Title:
IC FOR MOTOR CURRENT DETECTION AND CURRENT DETECTOR OR MOTOR CONTROL DEVICE USING THE SAME
Document Type and Number:
Japanese Patent JP2011252706
Kind Code:
A
Abstract:
To achieve reductions in size, number of component parts, packaging area and cost of a current detection circuit for controlling motors.
An integrated circuit (IC) is internally provided with a differential amplifier circuit provided with a pair of plus and minus input terminals and an output terminal, wherein the input terminals of the differential amplifier circuit can accept inputs of negative voltages and have a function to cut off the circuit when an excessively high voltage is inputted. The integration of the circuit achieves reductions in size and cost of a current detection circuit and reductions in size and cost of a motor control circuit, a motor control device or various devices using a motor control device can be realized.
Inventors:
KAMEDA KOJI
SHIBA FUMIKAZU
MORI KOICHI
SHIBA FUMIKAZU
MORI KOICHI
Application Number:
JP2010113886A
Publication Date:
December 15, 2011
Filing Date:
May 18, 2010
Export Citation:
Assignee:
PANASONIC CORP
International Classes:
G01R19/00; H02P29/00
Domestic Patent References:
| JP2009257811A | 2009-11-05 | |||
| JP2009081930A | 2009-04-16 | |||
| JP2007121052A | 2007-05-17 | |||
| JP2006064596A | 2006-03-09 | |||
| JPH09322388A | 1997-12-12 |
Attorney, Agent or Firm:
Hiroki Naito
Daisuke Nagano
Kentaro Fujii
Daisuke Nagano
Kentaro Fujii
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