KR950006466A

KR950006466A - Intermediate frequency (IF) automatic adjustment device using clamp board

Info

Publication number: KR950006466A
Application number: KR1019930015672A
Authority: KR
Inventors: 이수원
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1993-08-13
Filing date: 1993-08-13
Publication date: 1995-03-21
Also published as: KR950012277B1

Abstract

본 발명은 PCB자동조정기에 관한 것으로 특히 중간주파수(IF) 자동조정기에서 TP점으로부터 검출된 신호를 측정시 DC레벨의 변화를 없애 정확한 값을 알아내기 위한 클램프보드를 이용하는 중간주파수 자동조정장치에 관한 것으로, 제어명령을 송출하는 컴퓨터(10)를 GPIB제어기(10')를 거쳐 디지탈신호를 입, 출력하는 D I/O보드(80)와 스타트신호 및 결과를 체크하는 PLC(80')를 상호 연결되게 하되, DC전압을 하지그(90")에 출력하는 프로그래머블파워서플라이(70)와 PCB어셈블리(90)에 신호를 공급하는 IF신호발생기(60)와 PCB어셈블리(90) TP점신호를 선택하는 멀티플렉서(50)와 아날로그신호를 디지탈신호로 바꾸는 A/D변환기(30)와 모터(20')를 회전시켜 PCB어셈블리(90) TP점을 조정하게 하는 모터제어기(20)를 GPIB제어기(10')를 통해 컴퓨터(10)에 상호 연결되게 한 통상의 PCB자동조정기 중간주파수(IF) 자동조정장치에 있어서, 상기 PCB어셈블리(90) TP점의 신호세기가 변동하더라도 IF신호발생기(60)에서 출력되는 SYNC신호를 클램프시켜 항상 일정한 신호를 출력하는 IF신호클램프보드(40)를 통해 A/D변환기(30)에 연결되게 한 것이다.The present invention relates to a PCB automatic regulator, and more particularly, to an intermediate frequency automatic regulator using a clamp board to find out an accurate value by removing a change in DC level when measuring a signal detected from a TP point in an intermediate frequency (IF) automatic regulator. The DI / O board 80 which inputs and outputs a digital signal through the GPIB controller 10 'and the PLC 80' which checks the start signal and the result are interconnected. Selecting the TP point signal of the IF signal generator 60 and the PCB assembly 90 to supply a signal to the programmable power supply 70 and the PCB assembly 90 to output the DC voltage to the hag 90 ". A GPIB controller 10 'is a multiplexer 50 and an A / D converter 30 for converting an analog signal to a digital signal and a motor controller 20 for rotating the motor 20' to adjust the PCB assembly 90 TP point. A conventional PC interconnected to the computer 10 via B automatic regulator In the IF apparatus, the IF signal which clamps the SYNC signal output from the IF signal generator 60 and always outputs a constant signal even when the signal strength of the PCB assembly 90 TP is changed. It is to be connected to the A / D converter 30 through the clamp board (40).

Description

Intermediate frequency (IF) automatic adjustment device using clamp board

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

제1도는 본 발명의 구성도,1 is a block diagram of the present invention,

제2도 및 제3도는 본 발명에 따른 동작흐름도.2 and 3 are operational flow diagrams according to the present invention.

Claims

The computer 10 sending control commands is connected to the DI / O board 80 for inputting and outputting a digital signal through the GPIB controller 10 'and the PLC 80' for checking the start signal and the result. And multiplexer for selecting the TP point signal of the IF signal generator 60 and the PCB assembly 90 which supplies the programmable power supply 70 and the PCB assembly 90 which output to the Hagig 90 "as a DC voltage. A GPIB controller 10 ', and an A / D converter 30 for converting an analog signal into a digital signal and a motor controller 20 for rotating the motor 20' to adjust the TP point of the PCB assembly 90. In the conventional PCB automatic regulator intermediate frequency (IF) automatic adjustment device to be connected to the computer 10 through the, even if the signal strength of the PCB assembly 90 TP point is output from the IF signal generator 60 A / D side via IF signal clamp board 40 which clamps SYNC signal and always outputs constant signal. Automatic adjustment of the intermediate frequency using the clamp board, characterized in that connected to the ventilation (30).

※ Note: The disclosure is based on the initial application.