Title:
THERMISTOR DRIVE CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2018/087991
Kind Code:
A1
Abstract:
The present invention is configured such that current correction resistors (Rd1, Rd2) can be selectively connected between a power source and a ground. When the connection state of drive resistors (R1_LT, R1_RT, R1_HT) is switched so as to increase the resist value in accordance with the terminal voltage of a thermistor (TH), a control unit (4) additionally switches the connection state of the current correction resistors (Rd1, Rd2) so as to reduce the resist value, thereby reducing fluctuations in the power source current before and after the connection of the plurality of drive resistors is switched.
Inventors:
HIKOSAKA SHOGO (JP)
Application Number:
PCT/JP2017/030925
Publication Date:
May 17, 2018
Filing Date:
August 29, 2017
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01K7/25
Foreign References:
| JP2006242865A | 2006-09-14 | |||
| JP2007183113A | 2007-07-19 | |||
| JPH07272155A | 1995-10-20 |
Attorney, Agent or Firm:
SATO INTERNATIONAL PATENT FIRM (JP)
Download PDF:
Previous Patent: DIAMINE COMPOUND, HEAT-RESISTANT RESIN USING SAME, AND RESIN COMPOSITION
Next Patent: VOLTAGE MEASURING SYSTEM
Next Patent: VOLTAGE MEASURING SYSTEM