公开(公告)号：US09178462B2

公开(公告)日：2015-11-03

申请号：US14087237

申请日：2013-11-22

Applicant: Renesas Electronics Corporation

Inventor： Minoru Kurosawa ,  Kenji Yoshida ,  Osamu Yamashita

IPC: G05B23/02 ,  H02P25/02

CPC classification number: H02P25/028 ,  H02P25/034

Abstract: 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.

Abstract translation: 一种电机驱动器控制器，包括差分控制部分; 驱动器输出部分; 驱动电流检测放大器; 和负载短路检测电路。 电动机和感测电阻器串联耦合并耦合到驱动器输出部分的输出端子。 差分控制部分根据驱动电流指令值和驱动电流检测信号产生驱动电压指令信号。 响应于驱动电压指令信号，驱动器输出部驱动电动机和感测电阻，并且驱动电流检测放大器响应于感测电阻器的驱动电流产生馈送到差分控制部分的信号。 负载短路检测电路检测由电动机的两端之间的短路状态引起的异常振荡波形信号。

公开(公告)号：US09667142B2

公开(公告)日：2017-05-30

申请号：US14030055

申请日：2013-09-18

Applicant: Renesas Electronics Corporation

Inventor： Hiroshi Kuroiwa ,  Osamu Yamashita ,  Masahiro Ishihara ,  Minoru Kurosawa

IPC: G05F1/00 ,  H02M3/157 ,  H02M3/158 ,  H02M1/00

CPC classification number: H02M3/157 ,  H02M3/158 ,  H02M2001/009

Abstract: A power supply device is responsive to load changes. The power supply device includes a switch control circuit, a charge control circuit, and a discharge control circuit. The switch control circuit controls switches so that electrical power is charged into an inductor, discharged from the inductor, and distributed to first and second capacitors in a time-division manner based on a switching cycle. The charge control circuit controls the amount of electrical power to be charged into the inductor based on a first amount of error between a first output power supply voltage and its target value and a second amount of error between a second output power supply voltage and its target value. The discharge control circuit controls a distribution ratio at which the electrical power discharged from the inductor is distributed to the first and second capacitors based on the ratio between the first and second amounts of error.