KR970011875A - Signal line short circuit detection circuit - Google Patents
Signal line short circuit detection circuit Download PDFInfo
- Publication number
- KR970011875A KR970011875A KR1019950027967A KR19950027967A KR970011875A KR 970011875 A KR970011875 A KR 970011875A KR 1019950027967 A KR1019950027967 A KR 1019950027967A KR 19950027967 A KR19950027967 A KR 19950027967A KR 970011875 A KR970011875 A KR 970011875A
- Authority
- KR
- South Korea
- Prior art keywords
- line short
- signal line
- short circuit
- transistors
- bases
- Prior art date
Links
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
이 발명은 각 라인들의 전원단(Vcc)에 접속된 부하저항들과, 상기 부하저항들에 달링턴 접속된 제1 및 제2스위칭 트랜지스터와, 상기 스위칭 트랜지스터들의 콜렉터 및 베이스에 달링턴 접속된 제3 및 제4스위칭 트랜지스터들과, 상기 제1 내지 제4트랜지스터들의 베이스에 접속된 전압 조정용 저항들로 구성되어 선로의 단락시보호회로를 동작상태를 감지하여 이에 대처할 수 있도록 한 신호라인 단락 감지회로에 관한 것이다.The present invention provides load resistors connected to a power supply terminal Vcc of each line, first and second switching transistors Darlington connected to the load resistors, third and third Darlington connected collectors and bases of the switching transistors. A signal line short circuit detecting circuit comprising a fourth switching transistor and a voltage adjusting resistor connected to the bases of the first through fourth transistors to detect an operation state of a line short circuit protection circuit and to cope with it. will be.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 이 발명에 따른 신호라인 단락 감지회로의 일실시예를 나타낸 회로도, 제2도는 제1도의 동작 모드에 따른 도표이다.FIG. 1 is a circuit diagram showing an embodiment of a signal line short circuit detecting circuit according to the present invention, and FIG. 2 is a diagram according to the operation mode of FIG.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950027967A KR0183496B1 (en) | 1995-08-31 | 1995-08-31 | Signal line short sensing circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950027967A KR0183496B1 (en) | 1995-08-31 | 1995-08-31 | Signal line short sensing circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970011875A true KR970011875A (en) | 1997-03-27 |
KR0183496B1 KR0183496B1 (en) | 1999-04-15 |
Family
ID=19425423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950027967A KR0183496B1 (en) | 1995-08-31 | 1995-08-31 | Signal line short sensing circuit |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0183496B1 (en) |
-
1995
- 1995-08-31 KR KR1019950027967A patent/KR0183496B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0183496B1 (en) | 1999-04-15 |
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Legal Events
Date | Code | Title | Description |
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
LAPS | Lapse due to unpaid annual fee |