Title:
DRIVE CONTROL CIRCUIT OF ELECTRIC MOTOR AND DEVICE INCLUDING THE SAME
Document Type and Number:
Japanese Patent JP2010246173
Kind Code:
A
Abstract:
To provide a technique for improving recovery efficiency of regenerative power from electric motors.
A drive control circuit 200 of electric motors is provided with: H bridge circuits 400A, 400B; a regeneration circuit 500; a control signal generation circuit 300; and first reverse blocking diodes 210A, 210B provided between a power input terminal of the H bridge circuit and a power terminal of a power circuit. The regeneration circuit 500 is connected to a cathode terminal of the first reverse blocking diodes 210A, 210B.
COPYRIGHT: (C)2011,JPO&INPIT
Inventors:
NAKAMURA KAZUYOSHI
TAKEUCHI KESATOSHI
TAKEUCHI KESATOSHI
Application Number:
JP2009088599A
Publication Date:
October 28, 2010
Filing Date:
April 01, 2009
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
H02P6/08; H02P6/06; H02P8/12
Attorney, Agent or Firm:
Meisei International Patent Office