CN207882787U - Supply voltage adjusts circuit - Google Patents
Supply voltage adjusts circuit Download PDFInfo
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- CN207882787U CN207882787U CN201820099150.6U CN201820099150U CN207882787U CN 207882787 U CN207882787 U CN 207882787U CN 201820099150 U CN201820099150 U CN 201820099150U CN 207882787 U CN207882787 U CN 207882787U
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- triode
- circuit
- resistance
- resistance adjustment
- supply voltage
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Abstract
The utility model discloses a kind of supply voltages to adjust circuit, and resistance adjustment circuit, between ground and power panel, the resistance adjustment circuit includes the resistance adjustment circuit in parallel：Resistance adjustment unit, is series between power panel and ground；Start unit is connected with the resistance adjustment unit, for controlling the break-make between resistance adjustment unit and circuit board；Trigger element is electrically connected with the start unit, is started for triggering start unit.By adjusting the resistance value of each slide rheostat Rx in circuit, so that circuit can be in different operating at voltages.When operating voltage is in different voltages, corresponding light emitting diode will be lighted, convenient for determining circuit works under which operating voltage.
Description
Technical field
The utility model is related to supply voltage regulation technology field, more particularly to a kind of supply voltage adjusts circuit.
Background technology
In the circuit of automobile controller product, many controller products needs are tested under different voltage, work
Make, seem cumbersome sometimes in circuit external regulating power source voltage, and the required voltage of different product has that phase difference is larger,
It is not easy to adjust.
Utility model content
The purpose of this utility model is to provide a kind of supply voltage adjusting circuit, the voltage of adjustable source, and adjusts model
It encloses wide.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of supply voltage adjusts circuit, resistance adjustment circuit, the resistance adjustment circuit in parallel in ground and power panel it
Between, the resistance adjustment circuit includes：
Resistance adjustment unit, is series between power panel and ground；
Start unit is connected with the resistance adjustment unit, logical between resistance adjustment unit and circuit board for controlling
It is disconnected；
Trigger element is electrically connected with the start unit, is started for triggering start unit.
Further, the resistance adjustment unit includes rheostat Rx.
Further, the start unit includes starting voltage V1, resistance R1 and triode Q1, the startup voltage V1 strings
It is electrically connected with the base stage of triode Q1 after connection resistance R1, the collector of the triode Q1 is electrically connected rheostat Rx, three pole
The emitter of pipe Q1 is grounded.
Further, also it is in series with light-emitting component L between the resistance R1 and triode Q1.
Further, the trigger element include resistance R2 and the one end triode Q2, the resistance R2 be voltage input end,
The other end is electrically connected the base stage of triode Q2, and the triode Q2 collectors are electrically connected between resistance R1 and triode Q1 base stages
Tie point, the emitter of the triode Q2 and the emitter of triode Q1 are altogether.
Further, the light-emitting component L is light emitting diode.
Further, the rheostat Rx is slide rheostat or resistor or potentiometer.
In conclusion the utility model has the advantages that：By adjusting each slide rheostat in circuit
Resistance value, so that circuit can be in different operating at voltages.It is corresponding to shine when operating voltage is in different voltages
Diode will be lighted, convenient for determining circuit works under which operating voltage.
Description of the drawings
Fig. 1 is the circuit diagram of the utility model embodiment.
In figure, 1, resistance adjustment circuit；11, resistance adjustment unit；12, start unit；13, trigger element.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as within the protection scope of the present utility model all protected by Patent Law.
A kind of supply voltage adjusts circuit, resistance adjustment circuit 1, the resistance adjustment circuit 1 be parallel to and power panel
Between, the resistance adjustment circuit 1 includes：Resistance adjustment unit 11, is series between power panel and ground；Start unit 12, with
The resistance adjustment unit 11 is connected, for controlling the break-make between resistance adjustment unit 11 and circuit board；Trigger element 13, with
The start unit 12 is electrically connected, and is started for triggering start unit 12.
In the present embodiment, resistance adjustment unit 11 includes rheostat Rx, and rheostat Rx can be slide rheostat or electricity
Hinder device or potentiometer.
Start unit 12 includes after starting voltage V1, resistance R1 and triode Q1, the startup voltage V1 series resistances R1
It is electrically connected with the base stage of triode Q1, the collector of the triode Q1 is electrically connected rheostat Rx, the transmitting of the triode Q1
Pole is grounded.Light-emitting component L is also in series between resistance R1 and triode Q1.It is which 1 access of resistance adjustment circuit for showing.
In the present embodiment, light-emitting component L is light emitting diode, can also be small bulbs etc. in other embodiments.
Trigger element 13 includes that resistance R2 and the one end triode Q2, the resistance R2 are electrically connected for voltage input end, the other end
The base stage of triode Q2 is connect, the triode Q2 collectors are electrically connected to the tie point between resistance R1 and triode Q1 base stages,
The emitter of the triode Q2 and the emitter of triode Q1 are altogether.
Circuit operation principle:
During regulating power source voltage, after the voltage of the voltage input end of control resistance R2 obtains electric, triode Q2
It is sequentially turned on triode Q1, lumination of light emitting diode, rheostat Rx accesses between power panel and ground.So far, can make multiple
Rheostat Rx accesses in parallel adjust the size of all-in resistance, the resistance of the rheostat Rx of access are also adjusted to adjust all-in resistance
Size.All-in resistance is electrically connected as feedback resistance with power panel, all-in resistance variation, the voltage of corresponding power panel output also phase
The variation answered.
Claims (7)
1. a kind of supply voltage adjusts circuit, which is characterized in that resistance adjustment circuit (1), the resistance adjustment circuit (1) are in parallel
Between ground and power panel, the resistance adjustment circuit (1) includes：
Resistance adjustment unit (11), is series between power panel and ground；
Start unit (12) is connected with the resistance adjustment unit (11), for controlling resistance adjustment unit (11) and circuit board
Between break-make；
Trigger element (13) is electrically connected with the start unit (12), is started for triggering start unit (12).
2. supply voltage according to claim 1 adjusts circuit, which is characterized in that the resistance adjustment unit (11) includes
Rheostat Rx.
3. supply voltage according to claim 2 adjusts circuit, which is characterized in that the start unit (12) includes starting
It is electrically connected with the base stage of triode Q1 after voltage V1, resistance R1 and triode Q1, the startup voltage V1 series resistances R1, it is described
The emitter ground connection of collector electrical connection the rheostat Rx, the triode Q1 of triode Q1.
4. supply voltage according to claim 3 adjusts circuit, which is characterized in that between the resistance R1 and triode Q1
Also it is in series with light-emitting component L.
5. supply voltage according to claim 4 adjusts circuit, which is characterized in that the trigger element (13) includes resistance
R2 and the one end triode Q2, the resistance R2 are the base stage of voltage input end, other end electrical connection triode Q2, the triode
Q2 collectors are electrically connected to the tie point between resistance R1 and triode Q1 base stages, the emitter and triode of the triode Q2
The emitter of Q1 is altogether.
6. supply voltage according to claim 5 adjusts circuit, which is characterized in that the light-emitting component L is light-emitting diodes
Pipe.
7. supply voltage according to claim 6 adjusts circuit, which is characterized in that the rheostat Rx is slide rheostat
Or resistor or potentiometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820099150.6U CN207882787U (en) | 2018-01-19 | 2018-01-19 | Supply voltage adjusts circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820099150.6U CN207882787U (en) | 2018-01-19 | 2018-01-19 | Supply voltage adjusts circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207882787U true CN207882787U (en) | 2018-09-18 |
Family
ID=63507613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820099150.6U Active CN207882787U (en) | 2018-01-19 | 2018-01-19 | Supply voltage adjusts circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207882787U (en) |
-
2018
- 2018-01-19 CN CN201820099150.6U patent/CN207882787U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |