Generation from phase cut dimmer output with fast response to changes in dimmer position

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United States of America Patent

PATENT NO 9137880
APP PUB NO 20120086354A1
SERIAL NO

13267819

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Abstract

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A circuit for a dimmer system is disclosed, in which a phase-cut dimmer output signal is converted to a dimming control level signal. The phase-cut dimmer output signal is used to generated a pulse modulated signal indicative of the duty cycle of the phase cut dimmer output signal, and the pulse modulated signal is directly converted to a piece-wise linear dimming control level signal. By directly converting the pulse modulated signal to a piece-wise linear dimming control level signal, no further processing is necessary to produce a dimming signal which closely resembles the ideal logarithmic response of the human eye.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SILERGY CORP.GRAND CAYMAN CAYMAN ISLANDS, GB26

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Daniel, Bobby Jacob Eindhoven, NL 5 12
Langeslag, Hinderikus Maria Wilhelmus Wijchen, NL 1 0

Cited Art Landscape

Patent Info (Count) # Cites Year
 
LEMNIS LIGHTING IP GMBH (1)
* 2010/0090,618 DIMMABLE LIGHTING SYSTEM 34 2009
 
NATIONAL SEMICONDUCTOR CORPORATION (1)
* 2011/0084,622 DIMMER DECODER WITH LOW DUTY CYCLE HANDLING FOR USE WITH LED DRIVERS 32 2010
 
MICROSEMI CORPORATION (1)
* 2009/0243,582 PHASE-CUT DIMMING CIRCUIT 22 2009
 
PHILIPS LIGHTING HOLDING B.V. (1)
* 7667408 Lighting system with lighting dimmer output mapping 40 2007
* Cited By Examiner

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