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:
Sep. 11, 2012
Filed:
Apr. 15, 2010
Takayuki Kitagawa, Toyohashi, JP;
Takayuki Kitagawa, Toyohashi, JP;
Asmo Co., Ltd., Shizuoka-pref., JP;
Abstract
A slope counter starts countdown at timing of changing an output voltage of an FET to zero. A controller executes a nonsymmetrical energization control operation to control a PWM generator such that the PWM generator generates a PWM signal based on a count value of the slope counter and outputs the generated PWM signal to the FET. The countdown of the slope counter is terminated when a predetermined time period elapses or when a time period corresponding to an electrical angle of 40 degrees elapses before the elapsing of the predetermined period. Also, at this time, the controller terminates the nonsymmetrical energization control operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile