Start protection and intelligent control interface circuit for low frequency electrodeless lamp

Abstract

The invention discloses a start protection and intelligent control interface circuit for a low frequency electrodeless lamp. The start protection and intelligent control interface circuit for the low frequency electrodeless lamp comprises an open circuit start protection circuit, a broken lamp start protection circuit and an intelligent control interface circuit, wherein the open circuit start protection circuit ensures that a ballast is started only when a light tube of the low frequency electrodeless lamp is normally switched on; the broken lamp start protection circuit triggers a half-bridge drive circuit to perform overvoltage protection when the light tube of the low frequency electrodeless lamp is broken; and the intelligent control interface circuit performs state feedback and intelligent on-off control on the low frequency electrodeless lamp. Therefore, damage per se caused by the start of the ballast under an abnormal condition is effectively prevented and intelligent on-off control also contributes to the popularization and application of the low frequency electrodeless lamp.

Description

technical field [0001] The invention relates to a starting protection and intelligent control interface circuit of a low-frequency electrodeless lamp. In particular, the invention relates to an electrodeless lamp starting protection and intelligent control interface circuit for a low-frequency electromagnetic induction electrodeless lamp ballast. Background technique [0002] The electromagnetic induction electrodeless lamp is a new generation of energy-saving lamp with high light efficiency and long life. Its working principle is: first convert the mains electricity into direct current, and then convert it into high-frequency electric energy. The high-frequency electric energy generates a strong magnetic field through the induction coil (coupler) in the center of the bulb. Gas avalanche ionization forms plasma, and the excited mercury atoms in the plasma radiate 254nm ultraviolet rays during the process of returning to the ground state. The fluorescent powder on the inner ...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a low-frequency electrodeless lamp starting protection and intelligent control interface circuit, which is used to protect and only control the ballast of the low-frequency electrodeless lamp, so as to solve the problem that the current low-frequency electrodeless lamp ballast does not have open-circuit start-up protection, Broken lamp start-up protection and intelligent control, which can easily lead to damage to the ballast itself and are not conducive to the promotion and application of low-frequency electrodeless lamps

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