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Light regulation method for transmitting PWM signal to control LED through power line carrier technology

A technology of PWM signal and power line carrier, applied in distribution line transmission system, wired transmission system, electric light source, etc., can solve the problems of high wiring cost, troublesome wiring, and short transmission distance, so as to reduce the cost of installation equipment and reduce wiring Effect

Inactive Publication Date: 2016-05-11
南京思飞捷软件科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing problems: The transmission distance of PWM signals through signal lines is short. If a dimmer is used to control an LED light, there will be problems such as high cost, and if other communication methods are used, wiring troubles will occur and wiring costs will be high. series of questions

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  • Light regulation method for transmitting PWM signal to control LED through power line carrier technology
  • Light regulation method for transmitting PWM signal to control LED through power line carrier technology
  • Light regulation method for transmitting PWM signal to control LED through power line carrier technology

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing and embodiment the invention is described in detail:

[0030] The invention provides a dimming method for controlling LEDs by transmitting PWM signals through power line carrier technology, adding PLC power line communication modems to both ends of the LED dimmer and the LED lamp, and using a single LED dimmer to realize long-distance transmission of PWM signals. One dimmer can control multiple lamps, and remote control can be realized directly through power line communication, thereby avoiding wiring troubles and wiring costs, and reducing overall installation equipment costs.

[0031] As an embodiment of the present invention, the present invention provides a dimming method for controlling LED by transmitting PWM signal through power line carrier technology, and the specific steps are as follows:

[0032] 1) if figure 1 As shown, a PLC power line communication modem 2 for the dimmer is installed at the rear end of the re...

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Abstract

The invention discloses a light regulation method for transmitting a PWM signal to control an LED through a power line carrier technology. An LED light regulator end and an LED lamp end are provided with PLC power line communication modems; at the LED light regulator end, a PWM signal transmitted by the light regulator is modulated by the PLC power line communication modem, the modulated PWM signal is transmitted to the PLC power line communication modem at the LED light end via a power line, the PLC power line communication modem at the LED lamp end demodulates the modulated signal transmitted by the light regulator, the demodulated signal is then transmitted to an LED driver, the brightness of the LED lamp is thus controlled, and thus, through remote transmission of the PWM signal, one light regulator can control multiple lamps and realizes the integrated control function, unnecessary wiring is reduced, and the overall mounting device cost is greatly reduced.

Description

technical field [0001] The invention relates to the field of LED dimming methods and the field of power line carrier communication, in particular to a dimming method for controlling LEDs by transmitting PWM signals through power line carrier technology. Background technique [0002] At present, most of the LED dimming is to adjust the LED light intensity by adjusting the duty cycle of the output PWM wave. The PWM signal is transmitted through the signal line, and the brightness of the light is adjusted by using a dimmer to control an LED light. [0003] Existing problems: The transmission distance of PWM signals through signal lines is short. If a dimmer is used to control an LED light, there will be problems such as high cost, and if other communication methods are used, wiring troubles will occur and wiring costs will be high. series of questions. Contents of the invention [0004] In view of the above problems, the present invention provides a dimming method for contr...

Claims

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Application Information

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IPC IPC(8): H05B37/02H04B3/54
CPCH04B3/544H05B47/185
Inventor 张晓东陆晓佳于伟
Owner 南京思飞捷软件科技有限公司
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