Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Akihiro Ochiai

Masahiko Morisaki

Yuichi Tanabe

Masahiro Yasohara

Yasushi Kato

A motor drive circuit includes; a rotor position detector that detects a position of a rotor and outputs a rotor position detection signal; a rotor position signal generator that generates signals P, P, P, P, P, and Pas a rotor position signal based on the rotor position detection signal output from the rotor position detector; a rotation direction recognition unit that recognizes a rotation direction of the rotor each time one of signals P, P, P, P, P, and Pis input and replaces the rotor position signal with a corrected rotor position signal; and a winding current output unit that outputs a current to a winding based on the corrected rotor position signal.

Motor drive circuit, brushless motor drive device provided with motor drive circuit, and motor control method

Motor

Growing community of inventors

Osaka, Japan

Akihiro Ochiai