KR930013959A - Hybrid Circuit Board Measurement Circuit by Computer Control - Google Patents

Hybrid Circuit Board Measurement Circuit by Computer Control Download PDF

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Publication number
KR930013959A
KR930013959A KR1019910022417A KR910022417A KR930013959A KR 930013959 A KR930013959 A KR 930013959A KR 1019910022417 A KR1019910022417 A KR 1019910022417A KR 910022417 A KR910022417 A KR 910022417A KR 930013959 A KR930013959 A KR 930013959A
Authority
KR
South Korea
Prior art keywords
analog
data
circuit board
digital
circuit
Prior art date
Application number
KR1019910022417A
Other languages
Korean (ko)
Other versions
KR950008832B1 (en
Inventor
전찬욱
Original Assignee
배순훈
대우전자 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 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019910022417A priority Critical patent/KR950008832B1/en
Publication of KR930013959A publication Critical patent/KR930013959A/en
Application granted granted Critical
Publication of KR950008832B1 publication Critical patent/KR950008832B1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere

Abstract

본 발명은 컴퓨터 제어에 있어서 특히 데이타(DATA)를 입,출력시켜 시스템 (SYSTEM)제어 및 데이타 관리가 가능한 아날로그(ANALOG)회로를 부가하기 위한 컴퓨터 제어에 의한 혼성회로 기판 측정회로에 관한 것으로 컴퓨터(15)의 각 단자 (D0-A9)를 양방향성 버퍼(13)와 디멀터플레서(2)를 경유하여 포트확장기(1)(1')에 인가하여 세팅 및 포트를 선택하고 상기 포트확장기(1')를 펄스발생기(8)에 연결시켜 오실레이터(7)에서 발생되는 구형파 펄스를 기준클럭을 이용해 데이타를 분할하여 카운터(9)(9')와 롬(10) 및 디지탈/아날로그 변환기(6) 그리고 저역 필터(11')를 통해 감쇄기(12)에 인가하여 사인파(SINE WAVE)를 감쇠시켜 50MV의 사인파를 출력시켜 발진부(3)와 증폭회로(4)를 통해 증폭하여 교류를 직류로 바꾸는 실효값 변환부(5)와 필터(11)를 거쳐 아날로그/디지탈 변환기(5')에 인가되어 이의 출력단에 출력된 직류(DC)값을 디지탈 신호로 포트 확장기(1)의 단자(PB)를 통해 컴퓨터 내부로 읽어들어가 측정하고자 하는 데이타의 관리가 용이하고 신뢰성 및 데이타의 측정이 가능한 효과를 가지는 유용한 발명인 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hybrid circuit board measuring circuit by computer control for adding an analog circuit capable of system control and data management by inputting and outputting data. Each terminal (D 0 -A 9 ) of 15) is applied to the port expander (1) (1 ') via a bidirectional buffer (13) and a demultiplexer (2) to select a setting and a port. 1 ') to the pulse generator 8 to divide the square wave pulses generated by the oscillator 7 using a reference clock to divide the data using the counters 9, 9', ROM 10 and the digital / analog converter 6. And attenuates the sine wave (SINE WAVE) through the low pass filter (11 ') and outputs a 50 MV sine wave to amplify through the oscillator (3) and the amplification circuit (4) to change the alternating current into direct current. Analog / digital conversion via the RMS conversion unit 5 and the filter 11 It is easy to manage the data to be measured by reading the DC value applied to the device 5 'and outputted at its output terminal into the computer through the terminal PB of the port expander 1 as a digital signal. It is a useful invention having the effect of measuring the data.

Description

컴퓨터 제어에 의한 혼성회로 기판 측정회로.Hybrid circuit board measurement circuit by computer control.

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명의 회로도.1 is a circuit diagram of the present invention.

Claims (3)

컴퓨터(15)의 각 단자(D0-A9)를 디지탈 버퍼(13)와 디멀티플렉서(2)를 통해 포트확장기(1)(1')와 아날로그/디지탈 변환기(5') 및 펄스발생기(8)에 접속되게 하되 포트확장기(1)를 제어포트인 시료부(3)와 연결짖고 포트확장기(1')를 펄스발생기(8)에 인가하되 펄스발생기(8)에 오실레이터(7)를 두며 카운터(9)(9')와 롬(10) 및 디지탈/아날로그 변환기(6) 그리고 필터(11')를 통해 감쇠기(12)에 접속시키되 이의 출력단을 시료부(3)에 인가하고 상기 시료부(3)를 증폭회로(4)와 아날로그/디지탈 변환기(5) 및 필터(11)를 거쳐 실효값(RMS) 변환부(5)에 연결하되 아날로그/디지탈 변환기(5')를 포트확장기(1)에 상호 연결되게 구성시킨 것을 특징으로 하는 컴퓨터 제어에 의한 혼성회로기판 측정회로.Each terminal D 0- A 9 of the computer 15 is connected via a digital buffer 13 and a demultiplexer 2 to a port expander 1, 1 ′, an analog / digital converter 5 ′ and a pulse generator 8. Connect the port expander (1) to the sample part (3), which is the control port, and apply the port expander (1 ') to the pulse generator (8) with the oscillator (7) on the pulse generator (8). (9) (9 ') and the ROM (10) and the digital / analog converter (6) and the filter (11') connected to the attenuator (12), the output of which is applied to the sample section (3) and the sample section ( 3) through the amplifier circuit 4, the analog / digital converter 5, and the filter 11 to the RMS conversion unit 5, but the analog / digital converter 5 'is connected to the port expander (1). Hybrid circuit board measurement circuit by computer control, characterized in that configured to be interconnected to. 제1항에 있어서 저항(R8)(R9)과 콘덴서(C4)로 저역필터(11')를 구성하고 증폭기(OP2)와 저항(R10)및 가변저항(VR4)으로 감쇠기(12)를 구성시킨 것을 특징으로 하는 컴퓨터 제어에 의한 혼성회로기판 측정회로.The method of claim 1, wherein the resistance (R 8) (R 9) and a capacitor (C 4) to the low-pass filter configuration and an amplifier (OP 2) (11 ') and a resistor (R 10) and a variable resistor (VR 4) to the attenuator A hybrid circuit board measurement circuit by computer control, characterized in that (12) is configured. 제1항에 있어서 증폭기(OP1)와 정항(R1-R3) 및 가변저항(VR1)으로 증폭회로 (4)를 구성시킨 것을 특징으로 하는 컴퓨터 제어에 의한 혼성회로기판 측정회로.The hybrid circuit board measuring circuit according to claim 1, wherein the amplifier circuit (4) is composed of an amplifier (OP 1 ), a positive term (R 1 -R 3 ), and a variable resistor (VR 1 ). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910022417A 1991-12-09 1991-12-09 Circuit for testing a circuit board by computer control KR950008832B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910022417A KR950008832B1 (en) 1991-12-09 1991-12-09 Circuit for testing a circuit board by computer control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910022417A KR950008832B1 (en) 1991-12-09 1991-12-09 Circuit for testing a circuit board by computer control

Publications (2)

Publication Number Publication Date
KR930013959A true KR930013959A (en) 1993-07-22
KR950008832B1 KR950008832B1 (en) 1995-08-08

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Application Number Title Priority Date Filing Date
KR1019910022417A KR950008832B1 (en) 1991-12-09 1991-12-09 Circuit for testing a circuit board by computer control

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KR (1) KR950008832B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108490287A (en) * 2018-03-07 2018-09-04 南通天禾机械科技有限公司 Full-automatic ageing machine multistage placement test technique

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KR950008832B1 (en) 1995-08-08

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