Digital electronic ballast circuit for gas discharge cold light source lamp

Abstract

The invention relates to a digital electronic ballast circuit for a gas discharge cold light source lamp. The digital electronic ballast circuit is characterized by mainly comprising an SOC control part, a rectification circuit part, a series connection voltage stabilization part, an inversion part, a startup circuit part and an auxiliary power supply part; and the various parts are in electric connection by conducting wires. The digital electronic ballast circuit adopts a highly-integrated SOC chip containing a digital control system program for whole-process state monitoring; the detection of an input power supply, the power control, the correction of power factors and the monitoring of each inner circuit are completed by the SOC so as to realize high stability, high safety and digital intelligent management of a lighting lamp. A traditional switch transformer is cancelled in the circuit and a set of independent power supply circuit is adopted; and as the traditional transformer consumes a mass of copper materials and other nonferrous metals, has high power consumption and high temperature rise, and has the disadvantages of large volume, heavy weight, low efficiency, low power factor and the like, the traditional transformer is gradually eliminated. The digital electronic ballast circuit is suitable for a metal halid lamp, a xenon lamp, a sodium lamp and other high-voltage and low-voltage gas discharge (cold light source) lamps powered by a common commercial power supply, and has the advantages of wide application range, environmental protection, energy conservation, high safety, high stability and good popularization value.

Description

technical field [0001] The invention relates to a digitally controlled electronic ballast circuit for lighting fixtures. The electronic ballast circuit is based on the digital intelligent management of SOC (System on Chip) chips and related circuits, and the traditional switching transformer is canceled in the circuit, and a set of Independent power supply circuit, suitable for high and low pressure gas discharge lamps such as metal halide lamps, xenon lamps, and sodium lamps. Background technique [0002] HID is the English abbreviation of High intensity Discharge high-pressure gas discharge lamp, which can be called a gas discharge (cold light source) lamp. Its principle is to fill the UV-cut anti-ultraviolet crystal quartz glass tube with various chemical gases, most of which are inert gases such as xenon (Xenon) and iodide, and then pass through the ballast (Ballast) to 220V The voltage is boosted instantaneously, and the inert gas electrons in the quartz tube are excit...

AI Technical Summary

Problems solved by technology

[0003] At present, based on the digital intelligent management of SOC chips and related circuits, and canceling the traditional switching transformer in the circuit, a set of independent power supply circuits are used, which is suitable for digital control of high and low pressure gas discharge lamps such as metal halide lamps, xenon lamps, and sodium lamps. Type electronic ballast circuit has not been disclosed in relevant documents

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