Dimmer circuit with improved ripple control

Details Dimmer circuit with improved ripple control Dimmer circuit with improved ripple control

2003-03-25

2008-03-04

Philogene, Haissa (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C315S194000, C315S360000, C315SDIG002, C323S237000, C323S235000, C323S243000, C323S323000

Reexamination Certificate

active

07339331

ABSTRACT:
A dimmer circuit arrangement is disclosed including a second control circuit for controlling the operation of a triac for delivering current to a load, and a first control circuit for controlling the operation of an IGBT power semiconductor switch for controlling the rate of rise of load voltage. The first control circuit also controls the operation of the second control circuit.

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