Discharge lamp lighting device and projector

Details Discharge lamp lighting device and projector Discharge lamp lighting device and projector

2011-04-12

2011-04-12

Vu, David Hung (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Impedance or current regulator in the supply circuit

C315S307000, C315S308000

Reexamination Certificate

active

07923940

ABSTRACT:
A method of generating a driving current supplied to a high pressure discharge lamp, including outputting a DC current, converting the DC current to an AC current having a predetermined frequency, generating a reference pulse which is asynchronous with the AC current, and superposing the first pulse and the second pulse to the AC current for producing the driving current.

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