Title:
CURRENT CONTROL CIRCUIT AND INPUT DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/158196
Kind Code:
A1
Abstract:
This current control circuit controls drive current supplied to an inductive load and has: a first mode in which the duty of the drive current is controlled to 100% until the current value of the drive current reaches a first target current value after starting the supply of the drive current; and a second mode in which the duty of the drive current is controlled to a predetermined duty lower than 100% until the current value of the drive current reaches a second target current value higher than the first target current value after the current value of the drive current has reached the first target current value.
Inventors:
FURUKI SHIGERU (JP)
Application Number:
PCT/JP2019/048237
Publication Date:
August 06, 2020
Filing Date:
December 10, 2019
Export Citation:
Assignee:
ALPS ALPINE CO LTD (JP)
International Classes:
H02P7/29; H02P1/18
Foreign References:
| JP2008109835A | 2008-05-08 | |||
| JP2009131128A | 2009-06-11 | |||
| JP2006197669A | 2006-07-27 | |||
| JPH0270288A | 1990-03-09 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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