Title:
CIRCUITS FOR PHASE-CUT ANALOG DIMMING OF SOLID STATE LIGHT SOURCES
Document Type and Number:
WIPO Patent Application WO/2015/160680
Kind Code:
A3
Abstract:
Circuits to provide phase-cut analog dimming of solid state light sources are presented. Each circuit comprises an anchoring circuit to communicate with a dimming controller circuit, the anchoring circuit having a proportional direct current (DC) voltage input, a biasing voltage input, a connection to a ground reference, and an output in communication with a dimming controller circuit. The anchoring circuit provides a reference voltage to permit phase cut dimming to be operable at a plurality of line voltages giving universal input capability.
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| JPS5818719 | PHASE CONTROL/ADJUSTING TYPE POWER SUPPLY CIRCUIT |
| WO/1998/056101 | LOW VOLTAGE ILLUMINATION SYSTEM |
Inventors:
BECERRA CHAIM (US)
ANTONY BIJU (US)
GULERIA ASHWANI (US)
ANTONY BIJU (US)
GULERIA ASHWANI (US)
Application Number:
PCT/US2015/025508
Publication Date:
December 10, 2015
Filing Date:
April 13, 2015
Export Citation:
Assignee:
OSRAM SYLVANIA INC (US)
International Classes:
H05B39/04
Domestic Patent References:
| WO2011021120A2 | 2011-02-24 | |||
| WO2006120641A2 | 2006-11-16 |
Foreign References:
| EP2575412A1 | 2013-04-03 | |||
| US20050122055A1 | 2005-06-09 | |||
| US20060043907A1 | 2006-03-02 |
Attorney, Agent or Firm:
MONTANA, Shaun P. (Danvers, Massachusetts, US)
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