Title:
断線検出装置
Document Type and Number:
Japanese Patent JP3997736
Kind Code:
B2
Abstract:
A detection part (B), of a disconnection detection apparatus ( 1 A), detects an open destruction of a detection resistor. An emitter of a transistor (Q 5 ) is connected to an upstream end of a detection resistor (R 1 ) through a diode (connected forward) (D 2 ). A base of the transistor (Q 5 ) is connected to a downstream end of the detection resistor (R 1 ) through a resistor (R 8 ). A collector of the transistor (Q 5 ) is connected to an upstream side of a resistor (R 4 ) of a determination part ( 3 ). In the detection part (B), the transistor (Q 5 ) is turned on and off according to the difference in the potential between both ends of the detection resistor (R 1 ). In an open destruction detection state, generated when the transistor (Q 5 ) is ON, electric current supplied by the power supply 4 is fed to the determination part ( 3 ) through the transistor (Q 5 ) as a detection result indicating that an open destruction has occurred.
Inventors:
Hiroaki Masaoka
Application Number:
JP2001234790A
Publication Date:
October 24, 2007
Filing Date:
August 02, 2001
Export Citation:
Assignee:
SUMITOMO WIRING SYSTEMS,LTD.
International Classes:
B60R16/02; G01R31/02; G01R31/40
Domestic Patent References:
| JP55069065A | ||||
| JP61121291A | ||||
| JP9150669A | ||||
| JP56164400U | ||||
| JP5319171A | ||||
| JP2011432A |
Attorney, Agent or Firm:
Shigeaki Yoshida
Yoshitake Hidetoshi
Takahiro Arita
Yoshitake Hidetoshi
Takahiro Arita