KR970011875A - Signal line short circuit detection circuit - Google Patents

Signal line short circuit detection circuit Download PDF

Info

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
Application number
KR1019950027967A
Other languages
Korean (ko)
Other versions
KR0183496B1 (en
Inventor
최덕신
Original Assignee
이형도
삼성전기 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이형도, 삼성전기 주식회사 filed Critical 이형도
Priority to KR1019950027967A priority Critical patent/KR0183496B1/en
Publication of KR970011875A publication Critical patent/KR970011875A/en
Application granted granted Critical
Publication of KR0183496B1 publication Critical patent/KR0183496B1/en

Links

Landscapes

  • 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

신호라인 단락 감지회로Signal line short circuit detection circuit

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)

각 라인들의 전원단(Vcc)에 접속된 부하저항들과, 상기 부하저항들에 달링턴 접속된 제1 및 제2스위칭 트랜지스터와, 상기 스위칭 트랜지스터들의 클렉터 및 베이스에 달링턴 접속된 제3 및 제3스위칭 트랜지스터들과, 상기 제1 내지 제4트랜지스터들의 베이스에 접속된 전압 조정용 저항들로 구성됨을 특징으로 하는 신호라인 단락 감지회로.Load resistors connected to the power supply terminals Vcc of the lines, first and second switching transistors Darlington connected to the load resistors, and third and third Darlington connected to the selector and base of the switching transistors. And a switching transistor and voltage adjusting resistors connected to the bases of the first to fourth transistors. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950027967A 1995-08-31 1995-08-31 Signal line short sensing circuit KR0183496B1 (en)

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)

Also Published As

Publication number Publication date
KR0183496B1 (en) 1999-04-15

Similar Documents

Publication Publication Date Title
KR910018890A (en) Integrated terminal circuit and its providing method
KR900015142A (en) Semiconductor integrated circuit device
KR890012385A (en) Semiconductor integrated circuit
KR910012732A (en) Fault detection device
KR880013285A (en) Integrated circuit protection against overload and short circuit current
KR920020521A (en) Semiconductor integrated circuit
KR970072610A (en) Bidirectional voltage converter
KR890003132A (en) Temperature Stable RF Detector
KR910013720A (en) Overvoltage Protection Circuit
KR900014182A (en) Fault detection device
KR950023885A (en) A voltage selector that receives a plurality of inputs and selectively outputs one of them
KR910017734A (en) Electronic device
KR920010533A (en) LCD driving device
KR900005446A (en) Semiconductor devices
KR970049834A (en) Presence detection system for integrated circuits on electrically conductive objects, especially on chip cards
KR970011875A (en) Signal line short circuit detection circuit
KR940020669A (en) Bias Circuit (BIAS CIRCUIT)
KR880005743A (en) Comparator
KR930003543A (en) Current mirror circuit
KR960027331A (en) Buffer circuit and bias circuit
KR880004398A (en) Comparison circuit
KR940009691A (en) Current detection circuit
KR920009033A (en) Discrete current source whose output decreases with increasing control voltage
KR890012444A (en) Amplifier
KR890013889A (en) Startup Circuit of Initial Voltage Variable Ringer Line Integrated Circuits

Legal Events

Date Code Title Description
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