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:
Jun. 15, 1993
Filed:
Jul. 15, 1992
Motoyasu Yoshino, Kyoto, JP;
Norio Fujii, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A motor control circuit, in which the motor is driven to rotate by a driving current according to a torque control signal and the motor rotation is stopped by generating a torque on the motor in the reversing direction when a stop signal for stopping the motor is received, further being provided with a level inverting circuit disposed between a torque control signal generating circuit and a drive circuit for inverting the level of the torque control signal with respect to a predetermined reference level, a level inverted torque control signal by the level inverting circuit is outputted to the drive circuit when the stop signal is received, and further provided with a reference signal generating circuit generating a reference signal corresponding to a reference rotational speed of the motor as well as generating another reference signal corresponding to a rotational speed lower than that of the reference rotational speed when the stop signal is received.