Title:
駆動回路、制御装置、および駆動回路の保護方法
Document Type and Number:
Japanese Patent JP6738700
Kind Code:
B2
Abstract:
A driving circuit according to an embodiment includes a driving unit, a first temperature detecting unit, an overheat protecting unit, a second temperature detecting unit, and a failure diagnosing unit. The driving unit supplies a driving current to a load based on a control signal input from a controller. The overheat protecting unit blocks supply of the driving current to the load when the level of the signal output from the first temperature detecting unit exceeds a temperature threshold. The failure diagnosing unit blocks supply of the driving current to the load and outputs a signal of a level corresponding to a temperature out of a temperature range detectable by the second temperature detecting unit to the controller when it is determined that the first temperature detecting unit breaks down.
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Inventors:
Kume Masayoshi
Motoki Komiya
Motoki Komiya
Application Number:
JP2016179946A
Publication Date:
August 12, 2020
Filing Date:
September 14, 2016
Export Citation:
Assignee:
Densoten Co., Ltd.
International Classes:
H02H5/04
Domestic Patent References:
JP7030390A | ||||
JP4271229A | ||||
JP2013233058A | ||||
JP2007252134A | ||||
JP2005345380A |
Foreign References:
US20030197993 |
Attorney, Agent or Firm:
Sakai International Patent Office