Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Periodic switch cut-out
Reexamination Certificate
2005-12-02
2011-11-08
Owens, Douglas W (Department: 2821)
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Periodic switch cut-out
C315S224000, C315S291000
Reexamination Certificate
active
08053999
ABSTRACT:
A method and apparatus are disclosed for providing current to a load. The apparatus includes a full or half bridge switching circuit, including at least one switching element for supplying power to a load when switched on and means for switching a state of the switching element only at a time when a substantially zero voltage is applied across the switching element.
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Harvard Engineering PLC
Klarquist & Sparkman, LLP
Le Tung X
Owens Douglas W
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