CN206212339U - A kind of thyristor regulating photocontrol circuit and LED lamp system - Google Patents
A kind of thyristor regulating photocontrol circuit and LED lamp system Download PDFInfo
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- CN206212339U CN206212339U CN201621170417.3U CN201621170417U CN206212339U CN 206212339 U CN206212339 U CN 206212339U CN 201621170417 U CN201621170417 U CN 201621170417U CN 206212339 U CN206212339 U CN 206212339U
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Abstract
The utility model discloses a kind of thyristor regulating photocontrol circuit, including constant voltage circuit, constant-current circuit, dim signal Acquisition Circuit and control circuit；Also disclose a kind of LED lamp system, including controllable silicon dimmer, LED lamp and described thyristor regulating photocontrol circuit, controllable silicon dimmer connects power supply, the output end of controllable silicon dimmer is connected with the input of thyristor regulating photocontrol circuit, and the output end of thyristor regulating photocontrol circuit is connected with the input of LED lamp.A kind of thyristor regulating photocontrol circuit is suitable for different controllable silicon dimmers in the utility model, and practicality is high.A kind of LED lamp system in the utility model, the work of LED lamp is controlled using thyristor regulating photocontrol circuit, and compatibility of the LED lamp system not only to controllable silicon dimmer is good, and to the brightness adjustment control effect stability of LED lamp.The utility model can be widely applied to thyristor regulating optical arena as a kind of thyristor regulating photocontrol circuit and LED lamp system.
Description
Technical field
The utility model is related to thyristor regulating optical arena, and especially a kind of thyristor regulating photocontrol circuit, further relates to one kind
LED lamp system.
Background technology
Thyristor regulating photoelectric source is used for incandescent lamp, and technology maturation is deep to be liked by people, and lamp is used in the mind of people
Tool light modulation is deep-rooted, and thyristor regulating just leans on copped wave cut to realize light modulation, and controllable silicon will not for adjusting incandescent lamp
Flicker occur two reasons, and first, incandescent lamp is purely resistive, and its purely resistive can keep the maintenance electric current of controllable silicon；Second,
Incandescent lamp reaches incandescent state and comes luminous by filament heating, and when cut, filament will not be cooled down at once, so human eye will not
Feel flicker.
And when thyristor supply is dimmed for LED, light modulator might not support that LED drives, because LED controllable silicons are electric
Source dimming effect is difficult satisfactory as incandescent lamp；When controllable silicon is used to adjust LED, there is several big insoluble ask
Topic, first, LED is due to non-purely resistive, it is impossible to keep the maintenance electric current of controllable silicon；Second, LED are luminous to be answered with hole by electronics
The energy that conjunction is obtained is discharged in the form of photon, and power down photon loses energy immediately, so controllable silicon can be made to occur repeatedly restarting
Cause to flash, the 3rd, incandescent lamp is not very high to voltage request, and LED is then at a relatively high to voltage request, if it exceeds specified electricity
10%, LED of pressure can break down at once substantially, so LED typically will constant current.At present, common LED dimming power sources are more with specialty
Chip from the phase de-regulation electric current for above detecting input, because the thyrister form model used by light modulator on the market differs,
Internal circuit parameter is even more number beyond count, this allow for LED controllable silicons driving chip can not compatible all of controllable silicon dimmer,
This is numerous to be engaged in a great problem that LED industry is difficult to break through all the time.
Utility model content
In order to solve the above-mentioned technical problem, the purpose of this utility model is to provide a kind of various different controllable silicon light modulations of adaptation
The thyristor regulating photocontrol circuit of device, correspondingly, additionally provides a kind of LED lamp system.
The technical scheme that the utility model is used is：A kind of thyristor regulating photocontrol circuit, including constant voltage circuit, are used for
It is the voltage of constant-current circuit, dim signal Acquisition Circuit and control circuit with stable；
Constant-current circuit, for receiving the control signal of control circuit and exporting corresponding stable electric current；
Dim signal Acquisition Circuit, for gathering the dim signal of controllable silicon dimmer and sending it to control circuit；
Control circuit, for processing the dim signal of controllable silicon dimmer with the control signal of output control constant-current circuit；
First input end, the input of dim signal Acquisition Circuit respectively with constant-current circuit of the output end of the constant voltage circuit
End and the first input end connection of control circuit, the output end of the dim signal Acquisition Circuit and the second input of control circuit
End connection, the output end of the control circuit is connected with the second input of constant-current circuit.
Further, the thyristor regulating photocontrol circuit also include feedback circuit, the output end of the constant-current circuit with
The input connection of feedback circuit, the output end of the feedback circuit is connected with the input of control circuit.
Further, the constant voltage circuit includes rectifier bridge, the first nmos switch pipe, power supply chip, transformer and rectification
Filter circuit, the controllable silicon dimmer is connected with rectifier bridge, and the rectifier bridge is connected with transformer, the transformer respectively with
Power supply chip, the first nmos switch pipe and current rectifying and wave filtering circuit connection, the power supply chip are connected with the first nmos switch pipe.
Further, the dim signal Acquisition Circuit includes voltage comparator and optocoupler, the output end of the rectifier bridge
It is connected with the in-phase input end of voltage comparator, the output end of the power supply chip is connected with the power end of voltage comparator, institute
State the output end of voltage comparator to be connected with the input of optocoupler, output end and the input of control circuit of the optocoupler connect
Connect.
Further, it is described control circuit include voltage-stablizer and single-chip microcomputer, the output end of the current rectifying and wave filtering circuit with it is steady
The input connection of depressor, the output end of the voltage-stablizer, the output end of optocoupler are connected with the input of single-chip microcomputer respectively, described
The output end of single-chip microcomputer is connected with the input of constant-current circuit.
Further, the constant-current circuit includes constant current source chip and the second nmos switch pipe, the output of the single-chip microcomputer
End is connected with the first input end of constant current source chip, and the output end of the current rectifying and wave filtering circuit is input into the second of constant current source chip
End connection, the output end of the constant current source chip is connected with the second nmos switch pipe.
Further, the constant current source chip includes the constant current source chip of MPS24894 models.
Another technical scheme that the utility model is used is：A kind of LED lamp system, including controllable silicon dimmer, LED
Light fixture and described thyristor regulating photocontrol circuit, the controllable silicon dimmer connect power supply, the controllable silicon dimmer it is defeated
Go out end to be connected with the input of thyristor regulating photocontrol circuit, the output end and LED lamp of the thyristor regulating photocontrol circuit
Input connection.
The beneficial effects of the utility model are：Constant voltage circuit is in a kind of thyristor regulating photocontrol circuit in the utility model
Other circuits in thyristor regulating photocontrol circuit provide constant operating voltage, and control circuit control constant voltage circuit still keeps
Energy, keeps the minimum conducting electric current of controllable silicon, and the dim signal of dim signal Acquisition Circuit collection controllable silicon dimmer simultaneously will
It is sent to control processing of circuit, and control circuit controls the size of the stabling current of the output of constant-current circuit according to dim signal,
Thyristor regulating photocontrol circuit of the present utility model is suitable for different controllable silicon dimmers, and practicality is high.
Another beneficial effect of the present utility model is：A kind of LED lamp system in the utility model, using controllable silicon light modulation
Control circuit controls the work of LED lamp, and compatibility of the LED lamp system not only to controllable silicon dimmer is good, and to LED
The brightness adjustment control effect stability of light fixture.
Brief description of the drawings
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 is a kind of structured flowchart of thyristor regulating photocontrol circuit in the utility model；
Fig. 2 is an a kind of specific embodiment circuit of the constant voltage circuit of thyristor regulating photocontrol circuit in the utility model
Figure；
Fig. 3 is an a kind of specific implementation of the dim signal Acquisition Circuit of thyristor regulating photocontrol circuit in the utility model
Example circuit diagram；
Fig. 4 is an a kind of specific implementation of the dim signal Acquisition Circuit of thyristor regulating photocontrol circuit in the utility model
Example oscillogram；
Fig. 5 is an a kind of specific embodiment circuit of the control circuit of thyristor regulating photocontrol circuit in the utility model
Figure；
Fig. 6 is an a kind of specific embodiment circuit of the constant-current circuit of thyristor regulating photocontrol circuit in the utility model
Figure；
Fig. 7 is a kind of structured flowchart of LED lamp system in the utility model.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.
A kind of thyristor regulating photocontrol circuit, with reference to Fig. 1, Fig. 1 is a kind of thyristor regulating photocontrol electricity in the utility model
The structured flowchart on road,
Including constant voltage circuit, for the voltage for constant-current circuit, dim signal Acquisition Circuit and control circuit with stable；
Constant-current circuit, for receiving the control signal of control circuit and exporting corresponding stable electric current；
Dim signal Acquisition Circuit, for gathering the dim signal of controllable silicon dimmer and sending it to control circuit；
Control circuit, for processing the dim signal of controllable silicon dimmer with the control signal of output control constant-current circuit；
Controllable silicon dimmer connects power supply, and power supply is civil power；The output end of controllable silicon dimmer and the input of constant voltage circuit
End connection, the output end of constant voltage circuit first input end respectively with constant-current circuit, the input of dim signal Acquisition Circuit and
The output end of the first input end connection of circuit, dim signal Acquisition Circuit is controlled to be connected with the second input of control circuit,
The output end of circuit is controlled to be connected with the second input of constant-current circuit.
A kind of thyristor regulating photocontrol circuit is by constant voltage circuit for other circuits in thyristor regulating photocontrol circuit are carried
For constant operating voltage, control circuit control constant voltage circuit still keeps energy, keeps the minimum conducting electric current of controllable silicon, adjusts
Light signal collection circuit collection controllable silicon dimmer dim signal simultaneously send it to control processing of circuit, control circuit according to
The size of the stabling current of dim signal control constant-current circuit output, thyristor regulating photocontrol circuit of the present utility model is suitable for
Different controllable silicon dimmers, practicality is high.
Used as the further improvement of technical scheme, with reference to Fig. 1, Fig. 1 is a kind of thyristor regulating photocontrol in the utility model
The structured flowchart of circuit, control silicon adjusting control circuit also includes feedback circuit, and the output end of constant-current circuit is defeated with feedback circuit
Enter end connection, the output end of feedback circuit is connected with the input of control circuit；Increasing feedback circuit is used to feed back constant-current circuit
The stable case of the voltage of output controls the voltage of the adjustable constant-current circuit output of circuit more stable to circuit is controlled, then.
As the further improvement of technical scheme, constant voltage circuit include rectifier bridge, the first nmos switch pipe, power supply chip,
Transformer and current rectifying and wave filtering circuit, controllable silicon dimmer are connected with rectifier bridge, and rectifier bridge is connected with transformer, transformer respectively with
Power supply chip, the first nmos switch pipe and current rectifying and wave filtering circuit connection, power supply chip are connected with the first nmos switch pipe.
With reference to Fig. 2, Fig. 2 is an a kind of specific implementation of the constant voltage circuit of thyristor regulating photocontrol circuit in the utility model
Example circuit diagram, constant voltage circuit passes through power factor（PF）Simultaneously voltage stabilizing is exported power supply chip U2 high by input voltage step-down.Specifically
Ground, ACL end and ACN ends are civil power input, by after fuse F1 again by rectifier bridge BD1 rectifications；Electricity will be input into by diode D1
Source isolates, and prevents transformer T1 electric capacity in parallel from producing interference signal, the normal work to constant voltage circuit to have undesirable effect；Electricity
Source chip U2 is powered to drive the first nmos switch pipe Q1 by the assists winding of transformer T1；Again by the 8th resistance R8, the 13rd
Resistance R13, the 15th resistance R15 and the 6th electric capacity C6 check phase, power supply chip U2 is kept voltage and current synchronization, from
And realize PF high；After being depressured through transformer T1 again, the secondary of transformer T1 passes through the 3rd diode D3 and the second electrochemical capacitor again
E2 rectifying and wave-filterings, then by the first optocoupler U1（U1A, U1B in Fig. 2）Formed with controllable accurate source of stable pressure U3 and fed back so that constant pressure
The constant DC voltage of circuit output, i.e., by the V1 ends in Fig. 2, Fs ends and Ui ends output voltage.In the present embodiment, control
After controllable silicon cut, control constant voltage circuit remains in that the minimum conducting electric current of controllable silicon to circuit, sub-section electric capacity according to
Energy is so kept, control circuit control constant-current circuit still exports the electric current of stabilization, to reach the dimming effect not flashed.
Used as the further improvement of technical scheme, dim signal Acquisition Circuit includes voltage comparator and optocoupler, described whole
The output end for flowing bridge is connected with the in-phase input end of voltage comparator, the output end of power supply chip and the power end of voltage comparator
Connection, the output end of voltage comparator is connected with the input of optocoupler, and the output end of optocoupler is connected with the input of control circuit.
With reference to Fig. 3, Fig. 3 is of a kind of dim signal Acquisition Circuit of thyristor regulating photocontrol circuit in the utility model
Controllable silicon cut value is delivered to secondary by specific embodiment circuit diagram, dim signal Acquisition Circuit by optocoupler U5, is then transmitted
To control circuit.Control circuit typically can carry out signal transacting and system control using microprocessor, but microprocessor is difficult standard
The sinusoidal waveform of civil power is really detected, so needing to be processed to by means of operational amplifier and shaping, in the present embodiment, computing is put
Big device uses voltage comparator U4.The Fs ends of constant voltage circuit power for voltage comparator U4, and the Ui ends of constant voltage circuit inputs is
Signal after the rectified bridge rectification of input power, the frequency of power supply signal is changed into 100Hz's by the positive-negative half-cycle of original 50Hz
Positive voltage waveform, the second voltage-regulator diode ZD2 provides reference data voltage for voltage comparator U4, and input signal is through the 18th electricity
Compare into voltage comparator U4 after resistance R18 and the 21st resistance R21 partial pressures, in the presence of without controllable silicon dimmer, input
After civil power, input voltage comparator U4's is a sine wave, and with reference to Fig. 4, Fig. 4 is a kind of controllable silicon light modulation in the utility model
Control a specific embodiment oscillogram of the dim signal Acquisition Circuit of circuit, Fig. 4（a）It is normal mains waveform, it is at this moment electric
Pressure comparator U4 output duty cycles are almost close to 100%；When civil power is zeroed or believes with the presence of controllable silicon dimmer and in the presence of light modulation
Number, such as Fig. 4（b）、（c）It is shown, Fig. 4（b）It is waveform when there is controllable silicon dimmer and there is cut, Fig. 4（c）It is Fig. 4
（b）Wave rectification after waveform, the waveform voltage of civil power occurs the waveform of one section of reference data voltage less than setting, this
When voltage comparator U4 output signal can within the regular hour no-voltage, when the in-phase input end of voltage comparator U4 is input into
Voltage exceed inverting input input reference data voltage when, the output end of voltage comparator U4 just has voltage output,
The output end of voltage comparator U4 exports a square-wave signal of 100Hz, such as Fig. 4（d）It is shown, Fig. 4（d）It is voltage comparator U4
The square-wave waveform of output, then can draw the duty of the waveform of ratio and voltage comparator the U4 output of controllable silicon dimmer cut
Than being directly proportional, the square-wave signal of voltage comparator U4 outputs carries the cut value information of controllable silicon, i.e. dim signal, then by optocoupler
The output signal of voltage comparator U4 is passed to secondary by U5, by the Uo ends in Fig. 3, for control processing of circuit.
Used as the further improvement of technical scheme, control circuit includes voltage-stablizer and single-chip microcomputer, current rectifying and wave filtering circuit it is defeated
Go out end to be connected with the input of voltage-stablizer, the output end of voltage-stablizer, the output end of optocoupler are connected with the input of single-chip microcomputer respectively,
The output end of single-chip microcomputer is connected with the input of constant-current circuit.
Control circuit is mainly responsible for calculating zero passage, cut value, reads built-in energy release form, the output of control constant current part
Electric current.With reference to Fig. 5, Fig. 5 is an a kind of specific embodiment of the control circuit of thyristor regulating photocontrol circuit in the utility model
Circuit diagram, in the present embodiment, the V1 ends of constant voltage circuit power to voltage-stablizer U6, and it is the voltage stabilizing of 5V that voltage-stablizer U6 uses output voltage
Device, single-chip microcomputer uses the single-chip microcomputer STM8S103 of ST companies, voltage-stablizer U6 that the work electricity of the 5V of stabilization is improved to single-chip microcomputer STM1
Pressure, the square-wave signal of dim signal Acquisition Circuit collection is input into single-chip microcomputer STM1 by Uo ends and processed, and PWM ends are passed through after treatment
Constant-current circuit is output control signals to, the work of constant-current circuit is controlled；The signal for being returned by Us ends input feedback circuit again, instead
Current feed circuit detects whether current output voltage is stablized, if unstable, MCU then controls PWM duty cycle to reduce, so as to reduce electricity
Stream, the stability bandwidth of natural voltage can reduce.
When actually used, single-chip microcomputer STM1 needs to carry out data processing, and process is as follows：If single-chip microcomputer has detected controllable
In the presence of silicon dim signal, controllable silicon Detection task is opened, because the waveform of civil power is a sine wave, and sinusoidal wavelength-division upper half
Week and lower half, are so easy to go out the current cycle according to the time measurement of positive-negative half-cycle.Assuming that having detected that current period
It is T, if the output signal for detecting current light modulator is close to 100%（Without cut）, then its low level cycle is equal to
Time during zero, it is assumed that this time is TL, and TL at this moment can be ignored substantially, single-chip microcomputer is calculated by algorithm can
It is the output that PWM is 100% with judgement；And work as in the presence of controllable silicon has a cut, at this moment this low level TL time can substantially become
It is long, then the positive dutycycles of input PWM=（T-TL）/ T, such that it is able to obtain effective PWM, because primary is transmitted through the PWM for coming frequently
Rate is relatively low, and the electric current of constant-current circuit can be made unstable, furthermore prime PWM is one linear, can not accurately control secondary energy
The ratio of release, so calculation process need to be carried out by single-chip microcomputer to determine how many energy should be exported, MCU can do following
Task, first：Redefine the positive dutycycle of PMW waveforms, second：Improve PWM output frequencies, the 3rd：Fed back to according to US ends
The self-built energy release form of signal for coming, and the form before correction.In fact, the energy of constant voltage circuit is first stored in the second electricity
On solution electric capacity E2, can so ensure that controllable silicon is interior in pass idle, constant-current circuit is still with the presence of energy.Built inside single-chip microcomputer
Vertical energy release form, by currently detected PWM duty cycle, rear class US voltage fluctuation rates, the output such as contrast of tabling look-up
Correct PWM, it is ensured that the electric current of constant-current circuit output charges in next electric capacity（Before energy arrives）Still with the presence of energy；Separately
Outward, the PWM frequency that will be exported is improved, and frequency is higher to be less susceptible to see flicker.
Used as the further improvement of technical scheme, constant-current circuit includes constant current source chip and the second nmos switch pipe, monolithic
The output end of machine is connected with the first input end of constant current source chip, the output end of current rectifying and wave filtering circuit and the second of constant current source chip
Input is connected, and the output end of constant current source chip is connected with the second nmos switch pipe.With reference to Fig. 6, Fig. 6 is one in the utility model
A specific embodiment circuit diagram of the constant-current circuit of thyristor regulating photocontrol circuit is planted, the V1 ends of constant voltage circuit supply to constant-current circuit
Electricity, controls the output current of the PWM ends input control signal control constant-current circuit of circuit, and control signal is pwm signal, output electricity
The size of stream depends on the dutycycle of the PWM of input, and when PWM is 0%, constant-current circuit is closed, no current output, and PWM is 100%
When electric current output it is maximum；Constant current source chip includes the constant current source chip of MPS24894 models, by the output end of constant-current circuit
LED- and LED+ is connected with external light fixture, you can to realize the brightness adjustment control to light fixture.
With reference to Fig. 6, Fig. 6 is an a kind of specific implementation of the constant-current circuit of thyristor regulating photocontrol circuit in the utility model
Example circuit diagram, feedback circuit includes the 28th resistance R28 and the 29th resistance R29, the 28th resistance R28 and the 20th
One being exported by US ends and feeding back signal to MCU, whether detection current output voltage is stablized after nine resistance R29 partial pressures.
A kind of LED lamp system, with reference to Fig. 7, Fig. 7 is a kind of structured flowchart of LED lamp system in the utility model, bag
Controllable silicon dimmer, LED lamp and described thyristor regulating photocontrol circuit, controllable silicon dimmer connection power supply are included, power supply is
Civil power；The output end of controllable silicon dimmer is connected with the input of thyristor regulating photocontrol circuit, you can control the defeated of silicon light modulator
Go out end to be connected with the input of constant voltage circuit, the output end of thyristor regulating photocontrol circuit is connected with the input of LED lamp, i.e.,
The output end of constant-current circuit is connected with the input of LED lamp.A kind of LED lamp system utilizes thyristor regulating photocontrol circuit control
The work of LED lamp processed, compatibility of the LED lamp system not only to controllable silicon dimmer is good, and to the light modulation of LED lamp
Control effect stabilization.
Above is preferable implementation of the present utility model is illustrated, but the invention is not limited to the reality
Example is applied, those of ordinary skill in the art can also make a variety of equivalent variations on the premise of without prejudice to the utility model spirit
Or replace, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (8)
1. a kind of thyristor regulating photocontrol circuit, it is characterised in that
Including constant voltage circuit, for the voltage for constant-current circuit, dim signal Acquisition Circuit and control circuit with stable；
Constant-current circuit, for receiving the control signal of control circuit and exporting corresponding stable electric current；
Dim signal Acquisition Circuit, for gathering the dim signal of controllable silicon dimmer and sending it to control circuit；
Control circuit, for processing the dim signal of controllable silicon dimmer with the control signal of output control constant-current circuit；
The output end of constant voltage circuit first input end respectively with constant-current circuit, the input of dim signal Acquisition Circuit and
Output end and second input of control circuit of the first input end connection of circuit, the dim signal Acquisition Circuit is controlled to connect
Connect, the output end of the control circuit is connected with the second input of constant-current circuit.
2. thyristor regulating photocontrol circuit according to claim 1, it is characterised in that also including feedback circuit, the perseverance
The output end of current circuit is connected with the input of feedback circuit, and output end and the input of control circuit of the feedback circuit connect
Connect.
3. thyristor regulating photocontrol circuit according to claim 1 and 2, it is characterised in that the constant voltage circuit includes whole
Stream bridge, the first nmos switch pipe, power supply chip, transformer and current rectifying and wave filtering circuit, the controllable silicon dimmer and rectification bridging
Connect, the rectifier bridge is connected with transformer, the transformer is electric with power supply chip, the first nmos switch pipe and rectifying and wave-filtering respectively
Road connects, and the power supply chip is connected with the first nmos switch pipe.
4. thyristor regulating photocontrol circuit according to claim 3, it is characterised in that the dim signal Acquisition Circuit bag
Voltage comparator and optocoupler are included, the output end of the rectifier bridge is connected with the in-phase input end of voltage comparator, the power supply core
The output end of piece is connected with the power end of voltage comparator, and the output end of the voltage comparator is connected with the input of optocoupler,
The output end of the optocoupler is connected with the input of control circuit.
5. thyristor regulating photocontrol circuit according to claim 4, it is characterised in that the control circuit includes voltage-stablizer
And single-chip microcomputer, the output end of the current rectifying and wave filtering circuit is connected with the input of voltage-stablizer, the output end of the voltage-stablizer, optocoupler
Output end be connected with the input of single-chip microcomputer respectively, the output end of the single-chip microcomputer is connected with the input of constant-current circuit.
6. thyristor regulating photocontrol circuit according to claim 5, it is characterised in that the constant-current circuit includes constant-current source
Chip and the second nmos switch pipe, the output end of the single-chip microcomputer are connected with the first input end of constant current source chip, the rectification
The output end of filter circuit is connected with the second input of constant current source chip, output end and the 2nd NMOS of the constant current source chip
Switching tube is connected.
7. thyristor regulating photocontrol circuit according to claim 6, it is characterised in that the constant current source chip includes
The constant current source chip of MPS24894 models.
8. a kind of LED lamp system, it is characterised in that including controllable silicon dimmer, LED lamp and any one of claim 1 to 7
Described thyristor regulating photocontrol circuit, the controllable silicon dimmer connects power supply, the output end of the controllable silicon dimmer with
The input connection of thyristor regulating photocontrol circuit, the output end of the thyristor regulating photocontrol circuit and the input of LED lamp
End connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621170417.3U CN206212339U (en) | 2016-11-02 | 2016-11-02 | A kind of thyristor regulating photocontrol circuit and LED lamp system |
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|---|---|---|---|
| CN201621170417.3U CN206212339U (en) | 2016-11-02 | 2016-11-02 | A kind of thyristor regulating photocontrol circuit and LED lamp system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114269045B (en) * | 2021-12-06 | 2024-04-02 | 宁海县鹰峤电气有限公司 | LED silicon controlled rectifier dimming power supply |
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2016
- 2016-11-02 CN CN201621170417.3U patent/CN206212339U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114269045B (en) * | 2021-12-06 | 2024-04-02 | 宁海县鹰峤电气有限公司 | LED silicon controlled rectifier dimming power supply |
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