KR900013309A - Motor speed detection circuit - Google Patents

Motor speed detection circuit Download PDF

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Publication number
KR900013309A
KR900013309A KR1019890002489A KR890002489A KR900013309A KR 900013309 A KR900013309 A KR 900013309A KR 1019890002489 A KR1019890002489 A KR 1019890002489A KR 890002489 A KR890002489 A KR 890002489A KR 900013309 A KR900013309 A KR 900013309A
Authority
KR
South Korea
Prior art keywords
counter
motor
microprocessor
counting
motor speed
Prior art date
Application number
KR1019890002489A
Other languages
Korean (ko)
Inventor
진경복
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 KR1019890002489A priority Critical patent/KR900013309A/en
Publication of KR900013309A publication Critical patent/KR900013309A/en

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  • Control Of Electric Motors In General (AREA)

Abstract

내용 없음No content

Description

모터 속도 검출 회로Motor speed detection circuit

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

제1도는 본 발명의 전체 블럭도,1 is an overall block diagram of the present invention,

제2도는 본 발명의 제1 및 제2 카운터의 입력 파형도,2 is an input waveform diagram of the first and second counters of the present invention,

제3도는 제1 카운터의 세부 회로도,3 is a detailed circuit diagram of the first counter,

제4도는 제2 카운터의 세부 회로도.4 is a detailed circuit diagram of a second counter.

Claims (3)

모터의 위치 및 속도를 검출, 제어하는 마이크로 프로세서(10)와, D/A 변환기(20)와, PWM 증폭회로(30)와, 모터(40)와, 모터의 회전방향에 따라 위상차가 다른 펄스를 발생시키는 엔코더(50)로 이루어진 시스템에 있어서, 일정한 샘플링 시간동안 상기 엔코더(50)로 부터 출력되는 A상과 B상 신호를 방향성 있게 카운트하는 제1 카운터(60)와, 상기 마이크로 프로세서(10)의 자체 클럭을 카운트하는 제2 카운터(70)를 구비하여 모터 속도 검출시 오차를 극소화할 수 있도록 한 것을 특징으로 하는 모터 속도 검출 회로.The microprocessor 10 for detecting and controlling the position and speed of the motor, the D / A converter 20, the PWM amplification circuit 30, the motor 40, and pulses having different phase differences depending on the rotational direction of the motor. In the system consisting of an encoder (50) for generating a first counter 60 for directionally counting the A-phase and B-phase signals output from the encoder (50) for a predetermined sampling time, and the microprocessor (10). And a second counter (70) for counting its own clock so as to minimize errors in detecting the motor speed. 제1항에 있어서, 상기 제1 카운터(60)는 모터의 회전 방향에 따라 업 및 다운 신호를 발생시키는 업/다운신호 발생회로(3A)와, 상기 업 및 다운신호를 방향성 있게 카운트하는 업/다운 카운터(3B)와, 마이크로 프로세서(10)의 제어에 따라 클리어 신호와 클럭신호를 발생시킴과 아울러 제2 카운터(70)의 카운팅 종점을 지정하기 위한 인터럽트신호를 발생시키는 제어회로(3C)로 구성된 것을 특징으로 하는 모터 속도 검출회로.2. The first and second counters (60) according to claim 1, wherein the first counter (60) includes an up / down signal generation circuit (3A) for generating up and down signals according to the rotational direction of the motor, and up / down for directionally counting the up and down signals. The control circuit 3C which generates a clear signal and a clock signal under the control of the down counter 3B and the microprocessor 10 and generates an interrupt signal for designating the counting end point of the second counter 70. A motor speed detection circuit, characterized in that configured. 제1항에 있어서,상기 제2 카운터(70)는 인버터(INV7) (INV8)와, 상기 인버터(INV8)의 출력을 카운트하는 카운터(410) (420) (430)와, 상기 카운터 (420) (430)의 카운트 내용을 마이크로 프로세서(10)로 전달하는 3상태 버퍼(440)와, 마이크로 프로세서(10)의 제어에 따른 클리어 신호 및 클럭신호를 발생시키는 인버터 (INV8) 및 오아게이트(OR3) (OR4)로 구성된 것을 특징으로 하는 모터 속도 검출 회로.The counter of claim 1, wherein the second counter 70 includes an inverter INV 7 (INV 8 ), a counter 410, 420, 430 that counts an output of the inverter INV 8 , and the counter. A tri-state buffer 440 for transmitting the count contents of the processor 420 to the microprocessor 10, an inverter INV 8 for generating a clear signal, and a clock signal according to the control of the microprocessor 10. A motor speed detection circuit comprising a gate (OR 3 ) (OR 4 ). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890002489A 1989-02-23 1989-02-23 Motor speed detection circuit KR900013309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890002489A KR900013309A (en) 1989-02-23 1989-02-23 Motor speed detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890002489A KR900013309A (en) 1989-02-23 1989-02-23 Motor speed detection circuit

Publications (1)

Publication Number Publication Date
KR900013309A true KR900013309A (en) 1990-09-05

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ID=68051323

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890002489A KR900013309A (en) 1989-02-23 1989-02-23 Motor speed detection circuit

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KR (1) KR900013309A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030073053A (en) * 2002-03-08 2003-09-19 (주)케이투파워 Sensing circuit using magnetic pick-up and that of the method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030073053A (en) * 2002-03-08 2003-09-19 (주)케이투파워 Sensing circuit using magnetic pick-up and that of the method

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E601 Decision to refuse application