Industry Patents

Patent: 7119497

Dimmer For Resistive or Capacitive Loads

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Patent Number:	7119497
Title:	Dimmer For Resistive or Capacitive Loads
Abstract:	A power dimmer for an A.C. load comprising, between two terminals, two one-way switches connected in anti-parallel and controllable to be turned off and turned on, each switch being controlled by a driver circuit setting the turn-off times of each of the switches with respect to a reference value, each driver circuit being associated with a supply circuit comprising a voltage storage element in series with a one-way rectifying element, all in parallel with a voltage-limiting element, the two supply circuits being connected to each other by a capacitor and the respective supply voltages of the driver circuits being sampled across the respective capacitors of each supply circuit.
Country of Issue:	US
First Named Inventor:	Gonthier, Achart
Assignee:	STMicroelectronics
Continuation or Divisional of:
International Classification:	H05B 37/00
US Classification:	315/291
Issue Date:	10-10-2006
Filing Date:	09-03-2004
Application :	10/934137
Notes:
Link to Patent at freepatentsonline.com:	7119497 at Freepatentsonline
Link to World Patent Family¹:	World Patent Family at European Patent Office
Link to Google Patents¹:	7119497 at Google Patents

1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.

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