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 7919929 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 05, 2011

Filed:

Sep. 18, 2008
Applicants:

Hirofumi Honda, Gunma, JP;

Shinichi Ishida, Gunma, JP;

Tatsuya Sakurai, Gunma, JP;

Inventors:

Hirofumi Honda, Gunma, JP;

Shinichi Ishida, Gunma, JP;

Tatsuya Sakurai, Gunma, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 41/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

In one aspect, an impedance component which exhibits a high impedance in a high frequency region is arranged on a high pressure line formed on a secondary side of a transformer. The potential difference generated at both ends of the impedance component is used to detect an abnormal electrical discharge generated in the high pressure line. When the abnormal electrical discharge is detected, a switching operation is stopped by a controlling circuit whereby a protection operation is performed.


Find Patent Forward Citations

Honda, Hirofumi. (2011). Lamp driving device having impedance component detecting abnormal discharge (U.S. Patent No. 7919929). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7919929

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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