Display device and driving device of light source for...

Details Display device and driving device of light source for... Display device and driving device of light source for...

2005-05-10

2008-08-12

Vu, David H. (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

C315S224000, C315S307000

Reexamination Certificate

active

07411355

ABSTRACT:
A driving device of a light source includes an arc sensing unit and an inverter. The light source includes a lamp having a first terminal and a second terminal. The arc sensing unit extracts a high frequency component from a voltage applied to the light source and generates an arc sensing signal in response to the high frequency component. The inverter controls the light source in response to the sensing signal.

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