CN207783202U - A kind of constant pressure light modulation quadruple circuit - Google Patents
A kind of constant pressure light modulation quadruple circuit Download PDFInfo
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- CN207783202U CN207783202U CN201721577174.XU CN201721577174U CN207783202U CN 207783202 U CN207783202 U CN 207783202U CN 201721577174 U CN201721577174 U CN 201721577174U CN 207783202 U CN207783202 U CN 207783202U
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Abstract
The utility model provides a kind of constant pressure light modulation quadruple circuit, and the quadruple circuit includes:Ac-input power supply circuit；The capacitance C1 being connect with the ac-input power supply circuit；Resistance R1, R2, R3 and the R4 being connect with the capacitance C1；The pulse width modulation circuit U1 being connect with the capacitance C1；The thyristor regulating optical circuit being connect with the pulse width modulation circuit U1.Four kinds of dimming modes are uniformly converted to pwm light modulations by this programme with simplest mode, the method for solving conventionally employed CPU controls light modulation.
Description
Technical field
The utility model is related to circuit fields, and quadruple circuit is dimmed more particularly to a kind of constant pressure.
Background technology
Traditional constant pressure light adjusting circuit generally generates the sawtooth that a 1000Hz amplitude is 9.5V or so by U4A, U4B and U3
Wave Vc is detected the angle of flow of input voltage by R1, R2, R3, R4, C2.When non-dimmable, when being transferred to secondary side by U2, the current potential of Va
The current potential of about 10.5V or so, Ub point is about 10V or so, at this time Vb ＞ Vc, and U4C exports high level, and Q1 is fully on, electricity
Source is operated in the mode that duty ratio is 100%.However, traditional constant pressure light adjusting circuit can only be modulated by a kind of mode, generally by
CPU is controlled, relatively simple, and function is less.
Utility model content
Based on this, it is necessary to provide a kind of constant pressure light modulation quadruple circuit.
A kind of constant pressure light modulation quadruple circuit, the quadruple circuit include:
Ac-input power supply circuit；
The capacitance C1 being connect with the ac-input power supply circuit；
Resistance R1, R2, R3 and the R4 being connect with the capacitance C1；
The pulse width modulation circuit U1 being connect with the capacitance C1；
The thyristor regulating optical circuit being connect with the pulse width modulation circuit U1.
The quadruple circuit further includes in one of the embodiments,：
Linearity light adjusting device is connect with the thyristor regulating optical circuit, for carrying out linearity light adjusting to circuit.
The quadruple circuit further includes in one of the embodiments,：
Winding T1 is connect with the linearity light adjusting device, for carrying out impedance coupler to linearity light adjusting device.
The quadruple circuit further includes in one of the embodiments,：
First difference amplifier is connect with the winding T1, for carrying out first time amplification to dim signal.
The quadruple circuit further includes in one of the embodiments,：
Second difference amplifier is connect with first difference amplifier, is amplified for carrying out second to dim signal.
The quadruple circuit further includes in one of the embodiments,：
Triode Q1, between the triode Q1 connections and the winding T1 and the first difference amplifier.
Second difference amplifier is difference common mode amplifier in one of the embodiments,.
A kind of implementation method of constant pressure light modulation quadruple circuit, the method further include：
One ac-input power supply circuit is provided；
The ac-input power supply circuit is controlled to be attached in capacitance C1；
It controls the capacitance C1 and is connected to resistance R1, R2, R3 and R4；
It controls the capacitance C1 and is connected to pulse width modulation circuit U1；
Control the thyristor regulating optical circuit of the pulse width modulation circuit U1 connections.
The method further includes in one of the embodiments,：
One linearity light adjusting device is provided, is connect with the thyristor regulating optical circuit, for carrying out linearity light adjusting to circuit.
The method further includes in one of the embodiments,：
One winding T1 is provided, is connect with the linearity light adjusting device, for carrying out impedance coupler to linearity light adjusting device.
Advantageous effect：
The utility model provides a kind of constant pressure light modulation quadruple circuit, and the quadruple circuit includes:Ac-input power supply
Circuit；The capacitance C1 being connect with the ac-input power supply circuit；Resistance R1, R2, R3 and the R4 being connect with the capacitance C1；With institute
State the pulse width modulation circuit U1 of capacitance C1 connections；The thyristor regulating photoelectricity being connect with the pulse width modulation circuit U1
Road.Four kinds of dimming modes are uniformly converted to pwm light modulations by this programme with simplest mode, solve conventionally employed CPU controls
The method of light modulation.
Description of the drawings
Fig. 1 is the circuit diagram that a kind of constant pressure dims quadruple circuit.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Fig. 1, a kind of constant pressure light modulation quadruple circuit are please referred to, the quadruple circuit includes:
Ac-input power supply circuit；
The capacitance C1 being connect with the ac-input power supply circuit；
Resistance R1, R2, R3 and the R4 being connect with the capacitance C1；
The pulse width modulation circuit U1 being connect with the capacitance C1；
The thyristor regulating optical circuit being connect with the pulse width modulation circuit U1.
The quadruple circuit further includes in one of the embodiments,：
Linearity light adjusting device is connect with the thyristor regulating optical circuit, for carrying out linearity light adjusting to circuit.
The quadruple circuit further includes in one of the embodiments,：
Winding T1 is connect with the linearity light adjusting device, for carrying out impedance coupler to linearity light adjusting device.
The quadruple circuit further includes in one of the embodiments,：
First difference amplifier is connect with the winding T1, for carrying out first time amplification to dim signal.
The quadruple circuit further includes in one of the embodiments,：
Second difference amplifier is connect with first difference amplifier, is amplified for carrying out second to dim signal.
The quadruple circuit further includes in one of the embodiments,：
Triode Q1, between the triode Q1 connections and the winding T1 and the first difference amplifier.
Second difference amplifier is difference common mode amplifier in one of the embodiments,.
It should be noted that this programme mainly generates the saw that a 1000Hz amplitude is 9.5V or so by U4A, U4B and U3
Tooth wave Vc is detected the angle of flow of input voltage by R1, R2, R3, R4, C2.When non-dimmable, when being transferred to secondary side by U2, the electricity of Va
Position is about 10.5V or so, and the current potential of Ub points is about 10V or so, at this time Vb ＞ Vc, and U4C exports high level, and Q1 is fully on,
The mode that power work is 100% in duty ratio.
In one of the embodiments, when thyristor regulating light, with the reduction of the angle of flow, the current potential of Va points declines.Such as
The duty ratio of figure below, Vd reduces with the reduction of the angle of flow, i.e. the duty ratio of Q1 conductings reduces, and output duty cycle reduces.
When controllable silicon light modulation does not connect, and DIM+, DIM- connect 0-10V light modulators, the current potential of Vb is Vb=Udim+0.5V.With
The reduction of Udim, output duty cycle reduce.
When controllable silicon light modulation does not connect, and DIM+, DIM- connect the pwm signal that amplitude is 10V, the current potential of Vb is the pulse of PWM
The current potential of signal, Vd is pwm signal, exports the duty ratio for PWM.
When controllable silicon light modulation does not connect, when DIM+, DIM- wiring light modulator, reduce with the resistance of linearity light adjusting device, Vb
Current potential decline, the duty ratio of output reduces.
In summary：Four kinds of dimming modes are uniformly converted to pwm light modulations by this programme with simplest mode.Solves biography
The method that system is dimmed using CPU controls.
The utility model provides a kind of constant pressure light modulation quadruple circuit, and the quadruple circuit includes:Ac-input power supply
Circuit；The capacitance C1 being connect with the ac-input power supply circuit；Resistance R1, R2, R3 and the R4 being connect with the capacitance C1；With institute
State the pulse width modulation circuit U1 of capacitance C1 connections；The thyristor regulating photoelectricity being connect with the pulse width modulation circuit U1
Road.Four kinds of dimming modes are uniformly converted to pwm light modulations by this programme with simplest mode, solve conventionally employed CPU controls
The method of light modulation.
A kind of implementation method of constant pressure light modulation quadruple circuit, the method further include：
One ac-input power supply circuit is provided；
The ac-input power supply circuit is controlled to be attached in capacitance C1；
It controls the capacitance C1 and is connected to resistance R1, R2, R3 and R4；
It controls the capacitance C1 and is connected to pulse width modulation circuit U1；
Control the thyristor regulating optical circuit of the pulse width modulation circuit U1 connections.
The method further includes in one of the embodiments,：
One linearity light adjusting device is provided, is connect with the thyristor regulating optical circuit, for carrying out linearity light adjusting to circuit.
The method further includes in one of the embodiments,：
One winding T1 is provided, is connect with the linearity light adjusting device, for carrying out impedance coupler to linearity light adjusting device.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (7)
1. a kind of constant pressure dims quadruple circuit, which is characterized in that the quadruple circuit includes:
Ac-input power supply circuit；
The capacitance C1 being connect with the ac-input power supply circuit；
Resistance R1, R2, R3 and the R4 being connect with the capacitance C1；
The pulse width modulation circuit U1 being connect with the capacitance C1；
The thyristor regulating optical circuit being connect with the pulse width modulation circuit U1.
2. quadruple circuit according to claim 1, which is characterized in that the quadruple circuit further includes：
Linearity light adjusting device is connect with the thyristor regulating optical circuit, for carrying out linearity light adjusting to circuit.
3. quadruple circuit according to claim 2, which is characterized in that the quadruple circuit further includes：
Winding T1 is connect with the linearity light adjusting device, for carrying out impedance coupler to linearity light adjusting device.
4. quadruple circuit according to claim 3, which is characterized in that the quadruple circuit further includes：
First difference amplifier is connect with the winding T1, for carrying out first time amplification to dim signal.
5. quadruple circuit according to claim 4, which is characterized in that the quadruple circuit further includes：
Second difference amplifier is connect with first difference amplifier, is amplified for carrying out second to dim signal.
6. quadruple circuit according to claim 5, which is characterized in that the quadruple circuit further includes：
Triode Q1, between the triode Q1 connections and the winding T1 and the first difference amplifier.
7. quadruple circuit according to claim 5, which is characterized in that second difference amplifier is that difference common mode is put
Big device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721577174.XU CN207783202U (en) | 2017-11-23 | 2017-11-23 | A kind of constant pressure light modulation quadruple circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721577174.XU CN207783202U (en) | 2017-11-23 | 2017-11-23 | A kind of constant pressure light modulation quadruple circuit |
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| Publication Number | Publication Date |
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| CN207783202U true CN207783202U (en) | 2018-08-28 |
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| CN201721577174.XU Active CN207783202U (en) | 2017-11-23 | 2017-11-23 | A kind of constant pressure light modulation quadruple circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107787092A (en) * | 2017-11-23 | 2018-03-09 | 广东新昇电业科技股份有限公司 | A kind of constant pressure light modulation four-in-one circuit and its method |
-
2017
- 2017-11-23 CN CN201721577174.XU patent/CN207783202U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107787092A (en) * | 2017-11-23 | 2018-03-09 | 广东新昇电业科技股份有限公司 | A kind of constant pressure light modulation four-in-one circuit and its method |
| CN107787092B (en) * | 2017-11-23 | 2024-05-07 | 广东新昇电业科技股份有限公司 | Constant voltage dimming four-in-one circuit and method thereof |
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