KR920009016A - 펄스 트랜스를 이용한 전류감지회로 - Google Patents

펄스 트랜스를 이용한 전류감지회로 Download PDF

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Publication number
KR920009016A
KR920009016A KR1019900017541A KR900017541A KR920009016A KR 920009016 A KR920009016 A KR 920009016A KR 1019900017541 A KR1019900017541 A KR 1019900017541A KR 900017541 A KR900017541 A KR 900017541A KR 920009016 A KR920009016 A KR 920009016A
Authority
KR
South Korea
Prior art keywords
terminal
resistor
pulse transformer
pole
emitter
Prior art date
Application number
KR1019900017541A
Other languages
English (en)
Inventor
김효규
김동일
Original Assignee
강진구
삼성전자 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 강진구, 삼성전자 주식회사 filed Critical 강진구
Priority to KR1019900017541A priority Critical patent/KR920009016A/ko
Priority to US07/780,777 priority patent/US5235224A/en
Priority to JP3313899A priority patent/JP2726345B2/ja
Publication of KR920009016A publication Critical patent/KR920009016A/ko
Priority to KR2019930004822U priority patent/KR930005832Y1/ko

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/16—Modifications for eliminating interference voltages or currents
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/605—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors with galvanic isolation between the control circuit and the output circuit
    • H03K17/61—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors with galvanic isolation between the control circuit and the output circuit using transformer coupling

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Dc-Dc Converters (AREA)

Abstract

내용 없음

Description

펄스 트랜스를 이용한 전류감지회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 전기 회로도.

Claims (1)

  1. 펄스 트랜스를 이용한 전류 감지회로에 있어서, 펄스트랜스를 1,2차로 구비하여 1차펄스트랜스(PT1)의 1,3단자는 트랜지스터 T3 및 T4각각의 에미터극에 접속시키고 2번단자는 그라운드 접지 시키면서 4,6번 단자는 트랜지스터 T1 및 T2각각의 콜렉터극에 접속되도록 하고, 5번단자는 저항 R1의 한 단자와 접속한다. 2차 펄스트랜스(RT2)의 1번 단자는 저항 R6의 한 단자와, 2번, 3번 공통단자는 그라운드 접지시키면서 4번단자는 저항 R2와 R3 가각의 한단자와 5번단자는 저항 R4와 R5각각의 한단자에 접속토록하고 5번 7번 단자는 트랜지스터 T1과 T3각각의 에미터극에 접속한다. 또한 저항 R1의 다른측 한 단자는 트랜지스터 T1, T2각각의 에미터 극에 접속토록하고, 저항 R4, R5, R6, R7각각의 한 단자는 트랜지스터 T1, T2, T3, T4각각의 베이스 극과 접속하고, 트랜지스터 T1의 에미터극과 T2의 에미터극, 또한 T3의 에미터극과 T4의 에미터극을 서로 연결구성한다. 저항 R6는 2차 펄스트랜스 PT2의 1번 단자에, 저항 R7의 한단자는 트랜지스터 T3,T4각각의 에미터 극과, 다른측 한단자는 오퍼앰프(OP)의 “-”극에 접속토록한다. 한편 콘덴서(C)와 가변저항(VR)은 병열 연결 구성하여 한선은 저항 R7과 다른측 한선은 오퍼앰프(OP)의 출력선과 접속토록하고 오퍼앰프(OP)의 “+”극은 그라운드 접지시켜 펄스트랜스를 이용하여 그라운드 접지를 분리하고 고전류 계통의 전류 감지는 저항 R1의 양단에 발생되는 전류에 의한 전압으로 감지토록 구성됨을 특징으로 하는 펄스 트랜스를 이용한 전류감지회로.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900017541A 1990-10-31 1990-10-31 펄스 트랜스를 이용한 전류감지회로 KR920009016A (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019900017541A KR920009016A (ko) 1990-10-31 1990-10-31 펄스 트랜스를 이용한 전류감지회로
US07/780,777 US5235224A (en) 1990-10-31 1991-10-23 Current detecting circuit using pulse transformer
JP3313899A JP2726345B2 (ja) 1990-10-31 1991-10-31 パルストランスフォーマを利用した電流検出回路
KR2019930004822U KR930005832Y1 (ko) 1990-10-31 1993-03-30 펄스 트랜스를 이용한 전류감지회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900017541A KR920009016A (ko) 1990-10-31 1990-10-31 펄스 트랜스를 이용한 전류감지회로

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR2019930004822U Division KR930005832Y1 (ko) 1990-10-31 1993-03-30 펄스 트랜스를 이용한 전류감지회로

Publications (1)

Publication Number Publication Date
KR920009016A true KR920009016A (ko) 1992-05-28

Family

ID=19305440

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900017541A KR920009016A (ko) 1990-10-31 1990-10-31 펄스 트랜스를 이용한 전류감지회로

Country Status (3)

Country Link
US (1) US5235224A (ko)
JP (1) JP2726345B2 (ko)
KR (1) KR920009016A (ko)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334316A (en) * 1964-08-13 1967-08-01 Minnesota Mining & Mfg Feedback modulator oscillator
US3858057A (en) * 1973-11-28 1974-12-31 Gte Automatic Electric Lab Inc Solid state relay
JPS5228835A (en) * 1975-08-29 1977-03-04 Sony Corp Multiplier
FR2351538A1 (fr) * 1976-05-11 1977-12-09 Lignes Telegraph Telephon Circuit de transposition en frequence a consommation reduite
DE2657589C2 (de) * 1976-12-18 1982-11-18 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Dämpfungsfreier elektronischer Schalter
US4194160A (en) * 1977-09-02 1980-03-18 International Telephone And Telegraph Corporation Noninteractive heater power supply
US4349752A (en) * 1980-07-28 1982-09-14 Reliance Electric Company Magnetic couple drive circuit for power switching device
US4412141A (en) * 1980-12-16 1983-10-25 General Datacomm Industries, Inc. Three state loop keyer
JPS57193819A (en) * 1981-04-28 1982-11-29 Toko Inc Switching regulator
US4482817A (en) * 1981-12-30 1984-11-13 Stromberg-Carlson Bilateral electronic switch
JPH07948Y2 (ja) * 1986-05-13 1995-01-11 株式会社明電舍 電流検出装置

Also Published As

Publication number Publication date
JPH04285862A (ja) 1992-10-09
US5235224A (en) 1993-08-10
JP2726345B2 (ja) 1998-03-11

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A201 Request for examination
E902 Notification of reason for refusal
WICV Withdrawal of application forming a basis of a converted application