Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Andrea Ongaro0
Giorgio Spiazzi0
Paolo Tomasin0
Simone Buso0
Date of Patent
June 19, 2007
0Patent Application Number
109131410
Date Filed
August 6, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A power supply system for liquid crystal monitors includes a first DC/AC converter (FBS, HBS) operating at predetermined frequency and duty-cycles and being fed by a second DC/DC converter (FC) which regulates the circuit voltage. The feeding system can feed all the fluorescent lamps (L, L1, LN) in the monitor through a bus connection which transmits the output sinusoidal voltage (SG1, SG2, SG3) from the first DC/AC converter (FBS, HBS) to the primary windings of a plurality of parallel connected piezoelectric transformers (PT, PT1, PT2, PTN, PT2N) which are connected with the fluorescent lamps (L, L1, LN).
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