Title:
SIGNAL OUTPUT DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/111673
Kind Code:
A1
Abstract:
In the present invention an output terminal (23) of a signal output device (20) is connected via a branch path (33) to a voltage division point (D) provided in the middle of main trunk paths (31, 32) connecting a power supply terminal (21) and a ground terminal (22), and transmits an output signal based on the voltage of the voltage division point (D) to the outside. A signal generation circuit (60) adjusts the voltage of the voltage division point (D) and generates the output signal. A short-circuit detection circuit (50) detects a short-circuit between the output terminal (23) and the other terminals when a current flowing in the branch path (33) is greater than a prescribed short-circuit detection threshold value. When a short-circuit is detected by the short-circuit detection circuit (50) switching circuits (61, 62) switch the conduction capacity or the configuration of the signal generation circuit (60), thereby limiting the short-circuit current flowing in the branch path (33). The short-circuit current is set to a value equal to or greater than the short-circuit detection threshold value and less than an upper limit current value based on the supply capacity of a direct-current power supply.
Inventors:
ITO TAKASUKE (JP)
KONO YOSHIYUKI (JP)
TAKIGUCHI TOMOYUKI (JP)
KONO YOSHIYUKI (JP)
TAKIGUCHI TOMOYUKI (JP)
Application Number:
PCT/JP2018/042482
Publication Date:
June 13, 2019
Filing Date:
November 16, 2018
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G08C25/00; B60R16/02
Foreign References:
| JP2014087095A | 2014-05-12 | |||
| JP2014087093A | 2014-05-12 |
Attorney, Agent or Firm:
HATTORI Masaki (JP)
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