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:
Jul. 12, 2005
Filed:
Jan. 06, 2004
Koji Takada, Musashino, JP;
Koji Takada, Musashino, JP;
Yokogawa Electric Corporation, Tokyo, JP;
Abstract
A low-cost, easily-miniaturized switching power supply restrains voltage stress on first and second main switches. The switching power supply has small loss and low noise, enables setting of duty factors over a broad range, and has reduced thickness. The first main switch has one end connected with a negative electrode of an input voltage, and the second main switch has one end connected with a positive electrode of the input voltage. A first magnetic element is connected to the first main switch, and a second magnetic element is connected to the second main switch and the first magnetic element. The switching power supply has: a first diode connected to the first main switch, the first magnetic element, and the second magnetic element; a second diode connected to the first diode, the second main switch, and the second magnetic element; and an auxiliary switch between the diodes.