CN206991149U - A kind of on-off circuit and electronic equipment - Google Patents
A kind of on-off circuit and electronic equipment Download PDFInfo
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- CN206991149U CN206991149U CN201720706992.9U CN201720706992U CN206991149U CN 206991149 U CN206991149 U CN 206991149U CN 201720706992 U CN201720706992 U CN 201720706992U CN 206991149 U CN206991149 U CN 206991149U
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- circuit
- switching tube
- base stage
- working power
- operating circuit
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Abstract
This application discloses a kind of on-off circuit and electronic equipment, wherein, the on-off circuit controls the level state inputted to switching tube by base stage control module, to realize the control of the on off state of the switching tube, it is achieved thereby that the purpose of the connection status between control working power and operating circuit.Specifically, control the switching tube to turn on when the shift knob of the operating circuit is in first state, to realize the connection of the working power and operating circuit, operating voltage is provided for the operating circuit；Control the switching tube to end when the shift knob is in the second state, to realize the connection for disconnecting the working power and operating circuit, avoid unnecessary power wastage, and reduce the probability that operating circuit surprisingly leaks electricity.
Description
Technical field
The application is related to control circuit technical field of opening the light, more specifically to a kind of on-off circuit and electronic equipment.
Background technology
Electronic equipment is typically made up of working power and operating circuit, in the prior art, is closed even if electronic equipment is in
Closed state, working power and operating circuit can still keep connecting, and now some elements in operating circuit still can consume electricity
Amount, causes unnecessary waste；When even more serious, the working power and operating circuit that can not disconnect may result in electricity
Sub- equipment is in the closed state, the situation that operating circuit surprisingly leaks electricity.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of on-off circuit and electronic equipment, opened with realizing
When powered-down road is closed, working power and the purpose of operating circuit are cut off, to avoid unnecessary power wastage, and
Reduce the probability surprisingly to leak electricity.
To realize above-mentioned technical purpose, the utility model embodiment provides following technical scheme：
A kind of on-off circuit, for controlling the connection status between working power and operating circuit, the on-off circuit bag
Include：Base stage control module, voltage output module and switching tube；Wherein,
The base stage control module is connected with the base stage of the switching tube, at the shift knob of the operating circuit
To the base stage input low level of the switching tube when first state, so that the switching tube turns on, at the shift knob
To the base stage input high level of the switching tube when the second state, so that the switching tube ends, the first state is institute
State the triggering state of shift knob；
The input of the voltage output module is connected with the colelctor electrode of the switching tube, the voltage output module it is defeated
Go out end to be connected with the input of the operating circuit, for carrying to the operating circuit by partial pressure when the switching tube turns on
For operating voltage；
The emitter stage of the switching tube is connected with the first output end of the working power.
Optionally, the base stage control module includes：First resistor；
One end of the first resistor is connected with the base stage of the switching tube, the other end respectively with the working power
Two output ends connect with the shift knob；
When the shift knob is in first state, the second output end and the shift knob of the working power connect
Connect.
Optionally, the base stage control module also includes：Second resistance；
One end of the second resistance is connected to the connecting node of the first resistor and the shift knob, the other end and institute
State the second output end connection of working power.
Optionally, the voltage output module includes 3rd resistor and the 4th resistance；Wherein,
Input of the one end of the 3rd resistor as the voltage output module, the other end connect with the 4th resistance
Connect, the output end as the voltage output module；
4th resistance is grounded away from described 3rd resistor one end.
Optionally, the switching tube is triode.
Optionally, the triode is PNP type triode.
A kind of electronic equipment, including：Working power, operating circuit and the on-off circuit described in any one as described above；Wherein,
The working power is connected with operating circuit by the on-off circuit.
Optionally, the operating circuit is DC-DC circuit or low-dropout linear voltage-regulating circuit.
It can be seen from the above technical proposal that the utility model embodiment provides a kind of on-off circuit and electronic equipment,
Wherein, the on-off circuit controls the level state inputted to switching tube by base stage control module, to realize the switching tube
On off state control, it is achieved thereby that control working power and operating circuit between connection status purpose.Specifically,
Control the switching tube to turn on when the shift knob of the operating circuit is in first state, with realize the working power and
The connection of operating circuit, operating voltage is provided for the operating circuit；Institute is controlled when the shift knob is in the second state
Switching tube cut-off is stated, to realize the connection for disconnecting the working power and operating circuit, avoids unnecessary power wastage, and
And reduce the probability that operating circuit surprisingly leaks electricity.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing of offer.
Fig. 1 is a kind of electrical block diagram for on-off circuit that one embodiment of the application provides；
Fig. 2 is a kind of electrical block diagram for on-off circuit that another embodiment of the application provides；
Fig. 3 is a kind of electrical block diagram for on-off circuit that another embodiment of the application provides；
Fig. 4 is a kind of electrical block diagram for on-off circuit that the further embodiment of the application provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
The embodiment of the present application provides a kind of on-off circuit, as shown in figure 1, for control working power and operating circuit it
Between connection status, the on-off circuit includes：Base stage control module 100, voltage output module 200 and switching tube Q；Wherein,
The base stage control module 100 is connected with the base stage of the switching tube Q, for being pressed in the switch of the operating circuit
To the base stage input low level of the switching tube Q when button is in first state, so that the switching tube Q is turned on, in the switch
To the base stage input high level of the switching tube Q when button is in the second state, so that the switching tube Q ends, described first
State is the triggering state of the shift knob；
The input of the voltage output module 200 is connected with the colelctor electrode of the switching tube Q, the voltage output module
200 output end is connected with the input of the operating circuit, for when the switching tube Q turns on by partial pressure to the work
Make circuit and operating voltage is provided；
The emitter stage of the switching tube Q is connected with the first output end of the working power.
The on-off circuit controls the level state inputted to switching tube Q by base stage control module 100, with described in realization
The control of switching tube Q on off state, it is achieved thereby that the purpose of the connection status between control working power and operating circuit.
Specifically, the switching tube Q is controlled to turn on when the shift knob of the operating circuit is in first state, to realize the work
Make the connection of power supply and operating circuit, operating voltage is provided for the operating circuit；When the shift knob is in the second state
When control the switching tube Q to end, to realize the connection for disconnecting the working power and operating circuit, avoid unnecessary electricity
Power wastes, and reduces the probability that operating circuit surprisingly leaks electricity.
On the basis of above-described embodiment, one embodiment of the application provides a kind of feasible base stage control module
100 composition, as shown in Fig. 2 the base stage control module 100 includes：First resistor R1；
One end of the first resistor R1 is connected with the base stage of the switching tube Q, the other end respectively with the working power
The second output end connected with the shift knob；
When the shift knob is in first state, the second output end and the shift knob of the working power connect
Connect.
It should be noted that due to the presence of the first resistor R1, when the shift knob is in first state, institute
The second output end for stating working power is connected with the shift knob, and now the switching tube Q is shorted, its base stage input voltage
It is zero, now the switching tube Q is in the conduction state, to realize the purpose for connecting the working power and operating circuit, work
The voltage that power supply provides exports after the partial pressure by the voltage output module 200.
In the present embodiment, the switching tube Q is triode, and more specifically, the triode is PNP type triode,
It is in the conduction state i.e. as the big 0.7V of the voltage of the voltage ratio base stage of emitter stage.
But when the second output end of the working power is connected with the shift knob, it is possible that electric current is excessive
The problem of, therefore, in another embodiment of the application, as shown in figure 3, the base stage control module 100 also includes：Second
Resistance R2；
An end of the second resistance R2 is connected to the first resistor R1 and the shift knob connecting node, the other end
It is connected with the second output end of the working power.
The second resistance R2 serves the effect of current limliting, avoid the second output end when the working power with it is described
When shift knob connects, it is possible that the problem of electric current is excessive.PWKEY in Fig. 3 represents the input of the shift knob.
On the basis of above-described embodiment, another embodiment of the application provides a kind of feasible voltage output module
200 composition, as shown in figure 4, the voltage output module 200 includes 3rd resistor R3 and the 4th resistance R4；Wherein,
Input of the one end of the 3rd resistor R3 as the voltage output module 200, the other end and the described 4th
Resistance R4 connections, the output end as the voltage output module 200；
The 4th resistance R4 is grounded away from described 3rd resistor R3 one end.
With reference to the on-off circuit shown in figure 4, the voltage output module 200 is when the switching tube Q turns on to the work
The operating voltage for making circuit offer meets equation below；
Wherein, BAT_EN represents what the voltage output module 200 exported
Operating voltage, BAT_IN are the voltage of working power output, and its value is equal to BAT-IN1 or BAT-IN2；R3 is the 3rd electricity
R3 resistance value is hindered, R4 is the 4th resistance R4 resistance value.
From above formula, the value of the operating voltage of the final output of voltage output module 200 is by work electricity
Voltage, 3rd resistor R3 and the 4th resistance R4 that source exports resistance value together decide on, in practical application, can pass through regulation
Above three parameter provides the purpose of different operating voltages to realize to operating circuit.
Accordingly, the embodiment of the present application additionally provides a kind of electronic equipment, including working power, operating circuit and as described above
On-off circuit described in any embodiment；Wherein,
The working power is connected with operating circuit by the on-off circuit.
The species of the operating circuit includes but is not limited to DC-DC circuit, voltage difference linear voltage-stabilizing circuit (low
Dropout regulator, LDO) and AC-DC circuits.
In summary, the embodiment of the present application provides a kind of on-off circuit and electronic equipment, wherein, the on-off circuit leads to
Cross base stage control module 100 and control the level state inputted to switching tube Q, to realize the control of the on off state of the switching tube Q
System, it is achieved thereby that the purpose of the connection status between control working power and operating circuit.Specifically, when the operating circuit
Shift knob control when being in first state the switching tube Q to turn on, to realize the company of the working power and operating circuit
Connect, operating voltage is provided for the operating circuit；The switching tube Q is controlled to cut when the shift knob is in the second state
Only, to realize the connection of the disconnection working power and operating circuit, unnecessary power wastage is avoided, and reduce work
Make the probability that circuit surprisingly leaks electricity.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (8)
1. a kind of on-off circuit, it is characterised in that described to open for controlling the connection status between working power and operating circuit
Powered-down road includes：Base stage control module, voltage output module and switching tube；Wherein,
The base stage control module is connected with the base stage of the switching tube, and the is in for the shift knob in the operating circuit
To the base stage input low level of the switching tube during one state, so that the switching tube turns on, the is in the shift knob
To the base stage input high level of the switching tube during two-state, so that the switching tube ends, the first state is opened to be described
Close the triggering state of button；
The input of the voltage output module is connected with the colelctor electrode of the switching tube, the output end of the voltage output module
It is connected with the input of the operating circuit, for providing work to the operating circuit by partial pressure when the switching tube turns on
Make voltage；
The emitter stage of the switching tube is connected with the first output end of the working power.
2. on-off circuit according to claim 1, it is characterised in that the base stage control module includes：First resistor；
One end of the first resistor is connected with the base stage of the switching tube, and the other end is defeated with the second of the working power respectively
Go out end to connect with the shift knob；
When the shift knob is in first state, the second output end of the working power is connected with the shift knob.
3. on-off circuit according to claim 2, it is characterised in that the base stage control module also includes：Second resistance；
One end of the second resistance is connected to the connecting node of the first resistor and the shift knob, the other end and the work
Make the second output end connection of power supply.
4. on-off circuit according to claim 1, it is characterised in that the voltage output module includes 3rd resistor and the
Four resistance；Wherein,
Input of the one end of the 3rd resistor as the voltage output module, the other end are connected with the 4th resistance,
Output end as the voltage output module；
4th resistance is grounded away from described 3rd resistor one end.
5. on-off circuit according to claim 1, it is characterised in that the switching tube is triode.
6. on-off circuit according to claim 5, it is characterised in that the triode is PNP type triode.
7. a kind of electronic equipment, it is characterised in that including：Working power, operating circuit and as described in claim any one of 1-6
On-off circuit；Wherein,
The working power is connected with operating circuit by the on-off circuit.
8. electronic equipment according to claim 7, it is characterised in that the operating circuit is DC-DC circuit or low voltage difference
Linear voltage-stabilizing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720706992.9U CN206991149U (en) | 2017-06-16 | 2017-06-16 | A kind of on-off circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720706992.9U CN206991149U (en) | 2017-06-16 | 2017-06-16 | A kind of on-off circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206991149U true CN206991149U (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720706992.9U Active CN206991149U (en) | 2017-06-16 | 2017-06-16 | A kind of on-off circuit and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107066012A (en) * | 2017-06-16 | 2017-08-18 | 上海思依暄机器人科技股份有限公司 | A kind of on-off circuit and electronic equipment |
-
2017
- 2017-06-16 CN CN201720706992.9U patent/CN206991149U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107066012A (en) * | 2017-06-16 | 2017-08-18 | 上海思依暄机器人科技股份有限公司 | A kind of on-off circuit and electronic equipment |
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