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. 26, 2013
Filed:
Jun. 06, 2008
Yoichi Kyono, Niiza, JP;
Yoichi Kyono, Niiza, JP;
Sanken Electric Co., Ltd., Niiza-shi, JP;
Abstract
A multiple-output switching power supply unit includes: a voltage generating circuit Q, Q, Tconfigured to generate a pulse voltage by intermittently interrupting a direct current power supply; a series resonance circuit including a current resonance capacitor Cri, a primary winding Pof a transformer T, and a switching element Q, the pulse voltage generated in the voltage generating circuit being applied to the series resonance circuit; a rectifying/smoothing circuit D, Cconfigured to rectify and smooth a voltage which is generated in a secondary winding Sof the transformer, and thus to output a direct current output voltage; and a control circuitconfigured to turn on and off the switching element based on the direct current output voltage.