CN206042472U - Lighting adjustment control circuit - Google Patents
Lighting adjustment control circuit Download PDFInfo
- Publication number
- CN206042472U CN206042472U CN201620950038.XU CN201620950038U CN206042472U CN 206042472 U CN206042472 U CN 206042472U CN 201620950038 U CN201620950038 U CN 201620950038U CN 206042472 U CN206042472 U CN 206042472U
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- type triode
- control circuit
- adjusting control
- power input
- adjustable potentiometer
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Abstract
The utility model relates to a field of adjusting luminance especially relates to a lighting adjustment control circuit. The utility model discloses in, through the resistance of regulator potentiometer for lighting adjustment control circuit's output voltage is the linear change, and in the regulator potentiometer, the voltage of lighting adjustment control circuit output can be the linear change, the effect of adjusting luminance preferred along with the change of the resistance of potentiometre.
Description
Technical field
This utility model is related to a kind of light modulation field, more particularly to a kind of adjusting control circuit.
Background technology
Existing light adjusting circuit can enter the regulation and control of line output voltage by changing the method for resistance, but current
Dimmer voltage curve is typically presented nonlinear change between resistance, as light adjusting circuit output voltage is in nonlinear change, leads
The illumination effect of electroluminescence device is bad, i.e., dimming effect is poor.
Utility model content
For the problem that prior art is present, now there is provided a kind of adjusting control circuit.
Specific technical scheme is as follows：
A kind of adjusting control circuit, including：
Power input, input supply voltage；
First adjustable potentiometer, one end of first adjustable potentiometer connect the power input；
NPN type triode, the colelctor electrode of the NPN type triode connect the power input, the NPN type triode
Emitter stage connect the opposite other end of first adjustable potentiometer；
PNP type triode, the emitter stage of the PNP type triode connect the power input, the PNP type triode
Colelctor electrode connect the base stage of the NPN type triode, the base stage of the PNP type triode connects first adjustable potentiometer
One end.
Preferably, the supply voltage is 1-10V.
Preferably, the emitter stage of the PNP type triode is connected with the power input by first resistor.
Preferably, also including the second adjustable potentiometer, one end of second adjustable potentiometer connects the power input
End, the opposite other end of second adjustable potentiometer are connected with one end of first adjustable potentiometer.
Preferably, the adjustable resistance is connected with the power input by second resistance.
Preferably, the opposite other end of first adjustable potentiometer passes through the 5th resistance eutral grounding.
Preferably, the grounded emitter of the NPN type triode.
Preferably, also include
Electric capacity, Rhizoma Nelumbinis are connected between the emitter stage of the base stage of the PNP type triode and the NPN type triode.
Preferably, the amplification of the NPN type triode is more than 1000.
Preferably, the amplification of the PNP type triode is 90-300.
The beneficial effect of above-mentioned technical proposal is：
In above-mentioned technical proposal, by the resistance of regulator potentiometer so that the output voltage of adjusting control circuit is linear
Change, when regulator potentiometer, the voltage of adjusting control circuit output can be in line with the change of the resistance of potentiometer
Property change, dimming effect is preferable.
Description of the drawings
Fig. 1 is a kind of structural representation of the embodiment of adjusting control circuit of this utility model.
Specific embodiment
It should be noted that in the case where not conflicting, following technical proposals can be mutually combined between technical characteristic.
Below in conjunction with the accompanying drawings specific embodiment of the present utility model is further described：
A kind of adjusting control circuit is present embodiments provided, as shown in figure 1, the adjusting control circuit includes a power input
End, the power input can be input into the voltage of 1-10V, and adjusting control circuit also includes NPN type triode Q1 and a positive-negative-positive
The amplification of audion Q2, wherein NPN type triode Q1 can be more than 1000 times, and the amplification of PNP type triode Q2 can
Think 90-300 times.
The colelctor electrode of NPN type triode Q1 is connected with power input, and the emitter stage of NPN type triode Q1 can be grounded
GND, it is also possible to connect a reference voltage, the emitter stage of NPN type triode Q1 is the outfan of adjusting control circuit, by NPN type
The control source of the emitter stage output of audion Q1 to a luminescent device, lighting the luminescent device, send out by PNP type triode Q2
Emitter-base bandgap grading is connected with power input by first resistor R1, the colelctor electrode of PNP type triode Q2 and the base of NPN type triode Q1
Pole connects.
The adjusting control circuit of the present embodiment also includes one first adjustable potentiometer R4, one end of the first adjustable potentiometer R4
It is connected with power input by one second adjustable potentiometer R3, second resistance R2, the opposite other end of the first adjustable resistance R4
GND is grounded by one the 5th resistance R5, the wherein base stage of PNP type triode Q2 connects the first adjustable potentiometer R4 and second respectively
Adjustable potentiometer R3.
It should be noted that the first adjustable potentiometer R4 in the present embodiment is adjusted manually to provide one for user's light modulation
End, during the resistance of the first adjustable potentiometer R4 is changed, the voltage in adjusting control circuit can change user, and
And the difference of the manufacturing process due to PNP type triode Q2, the electric current between the base stage of the audion and emitter stage can also be present
Certain difference, by adjusting the second adjustable potentiometer R3, to tackle the difference of different PNP type triode Q2 processing procedures so that
The conducting voltage of each PNP type triode reaches unanimity.
In adjusting control circuit in the present embodiment, an electric capacity C2 can be connected to base stage and the NPN of PNP type triode Q2 with Rhizoma Nelumbinis
The electric energy of power input input between the emitter stage of type audion Q1, can be stored, thinks that the base stage of PNP type triode Q2 is carried
For control signal so that PNP type triode Q2 is turned on.
The change in voltage in adjusting control circuit when the resistance of the first adjustable potentiometer R4 is adjusted is illustrated now,
When the resistance of the first adjustable potentiometer R4 increases, the base voltage of PNP type triode Q2 is reduced, PNP type triode Q2
Turn on for low level, the voltage increase of the collector and emitter of PNP type triode Q2, as NPN type triode Q1 is high electricity
Flat conducting, so now the voltage of NPN type triode Q1 base stage reduces, the electricity of the collector and emitter of NPN type triode Q1
Pressure increase, i.e. adjusting control circuit outfan are exported and are increased to the voltage of luminescent device, and the brightness of luminescent device increases.
The present embodiment mainly shows the brightness adjustment control of luminescent device, voltage-controlled dimming mode energy by way of voltage-regulation
The voltage of adjusting control circuit output is enough enabled linearly to change with the change of the resistance of the first adjustable potentiometer, it is real
Preferable dimming effect is showed.
To sum up, in above-mentioned technical proposal, by the resistance of regulator potentiometer so that the output voltage of adjusting control circuit is in
Linear change, when regulator potentiometer, the voltage of adjusting control circuit output can be with the change of the resistance of potentiometer
Linear to change, dimming effect is preferable.
By explanation and accompanying drawing, the exemplary embodiments of the ad hoc structure of specific embodiment are given, it is new based on this practicality
Type spirit, can also make other conversions.Although above-mentioned utility model proposes existing preferred embodiment, however, these contents
It is not intended as limitation.
For a person skilled in the art, after reading described above, various changes and modifications undoubtedly will be evident that.
Therefore, appending claims should regard the whole variations and modifications for covering true intention of the present utility model and scope as.
In Claims scope, any and all scope of equal value and content, are all considered as still belonging to intention of the present utility model and model
In enclosing.
Claims (8)
1. a kind of adjusting control circuit, it is characterised in that include：
Power input, input supply voltage；
First adjustable potentiometer, one end of first adjustable potentiometer connect the power input；
NPN type triode, the colelctor electrode of the NPN type triode connect the power input, and the NPN type triode is sent out
Emitter-base bandgap grading connects the opposite other end of first adjustable potentiometer；
PNP type triode, the emitter stage of the PNP type triode connect the power input, the collection of the PNP type triode
Electrode connects the base stage of the NPN type triode, and the base stage of the PNP type triode connects the one of first adjustable potentiometer
End.
2. adjusting control circuit according to claim 1, it is characterised in that the supply voltage is 1-10V.
3. adjusting control circuit according to claim 1, it is characterised in that the emitter stage of the PNP type triode passes through
First resistor is connected with the power input.
4. adjusting control circuit according to claim 1, it is characterised in that also including the second adjustable potentiometer, described
One end of two adjustable potentiometers connects the power input, the opposite other end of second adjustable potentiometer and described first
One end connection of adjustable potentiometer.
5. adjusting control circuit according to claim 4, it is characterised in that the adjustable resistance passes through second resistance and institute
State power input connection.
6. adjusting control circuit according to claim 1, it is characterised in that first adjustable potentiometer it is relatively another
End is by the 5th resistance eutral grounding.
7. adjusting control circuit according to claim 1, it is characterised in that the grounded emitter of the NPN type triode.
8. adjusting control circuit according to claim 1, it is characterised in that also include
Electric capacity, Rhizoma Nelumbinis are connected between the emitter stage of the base stage of the PNP type triode and the NPN type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620950038.XU CN206042472U (en) | 2016-08-26 | 2016-08-26 | Lighting adjustment control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620950038.XU CN206042472U (en) | 2016-08-26 | 2016-08-26 | Lighting adjustment control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206042472U true CN206042472U (en) | 2017-03-22 |
Family
ID=58305279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620950038.XU Active CN206042472U (en) | 2016-08-26 | 2016-08-26 | Lighting adjustment control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206042472U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109275246A (en) * | 2018-09-17 | 2019-01-25 | 深圳市泰衡诺科技有限公司 | Flash control circuit and mobile terminal |
-
2016
- 2016-08-26 CN CN201620950038.XU patent/CN206042472U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109275246A (en) * | 2018-09-17 | 2019-01-25 | 深圳市泰衡诺科技有限公司 | Flash control circuit and mobile terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 122315000 Jianlan Road, Gaoxin District, Ningbo, Zhejiang Patentee after: Ningbo sainaibi Photoelectric Technology Co.,Ltd. Address before: No.56 Keda Road, hi tech Zone, Ningbo City, Zhejiang Province, 315000 Patentee before: NINGBO SNAPPY OPTOELECTRONICS Co.,Ltd. |