Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Periodic switch cut-out
Reexamination Certificate
2004-09-07
2008-08-26
Patel, Rajnikant B. (Department: 2838)
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Periodic switch cut-out
C315S307000, C363S098000
Reexamination Certificate
active
07417382
ABSTRACT:
A CCFL power converter circuit is provided using a high-efficiency zero-voltage-switching technique that eliminates switching losses associated with the power MOSFETs. An optimal sweeping-frequency technique is used in the CCFL ignition by accounting for the parasitic capacitance in the resonant tank circuit. Additionally, the circuit is self-learning and is adapted to determine the optimum operating frequency for the circuit with a given load. An over-voltage protection circuit can also be provided to ensure that the circuit components are protected in the case of open-lamp condition.
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Case No. C013995 JCS ADR,02Micro International Limited(Plaintiff) v.Monolithic Power Systems, Inc.(Defendant and Counterclaimant), Monolithic Power Systems' Answer to First Amended Complaint and Counterclaim, Dec. 5, 2001.
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Case Nos. CV-00-4071 CW and CV-01-3995 CW,O2Micro International Limited(Plaintiff and Counterdefendants) v.Monolithic Power Systems, Inc.(Defendant and Counterclaimant), Defendant and Counterclaimant Monolithic Power Systems, Inc.'s Responsive Claim Construction Brief, Sep. 6, 2002.
Case Nos. CV-00-4071 CW and CV-01-3995 CW,O2Micro International Limited(Plaintiff and Counterdefendants) v.Monolithic Power Systems, Inc.(Defendant and Counterclaimant), Defendant and Counterclaimant Monolithic Power Systems, Inc.'s Surreply Claim Construction Brief, Sep. 20, 2002.
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Case Nos. CV-00-4071
O2Micro International Limited
Patel Rajnikant B.
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