.
7. timed power on/off circuit according to any one of claims 1-4, which is characterized in that the timed power on/off circuit is also
Including Remote Wake Up module, the output end of the Remote Wake Up module is connect with the interrupt signal collection terminal of the control module.
8. timed power on/off circuit as claimed in claim 7, which is characterized in that the Remote Wake Up module includes Remote Wake Up
Chip, the 6th resistance and the second diode, the Remote Wake Up chip include the 5th energization input, the Remote Wake Up chip
Output end connect by the positive of the 6th resistance and second diode, the cathode of second diode with it is described
The output end of Remote Wake Up module connects.
9. timed power on/off circuit as claimed in claim 8, which is characterized in that the Remote Wake Up chip is RTL8152 core
Piece or RTL8153 chip.
10. a kind of electronic equipment, which is characterized in that including the described in any item timed power on/off circuits of such as claim 1-9.
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| CN201920268845.7U CN209625152U (en) | 2019-03-01 | 2019-03-01 | A kind of timed power on/off circuit and electronic equipment |
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| CN201920268845.7U CN209625152U (en) | 2019-03-01 | 2019-03-01 | A kind of timed power on/off circuit and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112670960A (en) * | 2020-12-23 | 2021-04-16 | 北京北方华创微电子装备有限公司 | Power supply circuit, semiconductor processing equipment and power supply control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112670960A (en) * | 2020-12-23 | 2021-04-16 | 北京北方华创微电子装备有限公司 | Power supply circuit, semiconductor processing equipment and power supply control method |
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