Electronic ballast in use for gas discharge lamp

A technology for electronic ballasts and gas discharge lamps, which is applied in the direction of inductors, circuits, transformers, etc., can solve problems such as difficulties, low cost performance, and low service life, and achieve lighting performance and cost-effective improvement, fewer electronic components, and improved efficiency effect
CN1874637AInactive Publication Date: 2006-12-06徐建光 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
徐建光
Publication Date
2006-12-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention comprises: a power network filter, a rectifying and filtering module, an oscillator. Said oscillator adopts self-exciting type oscillating circuit; the drain electrode of MOSFET in the self-exiting type oscillating circuit is connected to a high leakage reactance type oscillating transformer in series, and its source electrode is connected to a high leakage reactance type high frequency transformer; or the collector of the triode is connected to a high leakage reactance oscillating transformer, and its emitting electrode is connected to a high leakage reactance type high frequency transformer in series; the output winding of the high leakage reactance type oscillator and the high frequency transformer are respectively connected to a coupling capacitor in series and then is connected to a discharging lamp.
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Description

technical field

[0001] The invention belongs to the technical field of electric lamp manufacturing, in particular to an electronic ballast for a gas discharge lamp. Background technique

[0002] Since the advent of gas discharge lamps for nearly half a century, after continuous development, from mercury lamps and sodium lamps to metal halide lamps in the past ten years, the luminous characteristics have been continuously improved and perfected, and the lighting device has also changed from bulky inductive ballasts to metal halide lamps. The device has developed into a lightweight electronic ballast.

[0003] At present, the electronic ballasts for gas discharge lamps developed at home and abroad all use separate excitation switching circuits to achieve the purpose of outputting high-frequency power. The signal is formed by an integrated circuit, and then drives the half-bridge or full-bridge type Switching power amplifier for feeding gas discharge la...

Claims

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