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:
Feb. 12, 2008
Filed:
Feb. 11, 2005
Takeshi Uematsu, Tokyo, JP;
Takeshi Uematsu, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
The present invention is directed to a power supply unit that provides large power supply to the load. The voltage detectorgenerates a voltage detection signal by detecting the voltage generated at the output terminalsThe current detectorgenerates a current detection signal by detecting the current that runs through the transformerThe control circuituses the voltage detection signal and the current detection signal and thereby controls, in at least one of the first and second switching elements SWSWthe timing with which the switching element is turned ON and the length of time that the switching element remains ON, such that the transformer current flows in a continuous mode.