Method of reducing RMS load voltage in a lamp using pulse...

Details Method of reducing RMS load voltage in a lamp using pulse... Method of reducing RMS load voltage in a lamp using pulse...

2007-11-06

2007-11-06

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

C315S291000, C315S360000

Reexamination Certificate

active

11051927

ABSTRACT:
A method of converting a line voltage to an RMS load voltage in a lamp includes modulating a load voltage with a pulse width modulation circuit that is entirely within the lamp and provides an RMS load voltage to a light emitting element of the lamp. Conduction is triggered in the pulse width modulation circuit independently of a line voltage magnitude with a time-based signal source that defines a duty cycle of the pulse width modulation circuit suitable for the RMS load voltage.

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