KR930023732A - Resistance measuring circuit using DC constant current source - Google Patents

Resistance measuring circuit using DC constant current source Download PDF

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Publication number
KR930023732A
KR930023732A KR1019920009360A KR920009360A KR930023732A KR 930023732 A KR930023732 A KR 930023732A KR 1019920009360 A KR1019920009360 A KR 1019920009360A KR 920009360 A KR920009360 A KR 920009360A KR 930023732 A KR930023732 A KR 930023732A
Authority
KR
South Korea
Prior art keywords
constant current
current source
resistance
measuring circuit
unit
Prior art date
Application number
KR1019920009360A
Other languages
Korean (ko)
Other versions
KR0184893B1 (en
Inventor
류재춘
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 KR1019920009360A priority Critical patent/KR0184893B1/en
Publication of KR930023732A publication Critical patent/KR930023732A/en
Application granted granted Critical
Publication of KR0184893B1 publication Critical patent/KR0184893B1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/08—Measuring resistance by measuring both voltage and current

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

본 발명은 직류정전류원을 이용한 저항측정회로에 관한 것으로서, 회로내 검사장치(In-Circuit Tester)를 위한 요소 기술의 일부에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resistance measurement circuit using a DC constant current source, and to a part of element technology for an in-circuit tester.

특히, 컴퓨터를 이용한 PCB조립, 검사공정에서 저항성분의 측정에 이용하여 부품의 불량판정이 가능토록 하게 되는 것이고, 안정된 정전류원을 공급하여 저항성분을 측정함으로써 PCB에 정확한 용량의 저항이 삽입되었는가를 검사하여 공정의 불량을 감소시키게 된 직류정전류원을 이용한 저항측정 회로인 것이다.In particular, it is possible to determine the defects of components by measuring resistance components in PCB assembly and inspection process using computer, and by supplying stable constant current source and measuring resistance components, whether resistance of correct capacity is inserted in PCB. It is a resistance measurement circuit using a DC constant current source that has been inspected to reduce process defects.

Description

잭류정전류원을 이용한 저항 측정회로Resistance measurement circuit using jacks constant current source

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 전체적인 회로구성도, 제2도는 본 발명의 개략적인 블록구성도.1 is an overall circuit diagram of the present invention, Figure 2 is a schematic block diagram of the present invention.

Claims (1)

OP앰프 입력단의 정전압원부(10)와 정전류를 공급하는 정전류 발생부(20)와 전류를 선택하기 위한 전류원 셀렉트부(30)와 두 핀간의 저항을 연결하여 전압측정을 위한 측정부(40)와 전압값을 샘플링 및 홀딩하기 위한 샘플 홀더부(50)와 아날로그값을 디지탈 값으로 변환하는 A/D변환부(60)와 상기의 각부를 제어하고 A/D변환부(60)을 출력값을 받는 마이컴부(70)로 구성되어 정전류원에 의한 저항(R)성분 측정을 하게 됨을 특징으로 하는 직류정전류원을 이용한 저항 측정회로.The constant voltage source unit 10 of the OP amplifier input terminal and the constant current generator 20 for supplying a constant current, the current source select unit 30 for selecting a current and the resistance between the two pins measuring unit 40 for voltage measurement A sample holder 50 for sampling and holding voltage values, an A / D converter 60 for converting an analog value to a digital value, and each of the above parts, and the A / D converter 60 receives an output value. A resistance measuring circuit using a DC constant current source, characterized in that the microcomputer unit 70 is configured to measure the resistance (R) component by the constant current source. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920009360A 1992-05-30 1992-05-30 Resistance measuring circuit using dc constant current source KR0184893B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920009360A KR0184893B1 (en) 1992-05-30 1992-05-30 Resistance measuring circuit using dc constant current source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920009360A KR0184893B1 (en) 1992-05-30 1992-05-30 Resistance measuring circuit using dc constant current source

Publications (2)

Publication Number Publication Date
KR930023732A true KR930023732A (en) 1993-12-21
KR0184893B1 KR0184893B1 (en) 1999-04-15

Family

ID=19333924

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920009360A KR0184893B1 (en) 1992-05-30 1992-05-30 Resistance measuring circuit using dc constant current source

Country Status (1)

Country Link
KR (1) KR0184893B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111413547A (en) * 2020-05-06 2020-07-14 苏州市运泰利自动化设备有限公司 Mainboard resistance test system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111413547A (en) * 2020-05-06 2020-07-14 苏州市运泰利自动化设备有限公司 Mainboard resistance test system and method

Also Published As

Publication number Publication date
KR0184893B1 (en) 1999-04-15

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