Power control method and apparatus for adjusting light of gas discharging light source

Abstract

The invention discloses a gas discharge lamp dimming power control method and a device, which adopts a controllable element of which an electromagnetic force acts on an oscillation circuit so that the working frequency of a driver of an electronic energy-saving lamp is controlled by the change of a stacked electromagnetic field to realize the conversion between voltage and frequency and realizes a hundred percent to zero of output power control of the electronic energy-saving lamp via adjusting an input voltage which changes in the range of 0 volt to 10 volts. The device consists of a rectifier and filter circuit, a self-excited oscillating circuit, a PPFC circuit and a resonant circuit, wherein the output of the resonant circuit is connected with a gas discharge lamp, a coupling driving unit is connected on the self-excited oscillating circuit, an electromagnetic frequency modulation control circuit is connected with an input end of the coupling driving unit, and an adjustable directcurrent supply in the range of 0 volt to 10 volts is connected with an input end of the electromagnetic frequency modulation control circuit. When implemented, the invention only adds dimming controlinto the original circuit without needing to redesign a new circuit so that a dimming circuit doesn't influence the parameters of the main circuit and the original technical parameters of the electronic energy-saving lamp also basically need not to be changed. The invention has the advantages of simple circuit, no need of complex manufacturing technology, high reliability, low manufacturing cost,etc.

Description

technical field [0001] The invention relates to an energy-saving lighting technology, in particular to a method and device for controlling the dimming power of a gas discharge light source. Background technique [0002] At present, all electronic energy-saving lamps cannot be adjusted in brightness like incandescent lamps. If dimming is to be achieved, a dedicated chip must be used to achieve dimming function like the electronic ballast of fluorescent lamps. That is to say, most dimmable gas Discharge light sources all use ASICs to realize the dimming function, but this dimming method, the circuit is very complicated, requires high manufacturing technology and expensive production costs, it is difficult to realize it in electronic energy-saving lamps, and thus It is difficult to popularize and promote in the lighting market. Contents of the invention [0003] The object of the present invention is to provide a gas discharge light source dimming power control method and de...

AI Technical Summary

Problems solved by technology

[0002] At present, all electronic energy-saving lamps cannot be adjusted in brightness like incandescent lamps. If dimming is to be achieved, a dedicated chip must be used to achieve dimming function like the electronic ballast of fluorescent lamps. That is to say, most dimmable gas Discharge light sources all use ASICs to realize the dimming function, but this dimming method, the circuit is very complicated, requires high manufacturing technology and expensive production costs, it is difficult to realize it in electronic energy-saving lamps, and thus Difficult to popularize in the lighting market

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