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.:
Date of Patent:
Sep. 02, 2014
Filed:
Jul. 08, 2009
Applicant:
Takashi Ohsawa, Tokyo, JP;
Inventor:
Takashi Ohsawa, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A discharge lamp ballast apparatus includes an F/Ffor maintaining the on or off operation of a high-side switching device Qof an inverter in synchronization with a rising edge and falling edge of a main signal, and a return unitfor generating a signal for returning, even if the output Q of the F/F is inverted owing an unforeseen situation, the output to the polarity to be output normally; and returns the output of the F/Fto the first polarity to be output normally using the return signal.