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 7026590 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 11, 2006

Filed:

Jan. 05, 2004
Applicants:

Ji-young Lee, Gyeonggi-Do, KR;

Yong-seog Jeon, Gyeonggi-Do, KR;

Hyun-jung Kim, Seoul, KR;

Joon-sik Choi, Seoul, KR;

Yun-chul Jung, Gyeonggi-Do, KR;

Byeong-ju Park, Seoul, KR;

Inventors:

Ji-Young Lee, Gyeonggi-Do, KR;

Yong-Seog Jeon, Gyeonggi-Do, KR;

Hyun-Jung Kim, Seoul, KR;

Joon-Sik Choi, Seoul, KR;

Yun-Chul Jung, Gyeonggi-Do, KR;

Byeong-Ju Park, Seoul, KR;

Assignee:

LG Electronics Inc., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 6/66 (2006.01); H01J 25/50 (2006.01);
U.S. Cl.
CPC ...
Abstract

A low-output microwave lighting system includes: a rectifier for rectifying general AC power inputted through a power source unit and outputting a DC voltage; a power factor compensator for compensating a power factor of the DC voltage inputted through the rectifier; and an inverter circuit unit for receiving the power factor-compensated DC voltage and outputting an AC voltage through frequency varying. 120 Hz of ripple generated at a low output can be reduce, and it is driven at a frequency of 20 KHz or higher, so that a flicker phenomenon does not occur and a volume and weight in facility can be reduced.


Find Patent Forward Citations

Lee, Ji-Young. (2006). Low-output microwave, lighting system and flicker removing method using the same (U.S. Patent No. 7026590). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7026590

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