Title:
CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/126005
Kind Code:
A1
Abstract:
Provided is a control device that appropriately performs suppression of quantization noise for a conversion unit that converts an analog signal into a digital signal and stabilization of a system loop. An ADC (2) constitutes a feedback loop and converts an analog signal output from a sensor (1) into a digital signal. A differentiator (12) constitutes the feedback loop and differentiates the signal output from the ADC (2). A comparator (13) compares a signal within the feedback loop with a reference value. On the basis of a comparison result of the comparator (13), a zero point control unit (14) controls a zero point of a transfer function for the differentiator (12).
Inventors:
YAMAMOTO AKIO (JP)
LI WEN (JP)
KANAI HISAAKI (JP)
LI WEN (JP)
KANAI HISAAKI (JP)
Application Number:
PCT/JP2016/051251
Publication Date:
July 27, 2017
Filing Date:
January 18, 2016
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G05B13/02; G01P15/13
Foreign References:
| JPH11305805A | 1999-11-05 | |||
| JP2011166892A | 2011-08-25 | |||
| JP2009205762A | 2009-09-10 |
Attorney, Agent or Firm:
SHOYO INTELLECTUAL PROPERTY FIRM (JP)
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