Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 26, 2008
Patent Application Number
11049034
Date Filed
January 18, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
Methods and circuits for distributing power to suspended-particle-device (SPD) film products including SPD windows, SPD shades, and other SPD products, which are referred to generally as SPD loads. A driving voltage derived from a primary power source is provided to an SPD load by backbone wiring which carries a low AC or DC voltage derived from the primary power source, and a conversion stage which converts the low voltage to an AC driving voltage which is then supplied to the SPD load.
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