CN204652714U - A kind of LED drive power of domestic intelligent light modulation - Google Patents
A kind of LED drive power of domestic intelligent light modulation Download PDFInfo
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- CN204652714U CN204652714U CN201520110884.6U CN201520110884U CN204652714U CN 204652714 U CN204652714 U CN 204652714U CN 201520110884 U CN201520110884 U CN 201520110884U CN 204652714 U CN204652714 U CN 204652714U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model relates to a kind of LED drive power of domestic intelligent light modulation, and it belongs to Switching Power Supply especially LED drive power application.It comprises electromagnetic interface filter, current rectifying and wave filtering circuit, clamping protective circuit, optical couple isolation drive circuit, pwm control circuit and LED load.In particular, it also comprises one-chip computer module and current collection circuit.Adopt this device, it environmentally intensity of illumination can carry out lamplight brightness regulatory function automatically, automatically carries out LED switch control functions according to induction human infrared signal; Also can receive wireless remote control signals, carry out light-modulating mode switching, carry out the function of manual light adjustment.
Description
Technical field
The utility model relates to a kind of LED drive power of domestic intelligent light modulation, and it belongs to Switching Power Supply especially LED drive power application.
Background technology
The mode of current LED light modulation mainly contains three kinds: linearity light adjusting, controllable silicon light modulation and PWM light modulation m3.Linearity light adjusting, mainly based on simple voltage divider principle, adopts simulation dimming controlling method, and under simulation brightness adjustment control, by the brightness adjustment control regulating the forward operating current of LED to realize LED, brightness adjustment control scope can reach 10: 1.Linearity light adjusting application is simple, does not produce interference; But dumb, inefficiency, and when reduction LED current, LED light spectral migration can be caused, also can produce too much heat because of dividing potential drop simultaneously, thus affect the life-span of LED.Controllable silicon light modulation is generally used in current ordinary incandescent lamp and electricity-saving lamp application, its operation principle is that the waveform of input voltage is cut ripple by the angle of flow, produce a tangential output voltage waveforms, reduce the effective value of output voltage, reduce the power of normal load.The advantage of controllable silicon light modulation is that operating efficiency is higher, stable performance, and occupies certain market, and technology is more ripe.But also there are some design defect when applying, controllable silicon destroys sinusoidal wave waveform, thus reduces power factor (PF) value, increases harmonic constant, can produce serious interference signal on the line simultaneously; And after controlled silicon conducting, need one to maintain electric current to keep conducting, maintain electric current usually between several milliamperes to tens milliamperes, if it is inadequate to maintain electric current, then the angle of flow is unstable, the waveform exported also can be uneven, and vibration and spike can be produced, just there will be flicker when such instability is exported and is added on LED.PWM light regulating technology is considered to the most promising LED light regulating technology at present, utilizes pwm control signal, is regulated the luminosity of LED by the duty ratio of the forward operating current of control LED.
Utility model content
In order to solve the problems of the technologies described above, the purpose of this utility model aims to provide a kind of LED drive power of domestic intelligent light modulation, it environmentally intensity of illumination can carry out lamplight brightness regulatory function automatically, automatically carries out LED switch control functions according to induction human infrared signal; Also can receive wireless remote control signals, carry out light-modulating mode switching, carry out the function of manual light adjustment.
In order to realize above-mentioned technical purpose, technical solution adopted in the utility model is as follows:
A LED drive power for domestic intelligent light modulation, comprises electromagnetic interface filter, current rectifying and wave filtering circuit, clamping protective circuit, optical couple isolation drive circuit, pwm control circuit and LED load;
Further, wherein, described electromagnetic interface filter and current rectifying and wave filtering circuit are electrically connected and suppress the common mode disturbances from electrical network or Switching Power Supply;
Further, described current rectifying and wave filtering circuit and clamping protective circuit are electrically connected and are filtered into direct voltage to the ac voltage rectifier from electromagnetic interface filter;
Further, described clamping protective circuit is carried out clamper to the peak voltage that transformer leakage inductance is formed and is absorbed with protection switch pipe;
Further, described optical couple isolation drive circuit and clamping protective circuit are electrically connected;
Further, described pwm control circuit and optical couple isolation drive circuit are electrically connected;
In particular, it also comprises
One one-chip computer module; Described one-chip computer module and pwm control circuit are electrically connected, and it also comprises single-chip microcomputer main body, wireless transmit/receive units, optical sensor unit and human body sensing unit; Described single-chip microcomputer main body is electrically connected mutually with wireless transmit/receive units, optical sensor unit and human body sensing unit respectively;
One current collection circuit; Described current collection circuit is electrically connected mutually with one-chip computer module, LED load respectively.
Preferably, described single-chip microcomputer main body adopts STC89C52 single-chip microcomputer.
Preferably, described wireless transmit/receive units adopts JF24D radio transmitting and receiving chip.
The beneficial effects of the utility model:
1, by regulating the duty ratio of pwm control circuit, and then regulate LED drive current, thus also have adjusted the luminosity of LED load.
2, intelligent dimming and hand-operating light pattern can be switched to LED load by wireless transmit/receive units to get off to change LED load luminosity and regulate.
3, by human body sensing unit induction human infrared signal, can automatically to LED switch control rule.
4, by optical sensor unit, LED surrounding environment light is gathered, make LED luminosity self adaptation surrounding environment.
Accompanying drawing explanation
Fig. 1 is the utility model principle framework figure;
Fig. 2 is the utility model one-chip computer module device circuitry connection diagram;
Fig. 3 is the utility model circuit connection diagram.
Embodiment
As shown in Figure 1, LED drive power comprises electromagnetic interface filter, current rectifying and wave filtering circuit, clamping protective circuit, optical couple isolation drive circuit, pwm control circuit, one-chip computer module, current collection circuit and LED load.
As shown in Figure 3, electromagnetic interface filter and current rectifying and wave filtering circuit are electrically connected.Electromagnetic interface filter circuit comprises common mode inductance T, differential mode filter capacitor C1, C2, common mode filtering electric capacity C3, C4, filter inductance L1, L2.T is inoperative to series mode interference, but when there is common mode disturbances, because the flow direction of two coils is identical, after overcoupling, total inductance amount increases rapidly, therefore presents very large induction reactance to common-mode signal, makes it to not easily pass through.
Current rectifying and wave filtering circuit and clamping protective circuit are electrically connected and are filtered into direct voltage to the ac voltage rectifier from electromagnetic interface filter.Current rectifying and wave filtering circuit comprises rectification circuit and filter circuit.The alternating voltage of input suppresses, after conducted interference, with filtering, convert alternating current to be become direct voltage by rectification through electromagnetic interface filter.Rectification circuit industrial-frequency alternating current is converted to the Rectified alternating current with direct current composition, and filter circuit is by the alternating component filtering in pulsating direct current, increases flip-flop.
Clamping protective circuit and optical couple isolation drive circuit are electrically connected.Clamping protective circuit adopts RCD clamp circuit, and the peak voltage that transformer leakage inductance is formed is carried out to clamper and absorbs with protection switch pipe.
Pwm control circuit and optical couple isolation drive circuit are electrically connected, and by regulating the pulse signal duty ratio of input to modulate the grid control signal of LED drive chip to power field effect pipe, thus regulate the size by LED current.When pwm signal duty ratio increases, output dc voltage increases, and is namely increased by the electric current of LED; When pwm signal duty ratio reduces, output dc voltage reduces, and is namely reduced by LED current.Show, by regulating pwm signal duty ratio, the function of LED being carried out to light modulation can be realized.
From Fig. 1, Fig. 2 and Fig. 3, one-chip computer module and pwm control circuit are electrically connected.One-chip computer module comprises single-chip microcomputer main body, wireless transmit/receive units, optical sensor unit and human body sensing unit; Described single-chip microcomputer main body is electrically connected mutually with wireless transmit/receive units, optical sensor unit and human body sensing unit respectively.The utility model adopts STC89c52 single-chip microcomputer, and wireless transmit/receive units passes through by SPI Serial Peripheral Interface (SPI) and 52 single chip communications, and wherein, wireless transmit/receive units adopts JF24D transceiving chip.
Optical sensor unit gathers LED surrounding environment light, and by gathered Signal transmissions to 52 single-chip microcomputer.
Human body sensing unit induction human infrared signal, and human infrared signal is transferred to 52 single-chip microcomputers.Wherein, human body sensing unit can respond to the infrared signal of 7m to 10m.
Workflow of the present utility model:
By wireless transmit/receive units and 52 single chip communications, the mode of operation to LED regulates external remote.Such as: the signal whether 52 microprocessor detect wireless transmit/receive units have pattern to switch, if detect that pattern switches, pattern switching mark is put.Then according to concrete light-modulating mode, adjustment current value: 1, under pattern with an automatic light meter, can adjust the size of setting current value automatically according to the luminance signal detected and infrared signal.2, under hand-operating light pattern, 52 single-chip microcomputers can according to the remote signal setting current value received.Current collection circuit gathers the drive current of LED load, and current value is transferred to 52 single-chip microcomputers, the current value of the actual current value received and setting compares by 52 single-chip microcomputers, pwm control circuit is transferred to by the result compared, the duty ratio of pwm control circuit adjustment pwm signal, and drive optical couple isolation drive circuit, thus realize the current value current value of actual for system output being adjusted to setting, reach dimming effect.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present utility model.
Claims (3)
1. a LED drive power for domestic intelligent light modulation, comprises electromagnetic interface filter, current rectifying and wave filtering circuit, clamping protective circuit, optical couple isolation drive circuit, pwm control circuit and LED load;
Wherein, described electromagnetic interface filter and current rectifying and wave filtering circuit are electrically connected and suppress the common mode disturbances from electrical network or Switching Power Supply;
Described current rectifying and wave filtering circuit and clamping protective circuit are electrically connected and are filtered into direct voltage to the ac voltage rectifier from electromagnetic interface filter;
Described clamping protective circuit is carried out clamper to the peak voltage that transformer leakage inductance is formed and is absorbed with protection switch pipe;
Described optical couple isolation drive circuit and clamping protective circuit are electrically connected;
Described pwm control circuit and optical couple isolation drive circuit are electrically connected;
It is characterized in that: also comprise
One one-chip computer module; Described one-chip computer module and pwm control circuit are electrically connected, and it also comprises single-chip microcomputer main body, wireless transmit/receive units, optical sensor unit and human body sensing unit; Described single-chip microcomputer main body is electrically connected mutually with wireless transmit/receive units, optical sensor unit and human body sensing unit respectively;
One current collection circuit; Described current collection circuit is electrically connected mutually with one-chip computer module, LED load respectively.
2. the LED drive power of a kind of domestic intelligent light modulation according to claim 1, is characterized in that: described single-chip microcomputer main body adopts STC89C52 single-chip microcomputer.
3. the LED drive power of a kind of domestic intelligent light modulation according to claim 1, is characterized in that: described wireless transmit/receive units adopts JF24D radio transmitting and receiving chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520110884.6U CN204652714U (en) | 2015-02-15 | 2015-02-15 | A kind of LED drive power of domestic intelligent light modulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520110884.6U CN204652714U (en) | 2015-02-15 | 2015-02-15 | A kind of LED drive power of domestic intelligent light modulation |
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| Publication Number | Publication Date |
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| CN204652714U true CN204652714U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520110884.6U Expired - Fee Related CN204652714U (en) | 2015-02-15 | 2015-02-15 | A kind of LED drive power of domestic intelligent light modulation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105120575A (en) * | 2015-09-18 | 2015-12-02 | 上海泓语电气技术有限公司 | LED wide-scope accurate light modulation circuit |
| CN106132014A (en) * | 2016-07-17 | 2016-11-16 | 安徽卓越电气有限公司 | A kind of intelligent LED explosion-proof lamp control system |
| CN107466134A (en) * | 2017-08-28 | 2017-12-12 | 盐城莱廷绍工业技术有限公司 | It is a kind of to dim the LED drive circuit to go out |
| CN107466133A (en) * | 2017-08-28 | 2017-12-12 | 盐城莱廷绍工业技术有限公司 | A kind of multistage exports LED drive device |
| CN107517519A (en) * | 2017-08-28 | 2017-12-26 | 盐城莱廷绍工业技术有限公司 | A kind of segmented light modulation output LED drive device |
-
2015
- 2015-02-15 CN CN201520110884.6U patent/CN204652714U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105120575A (en) * | 2015-09-18 | 2015-12-02 | 上海泓语电气技术有限公司 | LED wide-scope accurate light modulation circuit |
| CN106132014A (en) * | 2016-07-17 | 2016-11-16 | 安徽卓越电气有限公司 | A kind of intelligent LED explosion-proof lamp control system |
| CN107466134A (en) * | 2017-08-28 | 2017-12-12 | 盐城莱廷绍工业技术有限公司 | It is a kind of to dim the LED drive circuit to go out |
| CN107466133A (en) * | 2017-08-28 | 2017-12-12 | 盐城莱廷绍工业技术有限公司 | A kind of multistage exports LED drive device |
| CN107517519A (en) * | 2017-08-28 | 2017-12-26 | 盐城莱廷绍工业技术有限公司 | A kind of segmented light modulation output LED drive device |
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