Sughrue Mion, PLLC
Motor drive controller and method for operating the same
A motor driver controller including a difference control section; a driver output section; a drive current detection amplifier; and a load short-circuit detection circuit. A motor and sensing resistor is coupled in series and coupled to an output terminal of the driver output section. The difference control section generates a drive voltage command signal in response to a drive current command value and a drive current detection signal. The driver output section drives the motor and sensing resistor, in response to the drive voltage command signal, and a drive current detection amplifier generates a signal fed to the difference control section, in response to a drive current of the sensing resistor. The load short-circuit detection circuit detects an abnormal oscillation waveform signal caused by a short-circuit state between the both ends of the motor.
Renesas Electronics Corporation
H H
H02P H02P
inventional inventional
Kenji Osamu Minoru
Yoshida Yamashita Kurosawa