The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7372213 B1

PDF
Full Text
Expired
Date of Patent:
May. 13, 2008

Filed:

Oct. 19, 2005
Applicants:

Ching Chuan Kuo, Junghe, TW;

Houng Kuo Hsu, Taoyuan, TW;

Inventors:

Ching Chuan Kuo, Junghe, TW;

Houng Kuo Hsu, Taoyuan, TW;

Assignee:

O2Micro International Limited, Georgetown Grand Cayman, KY;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 41/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method according to on embodiment may include generating AC voltage and current and a striking voltage. The method of this embodiment may also include generating striking voltage and steady-state voltage for at least two lamp loads. The method of this embodiment may also include coupling at least two lamp loads in parallel. The method of this embodiment may also include coupling current balancing circuitry to the at least two lamp loads and providing, by the current balancing circuitry simultaneous striking voltage to the at least two lamps loads. The method of this embodiment may also include balancing, by the current balancing circuitry, AC current through the at least two lamp loads. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.


Find Patent Forward Citations

Kuo, Ching. (2008). Lamp current balancing topologies (U.S. Patent No. 7372213). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7372213

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