CN207219090U - A kind of wide electronic light modulator of compatible voltage range - Google Patents
A kind of wide electronic light modulator of compatible voltage range Download PDFInfo
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- CN207219090U CN207219090U CN201720738318.9U CN201720738318U CN207219090U CN 207219090 U CN207219090 U CN 207219090U CN 201720738318 U CN201720738318 U CN 201720738318U CN 207219090 U CN207219090 U CN 207219090U
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Abstract
The utility model discloses a kind of wide electronic light modulator of compatible voltage range,Main control module,LED light-adjusting modules,Power module,Zero point synchronous detection module,LED light-adjusting modules respectively with main control module,Outside LED drive module is electrically connected with,Power module is main control module,LED light-adjusting modules are powered,Zero point synchronous detection module is electrically connected with to detect frequency signal with alternating current or power module,Frequency signal is input in main control module by zero point synchronous detection module,Main control module goes out and the PWM duty cycle that the alternating current of outside is adapted to LED light-adjusting modules according to frequency signal modulation,LED light-adjusting modules are modulated into dim signal and drive LED load to operate into LED drive module,The design can accomplish that supply district expands to 90V 270V using Switching Power Supply power supply,Set up zero point synchronous detection module,PWM duty cycle output is set to be adapted to the alternating current accessed,Reach good illumination effect.
Description
Technical field
It the utility model is related to a kind of light modulator, the wide electronic light modulator of particularly a kind of compatible voltage range.
Background technology
At present, light modulator on the market due to the power supply voltage different frequency of application it is also different, e.g. 200V/
50H either 120V/60Hz power supplies, and traditional light modulator can only all adjust the voltage of one of which and can only be applicable
In corresponding frequency, if the dimmer applications for adapting to 50Hz frequencies may result in 60Hz frequencies lamp dodge etc. it is a series of
Phenomenon, and dimming effect is very undesirable.
Thus, a type of light modulator may be only available for the voltage and frequency of the type, when causing the people to use very
Inconvenience, dimming effect is poor, while also certain potential safety hazard.
Utility model content
In order to solve the above technical problems, the purpose of this utility model is to provide a kind of compatible voltage range extensively and automatic governing
The electronic light modulator of frequency.
The technical solution adopted in the utility model is：
A kind of wide electronic light modulator of compatible voltage range, including,
Main control module, LED light-adjusting modules, LED light-adjusting modules are electrical with main control module, outside LED drive module respectively
Connection, with by LED drive module driving LED load running；
Power module, for thinking main control module, the power supply of LED light-adjusting modules to outside power conversion；
Zero point synchronous detection module, it is electrically connected with the alternating current or power module of outside to detect frequency signal, zero
Point synchronous detection module is electrically connected with so that frequency signal is input in main control module with main control module, and main control module is according to frequency
Signal modulation goes out the PWM duty cycle being adapted to the alternating current of outside and is output to LED light-adjusting modules, and is adjusted by LED light-adjusting modules
Dim signal is made drives LED load to operate into LED drive module.
The zero point synchronous detection module includes rectification circuit, resistor voltage divider circuit, NPN type triode Q5；
The input of rectification circuit is electrically connected with outside alternating current, the input and rectification circuit of resistor voltage divider circuit
Output end be electrically connected with to direct current decompression handle, triode Q5 base stage and the output end of resistor voltage divider circuit electrically connect
Connect, triode Q5 colelctor electrode and power module are electrically connected with, and triode Q5 emitter stage and main control module are electrically connected with defeated
Enter frequency signal.
The LED light-adjusting modules include NPN type triode Q4, PNP type triode Q3, the metal-oxide-semiconductor for following circuit, N-channel
Q7 and N-channel metal-oxide-semiconductor Q8；
Triode Q4 base stage is electrically connected with main control module, triode Q4 grounded emitter；
Triode Q3 base stage is connected with triode Q4 colelctor electrode, and triode Q3 emitter stage electrically connects with power module
Connect, triode Q3 colelctor electrode is with following the input of circuit to be electrically connected with；
Following the output end of circuit, the grid with metal-oxide-semiconductor Q7, metal-oxide-semiconductor Q8 grid are electrically connected with respectively；
Metal-oxide-semiconductor Q7 drain electrode is electrically connected with LED drive module, and LED drive module and the L of external communication electricity extremely electrically connect
Connect, metal-oxide-semiconductor Q7 source ground；
Metal-oxide-semiconductor Q8 drain electrode and the N poles of external communication electricity are electrically connected with, metal-oxide-semiconductor Q8 source ground.
It is described to follow circuit to include PNP type triode Q1, NPN type triode Q2；
The base stage with triode Q2, triode Q3 colelctor electrode are electrically connected with triode Q1 base stage respectively, triode Q1
Emitter stage, triode Q2 emitter stage, metal-oxide-semiconductor Q7 grid, metal-oxide-semiconductor Q8 grid be electrically connected with, triode Q1 current collection
Pole is grounded；
Triode Q2 colelctor electrode is electrically connected with power module.
The power module includes rectification chip, switching power circuit, linear regulator chip；
The input of rectification chip is electrically connected with outside alternating current, the output end and switching power circuit of rectification chip
Input be electrically connected with, the output end of switching power circuit respectively the emitter stage with triode Q3, triode Q2 colelctor electrode,
The input of linear regulator chip is electrically connected with to provide driving voltage, the output end of linear regulator chip for LED light-adjusting modules
With main control module be electrically connected with using by the voltage after decompression as master control module for power supply.
Also include being used for the temperature protection module for detecting LED light-adjusting module temperature informations, main control module and temperature protection mould
Block is electrically connected with out of service when LED light-adjusting module temperature is too high.
The temperature protection module includes thermistor NTC, the divider resistance of the temperature information of detection LED light-adjusting modules
R4, electric capacity C9, thermistor NTC one end and power module are electrically connected with, the other end respectively with main control module, divider resistance R4
One end, electric capacity C9 one end be electrically connected with, the divider resistance R4 other end and electric capacity C4 other end ground connection.
Also include light modulation input module, the light modulation input module is electrically connected with main control module and adjusted to be inputted to main control module
Photocontrol information.
The beneficial effects of the utility model：
The utility model electronic light modulator, using Switching Power Supply be adjusted alternating voltage, and be rear portion member
Part is powered, and can accomplish that supply district expands to 90V-270V using Switching Power Supply power supply, and ensures that stabilization exports, and zero point is synchronous
Detection module detects the frequency signal of alternating current, and is input to main control module, and main control module is handled frequency signal, together
When modulate PWM duty cycle and be output in LED light-adjusting modules, and dim signal is modulated into by LED light-adjusting modules and driven to LED
LED load running is driven in module, can be adapted to the alternating current of access, reach good illumination effect.
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 the schematic diagram of the utility model electronic light modulator.
Fig. 2 is the circuit diagram of power module.
Fig. 3 is the circuit diagram of zero point synchronous detection module.
Fig. 4 is the circuit diagram of main control module.
Fig. 5 is the circuit diagram of temperature protection module.
Fig. 6 is the circuit diagram for dimming input module.
Fig. 7 is the circuit diagram of LED light-adjusting modules.
Embodiment
As shown in figure 1, the utility model electronic light modulator, including main control module 1, LED light-adjusting modules 2, power module 4,
Zero point synchronous detection module 5, LED light-adjusting modules 2 are electrically connected with main control module 1, outside LED drive module 3 respectively, power supply
Module 4 is used to think outside power conversion main control module 1, LED light-adjusting modules 2 are powered, zero point synchronous detection module 5 and outside
Alternating current or power module 4 be electrically connected with to detect frequency signal, zero point synchronous detection module 5 and main control module 1 are electrical
So that frequency signal is input in main control module 1, main control module 1 goes out according to frequency signal modulation fits with the alternating current of outside for connection
The PWM duty cycle matched somebody with somebody is output to LED light-adjusting modules 2, and is modulated into dim signal to LED drive module by LED light-adjusting modules 2
LED load running is driven in 3.
Wherein, as shown in Fig. 2 power module 4 includes rectification chip 41, switching power circuit 42, linear regulator chip 43,
Rectification chip 41 uses conventional rectification chip, in the design preferred embodiment of switching power circuit 42 using LNK574 chips and its
Accessory circuit, the scope of its input voltage in 90V-270V, the design using single fiery way to take power, by LNK574 chips and its
Accessory circuit exports 12V supply voltages, and voltage is further depressured into 3.3V by linear regulator chip 43 and thinks master control
Module 1 is powered.
As shown in figure 4, the main control module 1 of the design uses STM32L super low-power consumption series monolithics, running current
For 2mA, operating voltage 3.3V so that the design power consumption is relatively low.
As shown in figure 3, zero point synchronous detection module 5 includes rectification circuit 51, resistor voltage divider circuit 52, NPN type triode
Q5, the input of rectification circuit 51 are electrically connected with outside alternating current, the input and rectification circuit of resistor voltage divider circuit 52
51 output end is electrically connected with to handle direct current decompression, triode Q5 base stage and the output end electricity of resistor voltage divider circuit 52
Property connection, triode Q5 colelctor electrode and power module 4 be electrically connected with, and triode Q5 emitter stage and main control module 1 electrically connect
Connect with input frequency signal.
Rectification circuit 51 includes filter capacitor CX1, diode D1, diode D2, filter capacitor CX1 one end and diode
D1 positive pole and live wire connection, the filter capacitor CX1 other end are connected with diode D2 positive pole and zero line, diode D1
Negative pole, diode D2 negative pole connect and be used as the output end of rectification circuit 51, resistor voltage divider circuit 52 including resistance R4,
Resistance R5, resistance R6, electric capacity C12, resistance R4, resistance R5 are in parallel, resistance R6 one end respectively with resistance R4 one end, electric capacity C12 mono-
End, triode Q5 base stage are electrically connected with (i.e. resistance R6 connects with resistance R4, resistance R5), resistance the R4 other end and rectified current
The output end on road 51 is electrically connected with, the resistance R6 other end and the other end ground connection of electric capacity.
Alternating current is filtered from rectification circuit 51, rectification output, and by electric resistance partial pressure, driving triode Q5 is switched, and
And frequency signal is input in main control module 1.
The design using Switching Power Supply be adjusted alternating voltage, and is powered for posterior elements, using switch
Power supply power supply can accomplish that supply district expands to 90V-270V, and ensure that stabilization exports, and the detection of zero point synchronous detection module 5 is handed over
The frequency signal of electricity is flowed, and is input to main control module 1, main control module 1 is handled frequency signal, while modulates PWM
Dutycycle is output in LED light-adjusting modules 2, and being modulated into dim signal into LED drive module 3 by LED light-adjusting modules 2 drives
LED load operates, and can be adapted to the alternating current of access, reach good illumination effect.
And the embodiment of the LED drive circuit of the design is, LED light-adjusting modules 2 include NPN type triode Q4, positive-negative-positive three
Pole pipe Q3, the metal-oxide-semiconductor Q8 for following circuit 21, the metal-oxide-semiconductor Q7 of N-channel and N-channel；Triode Q4 base stage and main control module 1
It is electrically connected with, triode Q4 grounded emitter；Triode Q3 base stage is connected with triode Q4 colelctor electrode, triode Q3's
Emitter stage is electrically connected with power module 4, and triode Q3 colelctor electrode is with following the input of circuit 21 to be electrically connected with；
Following the output end of circuit 21, the grid with metal-oxide-semiconductor Q7, metal-oxide-semiconductor Q8 grid are electrically connected with respectively；Metal-oxide-semiconductor Q7's
Drain electrode is electrically connected with LED drive module 3, and LED drive module 3 and the L poles of external communication electricity are electrically connected with, metal-oxide-semiconductor Q7 source
Pole is grounded；Metal-oxide-semiconductor Q8 drain electrode and the N poles of external communication electricity are electrically connected with, metal-oxide-semiconductor Q8 source ground.
Following circuit 21 includes PNP type triode Q1, NPN type triode Q2, triode Q1 base stage respectively with triode
Q2 base stage, triode Q3 colelctor electrode be electrically connected with, triode Q1 emitter stage, triode Q2 emitter stage, metal-oxide-semiconductor Q7
Grid, metal-oxide-semiconductor Q8 grid are electrically connected with, triode Q1 grounded collector, triode Q2 colelctor electrode and the electricity of power module 4
Property connection.
Meanwhile the input of rectification chip 41 is electrically connected with outside alternating current, the output end of rectification chip 41 is with opening
The input of powered-down source circuit 42 is electrically connected with, the output end of switching power circuit 42 emitter stage with triode Q3, three respectively
Pole pipe Q2 colelctor electrode, the input of linear regulator chip 43 are electrically connected with to provide driving voltage, line for LED light-adjusting modules 2
Property voltage stabilizing chip 43 output end be electrically connected with to power the voltage after decompression as main control module 1 with main control module 1, switch electricity
The 12V voltages that source circuit 42 exports provide driving voltage for LED light-adjusting modules 2.
Main control module 1 is integrated out according to frequency signal between corresponding PWM duty cycle triode Q4 base stage and emitter stage
A resistance R24 is connected, main control module 1 exports PWM duty cycle signal, regulation triode Q4 on-state rate, triode Q3 base stage
A resistance R17 is connected between emitter stage, triode Q4 is turned on, and drags down triode Q3 base level, and triode Q3 is turned on, and
And pass the signal to and follow circuit 21, follow circuit 21 to output a signal to metal-oxide-semiconductor Q7, metal-oxide-semiconductor Q8, metal-oxide-semiconductor Q7, metal-oxide-semiconductor
Q8 is turned on, and alternating current acts directly on the both ends of LED drive module 3, and electric current is from metal-oxide-semiconductor Q7 or metal-oxide-semiconductor Q8 drain electrode
Source electrode is flowed into, and flows into ground wire, the design PWM duty cycle signal is by controlling metal-oxide-semiconductor Q7 and metal-oxide-semiconductor Q8 turn-on and turn-off
To cut copped wave after carrying out, so as to drive LED drive module 3 to operate, then LED load connected by LED drive module 3, reach light modulation
Effect.
In addition, as shown in figure 5, the design also includes being used for the temperature protection for detecting the temperature information of LED light-adjusting modules 2
Module 6, main control module 1 are electrically connected with out of service when the temperature of LED light-adjusting modules 2 is too high with temperature protection module 6.
The preferred embodiment of temperature protection module 6 is that the temperature protection module 6 includes detection LED light-adjusting modules 2 herein
Temperature information thermistor NTC, divider resistance R4, electric capacity C9, thermistor NTC one end electrically connects with power module 4
Connect, the other end is electrically connected with main control module 1, divider resistance R4 one end, electric capacity C9 one end respectively, and divider resistance R4's is another
One end and electric capacity the C4 other end are grounded, and thermistor NTC is used to detect metal-oxide-semiconductor Q7, metal-oxide-semiconductor Q8 temperature, when temperature mistake
Height, then turn off electronic light modulator operation.
As shown in fig. 6, the design also includes light modulation input module 7, the light modulation input module 7 electrically connects with main control module 1
Connecing to input dimmer control information to main control module 1, dimmer control information can be produced by the setting program of main control module 1,
It can be inputted by the external world, light modulation input module 7 provides means for external world's input dim signal, dims input module 7 herein and adopts
Partial pressure light modulation is carried out with adjustable resistance.
Preferred embodiments of the present utility model are the foregoing is only, the utility model is not limited to above-mentioned embodiment party
Formula, if with essentially identical means realize the technical scheme of the utility model purpose belong to the scope of protection of the utility model it
It is interior.
Claims (8)
- A kind of 1. wide electronic light modulator of compatible voltage range, it is characterised in that including：Main control module (1), LED light-adjusting modules (2), LED light-adjusting modules (2) drive with main control module (1), outside LED respectively Module (3) is electrically connected with, with by LED drive module (3) driving LED load running；Power module (4), for thinking main control module (1), LED light-adjusting modules (2) power supply to outside power conversion；Zero point synchronous detection module (5), it is electrically connected with the alternating current or power module (4) of outside to detect frequency signal, Zero point synchronous detection module (5) is electrically connected with so that frequency signal is input in main control module (1) with main control module (1), master control Module (1) goes out the PWM duty cycle being adapted to the alternating current of outside according to frequency signal modulation and is output to LED light-adjusting modules (2), and And dim signal driving LED load running into LED drive module (3) is modulated into by LED light-adjusting modules (2).
- A kind of 2. wide electronic light modulator of compatible voltage range according to claim 1, it is characterised in that：The zero point is same Walking detection module (5) includes rectification circuit (51), resistor voltage divider circuit (52), NPN type triode Q5；The input of rectification circuit (51) is electrically connected with outside alternating current, the input of resistor voltage divider circuit (52) and rectification The output end of circuit (51) is electrically connected with to handle direct current decompression, triode Q5 base stage and resistor voltage divider circuit (52) Output end is electrically connected with, and triode Q5 colelctor electrode and power module (4) are electrically connected with, triode Q5 emitter stage and master control mould Block (1) is electrically connected with input frequency signal.
- A kind of 3. wide electronic light modulator of compatible voltage range according to claim 1, it is characterised in that：The LED is adjusted Optical module (2) includes NPN type triode Q4, PNP type triode Q3, the metal-oxide-semiconductor Q7 and N-channel for following circuit (21), N-channel Metal-oxide-semiconductor Q8；Triode Q4 base stage is electrically connected with main control module (1), triode Q4 grounded emitter；Triode Q3 base stage is connected with triode Q4 colelctor electrode, and triode Q3 emitter stage and power module (4) electrically connect Connect, triode Q3 colelctor electrode is with following the input of circuit (21) to be electrically connected with；Following the output end of circuit (21), the grid with metal-oxide-semiconductor Q7, metal-oxide-semiconductor Q8 grid are electrically connected with respectively；Metal-oxide-semiconductor Q7 drain electrode is electrically connected with LED drive module (3), and LED drive module (3) and the L of external communication electricity are extremely electrical Connection, metal-oxide-semiconductor Q7 source ground；Metal-oxide-semiconductor Q8 drain electrode and the N poles of external communication electricity are electrically connected with, metal-oxide-semiconductor Q8 source ground.
- A kind of 4. wide electronic light modulator of compatible voltage range according to claim 3, it is characterised in that：It is described to follow electricity Road (21) includes PNP type triode Q1, NPN type triode Q2；Triode Q1 the base stage base stage with triode Q2, three poles respectively Pipe Q3 colelctor electrode is electrically connected with, triode Q1 emitter stage, triode Q2 emitter stage, metal-oxide-semiconductor Q7 grid, metal-oxide-semiconductor Q8 Grid be electrically connected with, triode Q1 grounded collector；Triode Q2 colelctor electrode is electrically connected with power module (4).
- A kind of 5. wide electronic light modulator of compatible voltage range according to claim 4, it is characterised in that：The power supply mould Block (4) includes rectification chip (41), switching power circuit (42), linear regulator chip (43)；The input of rectification chip (41) is electrically connected with outside alternating current, the output end and Switching Power Supply of rectification chip (41) The input of circuit (42) is electrically connected with, the output end of switching power circuit (42) emitter stage with triode Q3, three poles respectively Pipe Q2 colelctor electrode, the input of linear regulator chip (43), which are electrically connected with, thinks that LED light-adjusting modules (2) provide driving voltage, The output end of linear regulator chip (43) is electrically connected with so that the voltage after decompression to be supplied as main control module (1) with main control module (1) Electricity.
- A kind of 6. wide electronic light modulator of compatible voltage range according to claim 1, it is characterised in that：Also include being used for The temperature protection module (6) of LED light-adjusting modules (2) temperature information is detected, main control module (1) is electrical with temperature protection module (6) Connection is with out of service when LED light-adjusting modules (2) temperature is too high.
- A kind of 7. wide electronic light modulator of compatible voltage range according to claim 6, it is characterised in that：The temperature is protected Protecting module (6) includes thermistor NTC, divider resistance R4, the electric capacity C9 of temperature information of detection LED light-adjusting modules (2), the heat Quick resistance NTC one end and power module (4) are electrically connected with, the other end respectively with main control module (1), divider resistance R4 one end, Electric capacity C9 one end is electrically connected with, the divider resistance R4 other end and electric capacity C4 other end ground connection.
- A kind of 8. wide electronic light modulator of compatible voltage range according to claim 1, it is characterised in that：Also include light modulation Input module (7), the light modulation input module (7) are electrically connected with main control module (1) to input brightness adjustment control to main control module (1) Information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720738318.9U CN207219090U (en) | 2017-06-22 | 2017-06-22 | A kind of wide electronic light modulator of compatible voltage range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720738318.9U CN207219090U (en) | 2017-06-22 | 2017-06-22 | A kind of wide electronic light modulator of compatible voltage range |
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| Publication Number | Publication Date |
|---|---|
| CN207219090U true CN207219090U (en) | 2018-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720738318.9U Withdrawn - After Issue CN207219090U (en) | 2017-06-22 | 2017-06-22 | A kind of wide electronic light modulator of compatible voltage range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207219090U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107172752A (en) * | 2017-06-22 | 2017-09-15 | 中山市智观照明科技有限公司 | A kind of wide electronic light modulator of compatible voltage range |
| CN110958749A (en) * | 2019-11-22 | 2020-04-03 | 厦门阳光恩耐照明有限公司 | Emergency detection and multi-input power supply lighting circuit |
-
2017
- 2017-06-22 CN CN201720738318.9U patent/CN207219090U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107172752A (en) * | 2017-06-22 | 2017-09-15 | 中山市智观照明科技有限公司 | A kind of wide electronic light modulator of compatible voltage range |
| CN110958749A (en) * | 2019-11-22 | 2020-04-03 | 厦门阳光恩耐照明有限公司 | Emergency detection and multi-input power supply lighting circuit |
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Granted publication date: 20180410 Effective date of abandoning: 20190419 |
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| AV01 | Patent right actively abandoned |
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