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:
Jan. 18, 2005
Filed:
Jul. 25, 2003
Kazumasa Kodama, Toyota, JP;
Yutaka Mori, Toyohashi, JP;
Junji Kawamuro, Susono, JP;
Takahiro Kojo, Susono, JP;
Masatoshi Nakatsu, Susono, JP;
Kazumasa Kodama, Toyota, JP;
Yutaka Mori, Toyohashi, JP;
Junji Kawamuro, Susono, JP;
Takahiro Kojo, Susono, JP;
Masatoshi Nakatsu, Susono, JP;
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Abstract
A PWM control includes a first PWM control and a second PWM control. In the first PWM control, a first power supply terminal of a first coil is kept non-switched under being connected to a first pole of a direct current power source, and a second power supply terminal of a second coil is capable of being switched under being connected to a second pole of the direct current power source. The second PWM control is performed by switching a first connected condition and a second connected condition by turns. The first connected condition is established with the first power supply terminal connected to the first pole and the second power supply terminal connected to the second pole. The second connected condition is established with the first power supply terminal being connected to the second pole and the second power supply terminal being connected to the first pole.