CN206790465U - A kind of power supply unit and its on-off circuit - Google Patents
A kind of power supply unit and its on-off circuit Download PDFInfo
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- CN206790465U CN206790465U CN201720055582.2U CN201720055582U CN206790465U CN 206790465 U CN206790465 U CN 206790465U CN 201720055582 U CN201720055582 U CN 201720055582U CN 206790465 U CN206790465 U CN 206790465U
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Abstract
The utility model provides a kind of power supply unit and its on-off circuit, suitable for switching technique field.Wherein, on-off circuit is connected with power supply, for for the power on/off between user's control power supply and load, it to include：Energization unit, trigger element and power-off unit；After power supply is connected with on-off circuit, trigger element realizes the control system of switching on or off electricity to load according to operational motion or control signal；Trigger element exports power control signal according to the first operational motion or the first control signal to energization unit, and energization unit is worked according to power control signal, and then path is formed between power supply and load, load is started working；Trigger element exports power down control signal according to the second operational motion or the second control signal to power-off unit, power-off unit works according to power down control signal, and then open circuit is formed between power supply and load, load is stopped, reduce the cost for the normally opened or normal off control for realizing intelligent artifact internal circuit.
Description
Technical field
It the utility model is related to switching technique field, more particularly to a kind of power supply unit and its on-off circuit.
Background technology
With the popularization of intelligent artifact, increasing intelligent artifact has to seize market with relatively low selling price.
The normally opened or normal off of internal circuit is being realized in existing intelligent artifact, toggle switch is typically set or controlled by software
The conducting and cut-off of switching tube, and then realize the normally opened or normal off control of circuit in intelligent artifact.However, pass through toggle switch pair
Intelligent artifact internal circuit realizes normally opened or normal off, it is necessary to larger rectification be carried out to original circuit, by software to intelligent production
Product internal circuit realizes normally opened or normal off, and its cost is too high and needs to increase the process of program write-in and test.
In summary, realization be present when the normally opened or normal off for realizing intelligent artifact internal circuit controls in the prior art
The problem of cost is higher.
Utility model content
The purpose of this utility model is to provide a kind of power supply unit and its on-off circuit, to solve in the prior art in reality
During the normally opened or normal off control of existing intelligent artifact internal circuit, the problem of cost of implementation is higher be present.
The purpose of this utility model is to provide a kind of on-off circuit, is connected with power supply, for for user's control power supply with
Power on/off between load, the on-off circuit include：Energization unit, trigger element and power-off unit；
First energization end of the energization unit is connected with the first output end of the power supply, and the second of the energization unit
First output end at energization end, the second output end of the power supply and the power-off unit connects the first input of the load altogether
End, the 3rd energization end of the energization unit is connected with the second input of the load, the input of the trigger element and
First energization end of the energization unit is connected, the power control end of the trigger element and the second output of the power-off unit
End connects the controlled end of the energization unit, the power-off control terminal of the trigger element and the controlled end phase of the power-off unit altogether
Even；
After the power supply is connected with the on-off circuit, the trigger element is according to operational motion or control signal realization pair
The control system of switching on or off electricity of the load；
The trigger element exports power control according to the first operational motion or the first control signal to the energization unit
Signal, the energization unit work according to the power control signal, and then are formed and led between the power supply and the load
Road, the load is set to start working；
The trigger element exports power-off control according to the second operational motion or the second control signal to the power-off unit
Signal, the power-off unit work according to the power down control signal, and then are formed and broken between the power supply and the load
Road, the load is set to be stopped.
Further, the energization unit includes：First resistor, second resistance, first switch pipe and second switch pipe；
The node that the first end of the first resistor is connected with the hot end of the first switch pipe is the list that is powered
First energization end of member, the second end of the first resistor and the controlled end of the first switch pipe connect the second switch pipe altogether
Hot end, the cold end of the second switch pipe is the second energization end of the energization unit, the second resistance
The node that the cold end of first end and the first switch pipe is connected to form is the 3rd energization end of the energization unit, described
The node that second end of second resistance is connected with the controlled end of the second switch pipe is the controlled end of the energization unit.
Further, the trigger element includes：First switch, 3rd resistor, the 4th resistance and the first diode；
The first end of the first switch be the trigger element input, the first end of the 3rd resistor with it is described
The first end of first diode connects the second end of the first switch altogether, and the second end of the 3rd resistor is the trigger element
Power control end, the second end of first diode is connected with the first end of the 4th resistance, the 4th resistance
Second end is the power-off control terminal of the trigger element.
Further, the power-off unit includes：3rd switching tube, the 5th resistance and the first electric capacity；
The high potential of 3rd switching tube be the power-off unit the first output end, the low electricity of the 3rd switching tube
Position end is the second output end of the power-off unit, and the controlled end of the 3rd switching tube is the controlled end of the power-off unit,
The first end of 5th resistance and the first end of first electric capacity connect the controlled end of the 3rd switching tube altogether, and the described 5th
Second end of resistance and the second end of first electric capacity connect the cold end of the 3rd switching tube altogether.
Further, the first switch pipe is that triode, metal-oxide-semiconductor or IGBT are managed with the second switch pipe.
Further, the first switch pipe is p-type metal-oxide-semiconductor, and the hot end of first switch pipe is the p-type metal-oxide-semiconductor
Drain electrode, the cold end of the first switch pipe is the source electrode of the p-type metal-oxide-semiconductor, and the controlled end of the first switch pipe is
The grid of the p-type metal-oxide-semiconductor.
Further, the second switch pipe is NPN type triode, and the hot end of second switch pipe is the NPN type
The colelctor electrode of triode, the cold end of the second switch pipe are the emitter stage of the NPN type triode, the second switch
The controlled end of pipe is the base stage of the NPN type triode.
Further, the 3rd switching tube is triode, metal-oxide-semiconductor or IGBT pipes.
Further, the 3rd switching tube is NPN type triode, and the hot end of the 3rd switching tube is the NPN type
The colelctor electrode of triode, the cold end of the 3rd switching tube are the emitter stage of the NPN type triode, the 3rd switch
The controlled end of pipe is the base stage of the NPN type triode.
Another object of the present utility model is to provide a kind of power supply unit, including power supply, and the power supply unit also includes
On-off circuit as described above.
The utility model provides a kind of power supply unit and its on-off circuit, wherein, on-off circuit is connected with power supply, for supplying
Power on/off between user's control power supply and load, it includes：Energization unit, trigger element and power-off unit；Power supply is with opening
After powered-down road is connected, trigger element realizes the control system of switching on or off electricity to load according to operational motion or control signal；Trigger element root
Power control signal is exported to energization unit according to the first operational motion or the first control signal, energization unit is believed according to power control
Number work, and then forms path between power supply and load, load is started working；Trigger element according to the second operational motion or
Second control signal exports power down control signal to power-off unit, and power-off unit works according to power down control signal, and then in electricity
Open circuit is formed between source and load, load is stopped, realizes under conditions of toggle switch is not increased, reduce realization
The cost of the normally opened or normal off control of intelligent artifact internal circuit.
Brief description of the drawings
, below will be to embodiment or prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The required accompanying drawing used is briefly described in description, it should be apparent that, drawings in the following description are of the present utility model
Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of structural representation for on-off circuit that the utility model embodiment provides；
Fig. 2 is a kind of physical circuit figure for on-off circuit that the utility model embodiment provides；
Fig. 3 is a kind of structural representation for power supply unit that the utility model embodiment provides.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
The purpose of this utility model is to provide a kind of power supply unit and its on-off circuit, to solve in the prior art in reality
During the normally opened or normal off control of existing intelligent artifact internal circuit, the problem of cost of implementation is higher be present.
In order to illustrate technical scheme that the utility model embodiment is provided, said below by specific embodiment
It is bright.
Fig. 1 is a kind of structural representation for on-off circuit that the utility model the present embodiment provides, as shown in figure 1, a kind of
On-off circuit 100, it is connected with power supply 110, for for the power on/off between user's control power supply 110 and load 120.Switch electricity
Road 100 includes：Energization unit 10, trigger element 20 and power-off unit 30.
First energization end of energization unit 10 is connected with the first output end of power supply 110, and the second of energization unit 10 is powered
First output end at end, the second output end of power supply 110 and power-off unit 30 connects the first input end of load 120 altogether, is powered
3rd energization end of unit 10 is connected with the second input of load 120, input and the energization unit 10 of trigger element 20
First energization end is connected, and electric unit 10 is connected in the power control end of trigger element 20 altogether with the second output end of power-off unit 30
Controlled end, the power-off control terminal of trigger element 20 are connected with the controlled end of power-off unit 30.
After power supply 110 is connected with on-off circuit 100, trigger element 20 is realized to load according to operational motion or control signal
120 control system of switching on or off electricity.
Trigger element 20 exports power control signal according to the first operational motion or the first control signal to energization unit 10,
Energization unit 10 works according to power control signal, and then forms path between power supply 110 and load 120, opens load 120
Beginning work.
Trigger element 20 exports power down control signal according to the second operational motion or the second control signal to power-off unit 30,
Power-off unit 30 is worked according to power down control signal, and then open circuit is formed between power supply 110 and load 120, stops load 120
Only work.
It should be noted that the second output end of power supply 110 can be grounded, therefore in order to form closed-loop path with power supply 110,
While unit in on-off circuit 110 is connected with the second output end of power supply 110, equivalent to ground connection.
It is understood that the first operational motion and the second operational motion can be artificial operational motions, according to operation
What the duration differentiation trigger element 20 of action exported is switched on control signal or power down control signal.
Control signal can be being used to control trigger element 20 to send power control signal or powering off control for user's transmission
The instruction of signal.
It should be noted that control signal includes：First control signal or the second control signal, wherein, the first control letter
Number and the second control signal can be signal for controlling the operating time of trigger element 20.
For example, if the duration described by control signal is less than or equal to the first preset time, power control signal is generated；
If forming path between current power 110 and load 120, and load 120 normal works, if described by control signal when grow up
In first preset time, then power down control signal is generated.
In the present embodiment, when user, which operates trigger element 20, exports power control signal to energization unit 10, it is powered
Unit 10 forms path according to power control signal continuous firing, and then between power supply 110 and load 120, opens load 120
Beginning work and continuous firing, until when user operates trigger element 20 and exports power down control signal to power-off unit 10, powering off
Unit 30 is worked according to power down control signal, and open circuit is formed between power supply 110 and load 120, load 120 is stopped work
Make.
Fig. 2 shows a kind of physical circuit for on-off circuit that the utility model embodiment provides, as shown in Fig. 2 being powered
Unit 10 includes：First resistor R1, second resistance R2, first switch pipe Q1 and second switch pipe Q2.
The node that first resistor R1 first end is connected with first switch pipe Q1 hot end is the of energization unit 10
One energization end, first resistor R1 the second end connect second switch pipe Q2 hot end with first switch pipe Q1 controlled end altogether,
Second switch pipe Q2 cold end is the second energization end of energization unit 10, second resistance R2 first end and first switch pipe
The node that Q1 cold end is connected to form is the 3rd energization end of energization unit 10, and second resistance R2 the second end is opened with second
The node that pass pipe Q2 controlled end is connected is the controlled end of energization unit 10.
As shown in Fig. 2 trigger element 20 includes：First switch SW1,3rd resistor R3, the 4th resistance R4 and the one or two
Pole pipe D1.
First switch SW1 first end is the input of trigger element 20,3rd resistor R3 first end and the one or two pole
Pipe D1 first end connects first switch SW1 the second end altogether, and 3rd resistor R3 the second end is the power control of trigger element 20
End, the first diode D1 the second end are connected with the 4th resistance R4 first end, and the 4th resistance R4 the second end is trigger element
20 power-off control terminal.
As shown in Fig. 2 power-off unit 30 includes：3rd switching tube Q3, the 5th resistance R5 and the first electric capacity C1.
3rd switching tube Q3 high potential is the first output end of power-off unit 30, and the 3rd switching tube Q3 cold end is
Second output end of power-off unit 30, the 3rd switching tube Q3 controlled end are the controlled end of power-off unit 30, the 5th resistance R5's
First end and the first electric capacity C1 first end connect the 3rd switching tube Q3 controlled end, the 5th resistance R5 the second end and first altogether
Electric capacity C1 the second end connects the 3rd switching tube Q3 cold end altogether.
It should be noted that first switch pipe Q1, second switch pipe Q2 and the 3rd switching tube Q3 can be triode,
Metal-oxide-semiconductor or IGBT pipes.
As shown in Fig. 2 first switch pipe Q1 can be p-type metal-oxide-semiconductor Q1 in the present embodiment, first switch pipe Q1 height is electric
The drain electrode that position end is p-type metal-oxide-semiconductor Q1, first switch pipe Q1 cold end are p-type metal-oxide-semiconductor Q1 source electrode, first switch pipe Q1
Controlled end be p-type metal-oxide-semiconductor Q1 grid.
As shown in Fig. 2 second switch pipe Q2 can be NPN type triode Q2 in the present embodiment, second switch pipe Q2's
Hot end is NPN type triode Q2 colelctor electrode, and second switch pipe Q2 cold end is NPN type triode Q2 transmitting
Pole, second switch pipe Q2 controlled end are NPN type triode Q2 base stage.
As shown in Fig. 2 the 3rd switching tube Q3 is NPN type triode Q3 in the present embodiment, the 3rd switching tube Q3 height is electric
The colelctor electrode that position end is NPN type triode Q3, the 3rd switching tube Q3 cold end are NPN type triode Q3 emitter stage, the
Three switching tube Q3 controlled end is NPN type triode Q3 base stage.
The operation principle of on-off circuit provided by the utility model is illustrated below in conjunction with Fig. 2.
As shown in Fig. 2 after power supply 110 and on-off circuit 100 are connected, first switch pipe Q1 in on-off circuit 100, the
Two switching tube Q2 and the 3rd switching tube Q3 are in cut-off state, now open circuit between power supply 110 and load 120.
When first switch SW1 is switched on, and connection duration is less than or equal to the first preset time, what power supply 110 exported
First electric current flows into second switch pipe Q2 controlled end by 3rd resistor R3 so that and second switch pipe Q2 is turned on, while first
Switching tube Q1 is turned on, and then forms path between power supply 110 and load 120 so that load 120 is started working.Due to second
Resistance R2 is connected between first switch pipe Q1 cold end and second switch pipe Q2 controlled end, therefore works as first switch pipe
When Q1 is turned on, second resistance R2 to form interlocking between first switch pipe Q1 and second switch pipe Q2, and then keeps first to open
Pipe Q1 constant conduction is closed, and then load 120 is started working.
If forming path between power supply 110 and load 120, and 120 normal works are loaded, when first switch SW1 is connect
It is logical, and when connecting duration and being more than the first preset time, the second electric current that power supply 110 exports is electric by the first diode D1 and the 4th
R4 is hindered to charge for the first electric capacity C1.When the first electric capacity C1 both end voltage reaches preset voltage value so that the 3rd switching tube Q3
Conducting.Because the 3rd switching tube Q3 hot end is connected with second switch pipe Q2 controlled end, when the 3rd switching tube Q3 is turned on
When, the 3rd switching tube Q3 drags down second switch pipe Q2 controlled terminal voltage, and then unlocks first switch pipe Q1 and second switch pipe
Interlocking between Q2 so that first switch pipe Q1 ends, and then to form open circuit between power supply 110 and load 120, makes to bear
120 are carried to be stopped.
It should be noted that when the second electric current that power supply 110 exports charges for the first electric capacity C1, the two of the first electric capacity C1
The duration that terminal voltage reaches used in preset voltage value presses duration described in being equal to.
The utility model embodiment additionally provides a kind of power supply unit 200, as shown in figure 3, power supply unit 200, including electricity
Source 110, in addition to on-off circuit as described above 100.
Implementation or operation principle involved by above-mentioned power supply unit 200 describe in detail in the above-described embodiments,
Therefore here is omitted.
The utility model provides a kind of power supply unit and its on-off circuit, wherein, on-off circuit is connected with power supply, for supplying
Power on/off between user's control power supply and load, it includes：Energization unit, trigger element and power-off unit；Power supply is with opening
After powered-down road is connected, trigger element realizes the control system of switching on or off electricity to load according to operational motion or control signal；Trigger element root
Power control signal is exported to energization unit according to the first operational motion or the first control signal, energization unit is believed according to power control
Number work, and then forms path between power supply and load, load is started working；Trigger element according to the second operational motion or
Second control signal exports power down control signal to power-off unit, and power-off unit works according to power down control signal, and then in electricity
Open circuit is formed between source and load, load is stopped, realizes under conditions of toggle switch is not increased, reduce realization
The cost of the normally opened or normal off control of intelligent artifact internal circuit.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, make some equivalent substitutes or obvious modification without departing from the concept of the premise utility, and performance or
Purposes is identical, should all be considered as belonging to the scope of patent protection that the utility model is determined by the claims submitted.
Claims (10)
1. a kind of on-off circuit, is connected with power supply, for existing for the power on/off between user's control power supply and load, its feature
In the on-off circuit includes：Energization unit, trigger element and power-off unit；
First energization end of the energization unit is connected with the first output end of the power supply, and the second of the energization unit is powered
First output end at end, the second output end of the power supply and the power-off unit connects the first input end of the load altogether,
3rd energization end of the energization unit is connected with the second input of the load, the input of the trigger element with it is described
First energization end of energization unit is connected, and the power control end of the trigger element is total to the second output end of the power-off unit
The controlled end of the energization unit is connect, the power-off control terminal of the trigger element is connected with the controlled end of the power-off unit；
After the power supply is connected with the on-off circuit, the trigger element is realized to described according to operational motion or control signal
The control system of switching on or off electricity of load；
The trigger element exports power control signal according to the first operational motion or the first control signal to the energization unit,
The energization unit works according to the power control signal, and then forms path between the power supply and the load, makes
The load is started working；
The trigger element exports power down control signal according to the second operational motion or the second control signal to the power-off unit,
The power-off unit is worked according to the power down control signal, and then open circuit is formed between the power supply and the load, is made
The load is stopped.
2. on-off circuit as claimed in claim 1, it is characterised in that the energization unit includes：First resistor, the second electricity
Resistance, first switch pipe and second switch pipe；
The node that the first end of the first resistor is connected with the hot end of the first switch pipe is the energization unit
The controlled end of first energization end, the second end of the first resistor and the first switch pipe connects the height of the second switch pipe altogether
Potential end, the cold end of the second switch pipe are the second energization end of the energization unit, the first of the second resistance
End and the 3rd energization end that the node that the cold end of the first switch pipe is connected to form is the energization unit, described second
The node that second end of resistance is connected with the controlled end of the second switch pipe is the controlled end of the energization unit.
3. on-off circuit as claimed in claim 1, it is characterised in that the trigger element includes：First switch, the 3rd electricity
Resistance, the 4th resistance and the first diode；
The first end of the first switch be the trigger element input, the first end of the 3rd resistor and described first
The first end of diode connects the second end of the first switch altogether, and the second end of the 3rd resistor is the logical of the trigger element
Electric control end, the second end of first diode are connected with the first end of the 4th resistance, and the second of the 4th resistance
Hold the power-off control terminal for the trigger element.
4. on-off circuit as claimed in claim 1, it is characterised in that the power-off unit includes：3rd switching tube, the 5th electricity
Resistance and the first electric capacity；
The high potential of 3rd switching tube be the power-off unit the first output end, the cold end of the 3rd switching tube
For the second output end of the power-off unit, the controlled end of the 3rd switching tube is the controlled end of the power-off unit, described
The first end of 5th resistance and the first end of first electric capacity connect the controlled end of the 3rd switching tube, the 5th resistance altogether
The second end of the second end and first electric capacity connect the cold end of the 3rd switching tube altogether.
5. on-off circuit as claimed in claim 2, it is characterised in that the first switch pipe is with the second switch pipe
Triode, metal-oxide-semiconductor or IGBT pipes.
6. on-off circuit as claimed in claim 5, it is characterised in that the first switch pipe is p-type metal-oxide-semiconductor, first switch
The hot end of pipe is the drain electrode of the p-type metal-oxide-semiconductor, and the cold end of the first switch pipe is the source of the p-type metal-oxide-semiconductor
Pole, the controlled end of the first switch pipe are the grid of the p-type metal-oxide-semiconductor.
7. on-off circuit as claimed in claim 5, it is characterised in that the second switch pipe is NPN type triode, and second opens
The hot end for closing pipe is the colelctor electrode of the NPN type triode, and the cold end of the second switch pipe is the NPN type three
The emitter stage of pole pipe, the controlled end of the second switch pipe are the base stage of the NPN type triode.
8. on-off circuit as claimed in claim 4, it is characterised in that the 3rd switching tube is triode, metal-oxide-semiconductor or IGBT
Pipe.
9. on-off circuit as claimed in claim 8, it is characterised in that the 3rd switching tube is NPN type triode, and the 3rd opens
The hot end for closing pipe is the colelctor electrode of the NPN type triode, and the cold end of the 3rd switching tube is the NPN type three
The emitter stage of pole pipe, the controlled end of the 3rd switching tube are the base stage of the NPN type triode.
10. a kind of power supply unit, including power supply, it is characterised in that the power supply unit is also included as claim 1 to 9 is any
On-off circuit described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720055582.2U CN206790465U (en) | 2017-01-17 | 2017-01-17 | A kind of power supply unit and its on-off circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720055582.2U CN206790465U (en) | 2017-01-17 | 2017-01-17 | A kind of power supply unit and its on-off circuit |
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| Publication Number | Publication Date |
|---|---|
| CN206790465U true CN206790465U (en) | 2017-12-22 |
Family
ID=60703700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720055582.2U Active CN206790465U (en) | 2017-01-17 | 2017-01-17 | A kind of power supply unit and its on-off circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919728A (en) * | 2018-08-23 | 2018-11-30 | 深圳和而泰智能控制股份有限公司 | A kind of control circuit |
| CN112783007A (en) * | 2020-12-23 | 2021-05-11 | 广东美的白色家电技术创新中心有限公司 | Switch control circuit and electronic equipment |
-
2017
- 2017-01-17 CN CN201720055582.2U patent/CN206790465U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919728A (en) * | 2018-08-23 | 2018-11-30 | 深圳和而泰智能控制股份有限公司 | A kind of control circuit |
| CN108919728B (en) * | 2018-08-23 | 2023-09-26 | 深圳和而泰智能控制股份有限公司 | Control circuit |
| CN112783007A (en) * | 2020-12-23 | 2021-05-11 | 广东美的白色家电技术创新中心有限公司 | Switch control circuit and electronic equipment |
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