Dimming circuit for electromagnetic induction lamp

An electromagnetic induction lamp and dimming circuit technology, applied in the field of dimming circuit, can solve the problems of no dimming, long switching time, high temperature of MOS tube, etc.
CN1558707AInactive Publication Date: 2004-12-29SHANGHAI HONGYUAN LIGHTING & ELECTRICAL EQUIP
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SHANGHAI HONGYUAN LIGHTING & ELECTRICAL EQUIP
Publication Date
2004-12-29
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a light modulation circuit of an electromagnetic induction lamp which comprises a closed-loop light modulation control signal device, a lamp power feedback compensation device, a resistance-capacitance oscillation timer, a lamp current sampling signalizer and a lamp voltage sampling signalizer. The invention can realize the operation status monitoring and real time adjustment.
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Description

technical field

[0001] The invention relates to an electromagnetic induction lamp circuit, in particular to a dimming circuit used in an electromagnetic induction lamp circuit. Background technique

[0002] Electromagnetic induction lamps are a new generation of energy-saving products with no filament, high luminous efficiency, long life, and high power factor. They can be widely used in homes, factories, offices, roads, engineering construction sites, especially places where lamp tubes are not suitable for replacement. Since the electromagnetic induction lamp is started and ignited without poles, there is no phenomenon that the whole lamp will be scrapped due to the damage of the filament or the exhaustion of the electron powder emission and the blackening of the lamp tube due to the sputtering of the electron powder, and the life of the whole lamp is greatly extended. And the working frequency exceeds 200KHz, which can eliminate the stroboscopic phenomenon. However, the c...

Claims

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