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:
Aug. 31, 1999
Filed:
Sep. 16, 1998
Yasuhiro Yamamoto, Aichi, JP;
Yoshihiro Murai, Gifu, JP;
Kabushiki Kaisha Meidensha, Tokyo, JP;
Abstract
A PWM power converter includes a first switching branch of a first switching device and a first inductor between a positive source terminal and a load terminal and a second switching branch of a second inductor and a second switching device between the load terminal and a negative source terminal. To reduce noise and loss, the power converter is further provided with a series combination of third and fourth capacitors connected between the positive and negative source terminals, a series combination of first diode and first capacitor connected between a first junction point between the third and fourth capacitors and a second junction point between the first switching device and the first inductor, a series combination of second capacitor and second diode connected between a third junction point between the second inductor and the second switching device and a fourth junction point between the third and fourth capacitors, a series combination of third diode and third inductor connected between a fifth junction point between the first diode and the first capacitor and the positive source terminal, and a series combination of fourth inductor and fourth diode connected between the negative source terminal and a sixth junction point between the second capacitor and the second diode.