Power supply driver module for one-driven-two low-frequency electrodeless lamp

Abstract

The invention relates to a power supply driver module for a one-driven-two low-frequency electrodeless lamp, and belongs to the field of the application of lighting products. The power supply driver module consists of a sliding-frequency hopping control circuit, a half-bridge driver circuit, resonant circuits and a protective circuit, wherein the sliding-frequency hopping control circuit outputs two paths of pulse square waves with variable frequency to drive an upper arm and a lower arm of the half-bridge driver circuit; energy outputted by the half-bridge driver circuit is transferred to the two resonant circuits respectively to drive two mutually-independent electrodeless lamp tubes; and the protective circuit transfers error messages of the light tubes to the sliding-frequency hopping control circuit to control the energy output of the half-bridge driver circuit. In the power supply driver module, the two high-power and mutually-independent electrodeless lamp tubes are driven by an electronic ballast, so the illumination of light sources is improved, and the one-time input cost is reduced greatly under the condition of adopting the lamps with the same volume. By adopting the sliding-frequency hopping technology, the lower-temperature starting characteristic of the lamp tubes is improved, and the dependence on the consistency of the electrodeless lamp tubes is reduced.

Description

technical field [0001] The invention relates to the field of lighting, and specifically relates to a one-to-two low-frequency electrodeless lamp power drive module. Background technique [0002] As we all know: At present, electricity consumption in the lighting field accounts for 25% of all electricity consumption. The main lighting lamps include incandescent lamps, fluorescent lamps, and high-pressure gas lamps. Their common feature is that tungsten wire is used as the main luminescent material, but the disadvantage is that electrical energy is converted into light Low efficiency and short service life. However, the electrodeless lamp, which stands out in the field of "green lighting" in the 21st century, has gradually entered our daily life with its characteristics of high luminous efficiency, high color rendering, long life, no flicker, energy saving and environmental protection, shockproof, and minimal maintenance. . [0003] At present, in the field of public street...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a power drive module for electrodeless lamps, which uses an electronic ballast to drive two independent electrodeless lamp tubes to solve the problem that the lighting brightness of current electrodeless lamp street lamps cannot be improved. Raise the question

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