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:
Mar. 17, 2009
Filed:
Oct. 16, 2007
Yasuto Watanabe, Wako, JP;
Mitsuaki Hirakawa, Wako, JP;
Yasuto Watanabe, Wako, JP;
Mitsuaki Hirakawa, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A boost DC/DC includes an inductor connected at one end to the positive-pole terminal of a low-voltage-side port, a transformer of a magnetic-field cancellation type including a primary winding and a secondary winding interconnected in an oppositely-wound configuration, a common terminal of the primary winding and the secondary winding being connected to another end of the inductor. A switching element controls an energizing current of the primary winding flowing to a common reference terminal, and another switching element controls an energizing current of the secondary winding flowing to the common reference terminal. A diode allows current to flow in only one direction from the primary winding to the positive-pole terminal of a high-voltage-side port, and another diode allows current to flow in only one direction from the secondary winding to the positive-pole terminal of the high-voltage-side port.