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:
May. 23, 2006
Filed:
Jul. 29, 2004
Juichi Uno, Gunma, JP;
Kazuyoshi Ishikawa, Gunma, JP;
Juichi Uno, Gunma, JP;
Kazuyoshi Ishikawa, Gunma, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A motor drive circuit which have a first source-side transistor and a first sink-side transistor connected in series; a second source-side transistor and a second sink-side transistor connected in series; and a control circuit supplying the first source-side transistor, the first sink-side transistor, the second source-side transistor, and the second sink-side transistor with control signals for supplying a current in one direction or the opposite direction to a coil connected between a connection point of the first source-side transistor and the first sink-side transistor and a connection point of the second source-side transistor and the second sink-side transistor based on a plurality of input signals that complementarily change at a predetermined frequency. The control circuit, during each time period between timings of complementary switching of the plurality of input signals, outputs control signals for turning on and off the transistors in a predetermined manner.