Title:
CURRENT DETECTOR, CURRENT DETECTION METHOD, AND PROGRAM
Document Type and Number:
Japanese Patent JP2014178290
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a current detector, a current detection method and a program, capable of reducing the number of amplifiers without lowering accuracy of a current value that is detected while securing a detectable range of the current value.SOLUTION: When an absolute value of a current I detected is within a range of a first value, a correction value is obtained by subtracting a second current value of a current I flowing through a shunt resistor 101 based on a first output voltage output from a first amplifier 107 from a first current value of a current flowing through the resistor based on a second output voltage output from a second amplifier 108. When the absolute value of the current I detected is larger than the first value and less than the second value, the value obtained by subtracting the correction value from the second current value is calculated as the current value of the current I flowing through the shunt resistor 101.
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Inventors:
YAMAMOTO NAOHIRO
Application Number:
JP2013054179A
Publication Date:
September 25, 2014
Filing Date:
March 15, 2013
Export Citation:
Assignee:
RICOH CO LTD
International Classes:
G01R19/00
Attorney, Agent or Firm:
Hiroaki Sakai
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