Inverter circuit for surface light source system

Details Inverter circuit for surface light source system Inverter circuit for surface light source system

2006-11-28

2006-11-28

Lee, Wilson (Department: 2163)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

C315S276000

Reexamination Certificate

active

07141935

ABSTRACT:
An inverter circuit for discharge lamps, in which transformers are separated into multiple small or middle-sized transformers connected to one another to provide a high-power transformer equivalent to a large transformer. The inverter circuit includes a plurality of leakage flux step-up transformers each having a magnetically continuous central core, a primary winding, and a distributed-constant secondary winding, wherein a part of a resonance circuit is formed among a leakage inductance produced on the secondary winding side, a distributed capacitance of the secondary winding and a parasitic capacitance produced around a discharge lamp close to a proximity conductor, and as the resonance circuit resonates, the secondary winding has a close coupling portion in a vicinity of the primary winding which has a magnetic phase close to that of the primary winding and magnetically close couples with the primary winding.

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