CN204350367U - Radio frequency light modulation LED power supply - Google Patents
Radio frequency light modulation LED power supply Download PDFInfo
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- CN204350367U CN204350367U CN201420785179.1U CN201420785179U CN204350367U CN 204350367 U CN204350367 U CN 204350367U CN 201420785179 U CN201420785179 U CN 201420785179U CN 204350367 U CN204350367 U CN 204350367U
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Abstract
The utility model discloses a kind of radio frequency light modulation LED power supply, comprise EMI circuit, current rectifying and wave filtering circuit, switching circuit, pwm control circuit, transforming circuit, rectifying and wave-filtering output circuit, detect feedback circuit and radio-frequency (RF) transmit-receive circuit, wherein, current rectifying and wave filtering circuit is connected with EMI circuit, switching circuit is connected with current rectifying and wave filtering circuit, pwm control circuit is connected with switching circuit, transforming circuit is connected with described switching circuit, rectifying and wave-filtering output circuit is connected with described transforming circuit, detect feedback circuit input to be connected with described rectifying and wave-filtering output circuit, output is connected with described pwm control circuit, radio-frequency (RF) transmit-receive circuit is connected with pwm control circuit, for receiving the remote control command that external remote sends, and this remote control command being inputed to pwm control circuit, controlling to make pwm control circuit according to this remote control command to switching circuit.Radio frequency light modulation LED power supply of the present utility model, can receive the remote control command of external remote by RF-wise and carry out switch control rule, brightness adjustment control etc.
Description
Technical field
The utility model relates to LED power, particularly relates to a kind of radio frequency light modulation LED power supply.
Background technology
LED power is the device providing power to LED device, also claims power supply unit, and the different electrical power input be deployed in LED device is connected on the independent circuits equipment that inputs with two or three power supplys.LED power is widely used in street lamp, Tunnel Lamp, LED grille lamp, LED indoor lamp, LED Ceiling light, building, road and bridge, square Architectural Equipment, Lawn lamp, curtain wall lamp, LED wall wash lamp etc.But current LED power is all non-intelligent power, can not realize Based Intelligent Control, light modulation etc., and along with the development of Smart Home, these non intelligent LED power can not meet user already to intelligentized requirement.
Utility model content
The purpose of this utility model is overcome deficiency of the prior art and provide a kind of radio frequency light modulation LED power supply, can realize Based Intelligent Control.
The technical scheme that the utility model solution prior art problem adopts is: a kind of radio frequency light modulation LED power supply, comprising:
AC input, in order to input ac voltage;
EMI circuit, is connected with described AC input, for carrying out anti-interference process to alternating voltage;
Current rectifying and wave filtering circuit, is connected with described EMI circuit, forms high voltage direct current for carrying out rectifying and wave-filtering to the described alternating voltage after anti-interference process;
Switching circuit, is connected with described current rectifying and wave filtering circuit, is turned on or off described high voltage direct current to be converted to pulse voltage output for responsive control signal;
Pwm control circuit, is connected with described switching circuit, for exporting described control signal to control the pulsewidth of the pulse voltage of described switching circuit output;
Transforming circuit, is connected with described switching circuit, and the pulse voltage for exporting described switching circuit is carried out voltage transformation and formed low-voltage DC;
Rectifying and wave-filtering output circuit, is connected with described transforming circuit, forms LED supply power voltage for described low-voltage DC being carried out rectifying and wave-filtering;
DC output, is connected with described rectifying and wave-filtering output circuit output, to export described LED supply power voltage;
Detect feedback circuit, its input is connected with described rectifying and wave-filtering output circuit, output is connected with described pwm control circuit, for detecting the voltage of rectifying and wave-filtering output circuit output and generating feedback signal, this feedback signal inputs to described pwm control circuit, stablizes according to this feedback signal control LED supply power voltage to make described pwm control circuit;
Radio-frequency (RF) transmit-receive circuit, is connected with described pwm control circuit, for receiving the remote control command that external remote sends, and this remote control command being inputed to pwm control circuit, controlling to make described pwm control circuit according to this remote control command to described switching circuit.
Further, described switching circuit comprises MOS switching tube, and the drain electrode of described MOS switching tube is connected to the output of described current rectifying and wave filtering circuit, and the source electrode of described MOS switching tube is by the 19 grounding through resistance, and the grid of described MOS switching tube connects one drive circuit.
Further, described transforming circuit comprises transformer, and the primary coil of described transformer is connected to the output of described current rectifying and wave filtering circuit, and the secondary coil of described transformer is connected to the input of described rectifying and wave-filtering output circuit.
Further, described pwm control circuit comprises pwm chip, and described pwm chip comprises inverting input, output, reference voltage end, end is compared in input, boost input, earth terminal, raster data model output and power end;
Described inverting input is connected to VCC power end by the 17 resistance, optocoupler receiving tube, the tenth resistance successively, described optocoupler receiving tube is coupled with the optocoupler transmitting tube detected in feedback circuit, and described output is connected to described inverting input by the 6th electric capacity in parallel and the 23 resistance;
Described reference voltage end is connected to the output of described current rectifying and wave filtering circuit by the 24 resistance that connects successively and the 20 resistance, and described reference voltage end is by the 26 grounding through resistance;
End is connected to described MOS switching tube source electrode by the 31 resistance is compared in described input, described boosting input is connected to the VDD power end of the feedback coil of described transformer by the 28 resistance, described VDD power end connects a rectification filtering voltage stabilizing circuit; Described raster data model output is connected to described drive circuit, and described power end is connected to the output of described rectification filtering voltage stabilizing circuit, and the output of described rectification filtering voltage stabilizing circuit is VCC power end.
Further, described radio-frequency (RF) transmit-receive circuit comprises radio frequency chip, 6th triode, 7th triode, 8th triode and the 9th triode, the transmission pin of described radio frequency chip is connected to the base stage of the 6th triode by the 51 resistance, the grounded emitter of described 6th triode, the collector electrode of described 6th triode is connected to the VCC 5V pin of radio frequency chip by one the 49 resistance, the base stage of described 7th triode is connected with the collector electrode of described 6th triode, the grounded emitter of described 7th triode, the collector electrode of described 7th triode is connected to the VCC 5V pin of radio frequency chip by the 50 resistance, the collector electrode of described 7th triode is also connected to the boosting input of described pwm chip,
The reception pin of described radio frequency chip is connected to the collector electrode of the 8th triode, the collector electrode of described 8th triode is also connected to the VDD 3.3V pin of radio frequency chip by the 52 resistance, the grounded emitter of described 8th triode, the base stage of described 8th triode is connected with the collector electrode of described 9th triode, the collector electrode of described 9th triode is connected to the VDD 3.3V pin of radio frequency chip by the 53 resistance, the emitter base of described 9th triode, the base stage of described 9th triode is connected to the earth terminal of described pwm chip by the 54 resistance.
The beneficial effects of the utility model are: radio frequency light modulation LED power supply of the present utility model, can receive the remote control command of external remote by RF-wise and carry out switch control rule, brightness adjustment control etc.So, it is easy to use, brings user intelligentized experience, meets the requirement of user to intelligent residence.
Accompanying drawing explanation
Fig. 1 is the functional-block diagram of the utility model embodiment radio frequency light modulation LED power supply;
Fig. 2 is the circuit diagram of radio frequency light modulation LED power supply in the utility model embodiment;
Fig. 3 is the circuit diagram of radio-frequency (RF) transmit-receive circuit in the utility model embodiment.
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Below with reference to drawings and the specific embodiments describe in detail the technical solution of the utility model so as clearer, understand invention essence of the present utility model intuitively.
With reference to shown in Fig. 1, the utility model embodiment provides a kind of radio frequency light modulation LED power supply, comprises AC input 10, EMI circuit 20, current rectifying and wave filtering circuit 30, switching circuit 40, pwm control circuit 90, transforming circuit 50, rectifying and wave-filtering output circuit 60, DC output 70, detects feedback circuit 80 and radio-frequency (RF) transmit-receive circuit 100.
Concrete, AC input 10 is in order to input ac voltage.EMI circuit 20 is connected with described AC input 10, for carrying out anti-interference process to alternating voltage.Current rectifying and wave filtering circuit 30 is connected with described EMI circuit 20, forms high voltage direct current for carrying out rectifying and wave-filtering to the described alternating voltage after anti-interference process; Switching circuit 40 is connected with described current rectifying and wave filtering circuit 30, is turned on or off described high voltage direct current to be converted to pulse voltage output for responsive control signal.That is, under the on off operating mode of switching circuit 40, switching circuit exports DC pulse, this DC pulse i.e. above-mentioned pulse voltage.Pwm control circuit 90 is connected with described switching circuit 40, for exporting described control signal to control the pulsewidth of the pulse voltage of described switching circuit 40 output.
Transforming circuit 50 is connected with described switching circuit 40, and the pulse voltage for exporting described switching circuit 40 is carried out voltage transformation and formed low-voltage DC.Rectifying and wave-filtering output circuit 60 is connected with described transforming circuit 50, forms LED supply power voltage for described low-voltage DC being carried out rectifying and wave-filtering.
DC output 70 is connected with described rectifying and wave-filtering output circuit 60 output, to export described LED supply power voltage.
The input detecting feedback circuit 80 is connected with described rectifying and wave-filtering output circuit 60, output is connected with described pwm control circuit 90, for detecting the voltage of rectifying and wave-filtering output circuit 60 output and generating feedback signal, this feedback signal inputs to described pwm control circuit 90, stablizes according to this feedback signal control LED supply power voltage to make described pwm control circuit 90.
Radio-frequency (RF) transmit-receive circuit 100 is connected with described pwm control circuit 90, for receiving the remote control command that external remote sends, and this remote control command is inputed to pwm control circuit 90, described switching circuit 40 is controlled according to this remote control command to make described pwm control circuit 90.Such as, control LED lamp open or close by the break-make of control switch circuit 40, the pulsewidth of the pulse voltage that control switch circuit 40 exports realizes light modulation etc.
With reference to shown in Fig. 2, in a specific embodiment of the present utility model, EMI circuit 20 comprises electric capacity ZNR1, electric capacity CX1, the 5th resistance R5, the 8th resistance R8, inductance L 1, inductance L 2 etc., carries out anti-interference filtration process by the alternating voltage of EMI circuit 20 pairs of AC input inputs.Current rectifying and wave filtering circuit 30 comprises rectifier bridge BR1, the second resistance R2, inductance L 3, electric capacity ZNR2, electric capacity C3 etc., carries out rectifying and wave-filtering formation high voltage direct current by the alternating voltage after current rectifying and wave filtering circuit 30 pairs of EMI circuit 20 process.
Switching circuit 40 comprises MOS switching tube Q2, the drain electrode of described MOS switching tube Q2 is connected to the output of described current rectifying and wave filtering circuit 30, the source electrode of described MOS switching tube Q2 is by the 19 resistance R19 ground connection, and the grid of described MOS switching tube Q2 connects one drive circuit (by diode D5, the 12 resistance R12, the 16 resistance R16).Grid is also connected to source electrode by the 15 resistance R15, and drain electrode is also connected to source electrode by electric capacity C6.Transforming circuit 50 comprises transformer T1, and the primary coil of described transformer T1 is connected to the output of described current rectifying and wave filtering circuit 30, and the secondary coil of described transformer T1 is connected to the input of described rectifying and wave-filtering output circuit 60.
Rectifying and wave-filtering output circuit 60 comprises the first resistance R1, the 3rd resistance R2, the first electric capacity C1, electric capacity EC1, electric capacity EC2, electric capacity EC3, electric capacity EC3, electric capacity C5, the 7th resistance R7, electric capacity EC10, electric capacity C4 etc.The low-voltage DC exported by this rectifying and wave-filtering output circuit 60 couples of transformer T1 is carried out rectifying and wave-filtering and forms LED supply power voltage.
Pwm control circuit 90 comprises pwm chip U3, and described pwm chip U3 comprises inverting input INV, output COMP, reference voltage end MULT, end CS is compared in input, boost input ZCD, earth terminal GND, raster data model output DG and power end VCC.Described inverting input INV is connected to VCC power end by the 17 resistance R17, optocoupler receiving tube U2B, the tenth resistance R10 successively, described optocoupler receiving tube U2B is coupled with the optocoupler transmitting tube U2A detected in feedback circuit 80, and described output COMP is connected to described inverting input INV by the 6th electric capacity C6 in parallel and the 23 resistance R23.Described reference voltage end MULT is connected to the output of described current rectifying and wave filtering circuit 30 by the 24 resistance R24 that connects successively and the 20 resistance R20, and described reference voltage end MULT is by the 26 resistance R26 ground connection.End CS is connected to described MOS switching tube Q2 source electrode by the 31 resistance R31 is compared in described input, described boosting input ZCD is connected to the VDD power end of the feedback coil of described transformer T1 by the 28 resistance R28, described VDD power end connects a rectification filtering voltage stabilizing circuit; Described raster data model output DG is connected to described drive circuit, and described power end VCC is connected to the output of described rectification filtering voltage stabilizing circuit, and the output of described rectification filtering voltage stabilizing circuit is VCC power end.Above-mentioned rectification filtering voltage stabilizing circuit comprises electric capacity C7, the 6th resistance R6, diode D5, electric capacity EC5, triode Q4, the 27 resistance R27, voltage stabilizing didoe ZD3, diode D32, electric capacity EC4, electric capacity C13 etc., and it is that pwm chip U3 powers that the induced voltage of the feedback coil of transformer T1 is carried out the formation stable dc power supplies such as rectifying and wave-filtering by this rectification filtering voltage stabilizing circuit.
Detect feedback circuit 80 and comprise diode D6, diode D7, the 22 resistance R22, the 21 resistance R21, electric capacity C10, electric capacity C11, the 29 resistance R29, the 30 resistance R30, the 25 resistance R25, the 33 resistance R33, photoelectrical coupler (comprising above-mentioned U2A, U2B), reference voltage stabilizing source U4 etc.This detection feedback circuit 80 detects the voltage that rectifying and wave-filtering output circuit 60 exports, and is compared by the reference voltage of this voltage and reference voltage stabilizing source U4, production feedback signal, and this feedback signal inputs to pwm chip U3 again.
With reference to shown in Fig. 3, radio-frequency (RF) transmit-receive circuit comprises radio frequency chip U14, 6th triode Q6, 7th triode Q7, 8th triode Q8 and the 9th triode Q9, the transmission pin of described radio frequency chip U14 is connected to the base stage of the 6th triode Q6 by the 51 resistance R51, the grounded emitter of described 6th triode Q6, the collector electrode of described 6th triode Q6 is connected to the VCC 5V pin of radio frequency chip U14 by one the 49 resistance R49, the base stage of described 7th triode Q7 is connected with the collector electrode of described 6th triode Q6, the grounded emitter of described 7th triode Q7, the collector electrode of described 7th triode Q7 is connected to the VCC 5V pin of radio frequency chip U14 by the 50 resistance R50, the collector electrode of described 7th triode Q7 is also connected to the boosting input ZCD of described pwm chip U3.
The reception pin of radio frequency chip U14 is connected to the collector electrode of the 8th triode Q8, the collector electrode of described 8th triode Q8 is also connected to the VDD 3.3V pin of radio frequency chip U14 by the 52 resistance R52, the grounded emitter of described 8th triode Q8, the base stage of described 8th triode Q8 is connected with the collector electrode of described 9th triode Q9, the collector electrode of described 9th triode Q9 is connected to the VDD 3.3V pin of radio frequency chip U14 by the 53 resistance R53, the emitter base of described 9th triode Q9, the base stage of described 9th triode Q9 is connected to the earth terminal of described pwm chip U14 by the 54 resistance R54.
According to radio frequency light modulation LED power supply of the present utility model, can the remote control command of external remote be received by RF-wise and carry out switch control rule, brightness adjustment control etc.So, it is easy to use, brings user intelligentized experience, meets the requirement of user to intelligent residence.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. a radio frequency light modulation LED power supply, is characterized in that, comprising:
AC input, in order to input ac voltage;
EMI circuit, is connected with described AC input, for carrying out anti-interference process to alternating voltage;
Current rectifying and wave filtering circuit, is connected with described EMI circuit, forms high voltage direct current for carrying out rectifying and wave-filtering to the described alternating voltage after anti-interference process;
Switching circuit, is connected with described current rectifying and wave filtering circuit, is turned on or off described high voltage direct current to be converted to pulse voltage output for responsive control signal;
Pwm control circuit, is connected with described switching circuit, for exporting described control signal to control the pulsewidth of the pulse voltage of described switching circuit output;
Transforming circuit, is connected with described switching circuit, and the pulse voltage for exporting described switching circuit is carried out voltage transformation and formed low-voltage DC;
Rectifying and wave-filtering output circuit, is connected with described transforming circuit, forms LED supply power voltage for described low-voltage DC being carried out rectifying and wave-filtering;
DC output, is connected with described rectifying and wave-filtering output circuit output, to export described LED supply power voltage;
Detect feedback circuit, its input is connected with described rectifying and wave-filtering output circuit, output is connected with described pwm control circuit, for detecting the voltage of rectifying and wave-filtering output circuit output and generating feedback signal, this feedback signal inputs to described pwm control circuit, stablizes according to this feedback signal control LED supply power voltage to make described pwm control circuit;
Radio-frequency (RF) transmit-receive circuit, is connected with described pwm control circuit, for receiving the remote control command that external remote sends, and this remote control command being inputed to pwm control circuit, controlling to make described pwm control circuit according to this remote control command to described switching circuit.
2. radio frequency light modulation LED power supply according to claim 1, it is characterized in that, described switching circuit comprises MOS switching tube, the drain electrode of described MOS switching tube is connected to the output of described current rectifying and wave filtering circuit, the source electrode of described MOS switching tube is by the 19 grounding through resistance, and the grid of described MOS switching tube connects one drive circuit.
3. radio frequency light modulation LED power supply according to claim 2, it is characterized in that, described transforming circuit comprises transformer, and the primary coil of described transformer is connected to the output of described current rectifying and wave filtering circuit, and the secondary coil of described transformer is connected to the input of described rectifying and wave-filtering output circuit.
4. radio frequency light modulation LED power supply according to claim 3, it is characterized in that, described pwm control circuit comprises pwm chip, and described pwm chip comprises inverting input, output, reference voltage end, end is compared in input, boost input, earth terminal, raster data model output and power end;
Described inverting input is connected to VCC power end by the 17 resistance, optocoupler receiving tube, the tenth resistance successively, described optocoupler receiving tube is coupled with the optocoupler transmitting tube detected in feedback circuit, and described output is connected to described inverting input by the 6th electric capacity in parallel and the 23 resistance;
Described reference voltage end is connected to the output of described current rectifying and wave filtering circuit by the 24 resistance that connects successively and the 20 resistance, and described reference voltage end is by the 26 grounding through resistance;
End is connected to described MOS switching tube source electrode by the 31 resistance is compared in described input, described boosting input is connected to the VDD power end of the feedback coil of described transformer by the 28 resistance, described VDD power end connects a rectification filtering voltage stabilizing circuit; Described raster data model output is connected to described drive circuit, and described power end is connected to the output of described rectification filtering voltage stabilizing circuit, and the output of described rectification filtering voltage stabilizing circuit is VCC power end.
5. radio frequency light modulation LED power supply according to claim 4, it is characterized in that, described radio-frequency (RF) transmit-receive circuit comprises radio frequency chip, 6th triode, 7th triode, 8th triode and the 9th triode, the transmission pin of described radio frequency chip is connected to the base stage of the 6th triode by the 51 resistance, the grounded emitter of described 6th triode, the collector electrode of described 6th triode is connected to the VCC 5V pin of radio frequency chip by one the 49 resistance, the base stage of described 7th triode is connected with the collector electrode of described 6th triode, the grounded emitter of described 7th triode, the collector electrode of described 7th triode is connected to the VCC 5V pin of radio frequency chip by the 50 resistance, the collector electrode of described 7th triode is also connected to the boosting input of described pwm chip,
The reception pin of described radio frequency chip is connected to the collector electrode of the 8th triode, the collector electrode of described 8th triode is also connected to the VDD 3.3V pin of radio frequency chip by the 52 resistance, the grounded emitter of described 8th triode, the base stage of described 8th triode is connected with the collector electrode of described 9th triode, the collector electrode of described 9th triode is connected to the VDD 3.3V pin of radio frequency chip by the 53 resistance, the emitter base of described 9th triode, the base stage of described 9th triode is connected to the earth terminal of described pwm chip by the 54 resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420785179.1U CN204350367U (en) | 2014-12-11 | 2014-12-11 | Radio frequency light modulation LED power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420785179.1U CN204350367U (en) | 2014-12-11 | 2014-12-11 | Radio frequency light modulation LED power supply |
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| Publication Number | Publication Date |
|---|---|
| CN204350367U true CN204350367U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420785179.1U Expired - Fee Related CN204350367U (en) | 2014-12-11 | 2014-12-11 | Radio frequency light modulation LED power supply |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107708260A (en) * | 2017-10-30 | 2018-02-16 | 东莞市铭皓照明有限公司 | It is a kind of that the circuit at DC low-voltage end is changed by alternating current interval break-make number |
| CN108271297A (en) * | 2018-03-06 | 2018-07-10 | 中山泽东照明有限公司 | A kind of LED light intelligent drive circuit |
| CN109194134A (en) * | 2018-09-06 | 2019-01-11 | 西安锐晶微电子有限公司 | A kind of DC-DC power module |
| CN110996442A (en) * | 2019-12-04 | 2020-04-10 | 江西洪都航空工业集团有限责任公司 | LED drive circuit |
| CN111081002A (en) * | 2020-01-16 | 2020-04-28 | 惠州高盛达智联科技有限公司 | Remote controller circuit |
-
2014
- 2014-12-11 CN CN201420785179.1U patent/CN204350367U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107708260A (en) * | 2017-10-30 | 2018-02-16 | 东莞市铭皓照明有限公司 | It is a kind of that the circuit at DC low-voltage end is changed by alternating current interval break-make number |
| CN108271297A (en) * | 2018-03-06 | 2018-07-10 | 中山泽东照明有限公司 | A kind of LED light intelligent drive circuit |
| CN109194134A (en) * | 2018-09-06 | 2019-01-11 | 西安锐晶微电子有限公司 | A kind of DC-DC power module |
| CN110996442A (en) * | 2019-12-04 | 2020-04-10 | 江西洪都航空工业集团有限责任公司 | LED drive circuit |
| CN111081002A (en) * | 2020-01-16 | 2020-04-28 | 惠州高盛达智联科技有限公司 | Remote controller circuit |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20161211 |