Title:
MOTOR CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2016052153
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a motor control device which reduces a switching noise which occurs when driving a motor, and restrains a rush current at switching on the power if a capacitor of low ESR is used.SOLUTION: A resistor having a sufficiently high resistance value in comparison with ESR of a large-capacity capacitor is inserted in series with the power. This enables the supply of a motor drive current from the large-capacity capacitor, and the reduction of a radiation noise from the power side. When the capacitance of the large-capacity capacitor becomes low, a switching element provided in parallel with the resistor is switched on, to thereby supply an electric charge from the power to the large-capacity capacitor.SELECTED DRAWING: Figure 1
Inventors:
NAGOSHI HIROTO
Application Number:
JP2014174728A
Publication Date:
April 11, 2016
Filing Date:
August 29, 2014
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD
International Classes:
H02P7/298
Attorney, Agent or Firm:
Manabu Inoue
Yuji Toda
Shigemi Iwasaki
Yuji Toda
Shigemi Iwasaki