Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Impedance or current regulator in the supply circuit
Reexamination Certificate
2006-10-13
2010-06-15
Patel, Rajnikant B (Department: 2838)
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Impedance or current regulator in the supply circuit
C315S307000
Reexamination Certificate
active
07737642
ABSTRACT:
A DC/AC inverter provided for transforming a DC voltage source into an AC power source, wherein the AC signal is used for driving a fluorescent lamp. The inverter comprises a half-bridge switch circuitry electrically connected to the DC voltage source, for outputting an AC signal, a resonant tank electrically connected between the half-bridge switch circuitry and the fluorescent lamp, for stepping up and filtering the AC signal into a high-voltage AC power source which is supplied to a load, and a controller feeding back an output of the fluorescent lamp, providing a pulse width modulation signal for turning on and off the half-bridge switch circuitry, such that the fluorescent lamp can operate consistently and provide a consistent brightness.
REFERENCES:
patent: 5677602 (1997-10-01), Paul
patent: 6259615 (2001-07-01), Lin
patent: 6750842 (2004-06-01), Yu
patent: 1667458 (2005-09-01), None
patent: 1270839 (2007-01-01), None
Huang Shih-chung
Hung Chien-pang
Lee Chih-shun
Yu Chung-che
Beyond Innovation Technology Co., Ltd.
Hsu Winston
Patel Rajnikant B
LandOfFree
DC/AC inverter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with DC/AC inverter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DC/AC inverter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4244075