KR910019311A - Automatic stop by checking low voltage of 3-phase BLDC motor - Google Patents

Automatic stop by checking low voltage of 3-phase BLDC motor Download PDF

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Publication number
KR910019311A
KR910019311A KR1019900007648A KR900007648A KR910019311A KR 910019311 A KR910019311 A KR 910019311A KR 1019900007648 A KR1019900007648 A KR 1019900007648A KR 900007648 A KR900007648 A KR 900007648A KR 910019311 A KR910019311 A KR 910019311A
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KR
South Korea
Prior art keywords
bldc motor
phase bldc
low voltage
motor
signal
Prior art date
Application number
KR1019900007648A
Other languages
Korean (ko)
Inventor
정진식
Original Assignee
이헌조
주식회사 금성사
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 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019900007648A priority Critical patent/KR910019311A/en
Publication of KR910019311A publication Critical patent/KR910019311A/en

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  • Control Of Electric Motors In General (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

내용 없음No content

Description

3상 BLDC 모터의 저전압 체크에 의한 자동정지장치Automatic stop by checking low voltage of 3-phase BLDC motor

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

제 1 도는 본 발명의 일실시예를 나타내는 회로도, 제 2 도는 제 1 도의 마이크로 컴퓨터 작동과정을 나타내는 프로우챠트, 제 3 도 (A) (B)는 제 1 도 신호증폭부의 입력, 출력신호를 나타내는 파형도.1 is a circuit diagram showing an embodiment of the present invention, FIG. 2 is a prochart showing a microcomputer operating process of FIG. 1, and FIG. 3 (A) and (B) show input and output signals of FIG. Waveform diagram showing.

Claims (1)

3상 BLDC 모터(1)와 모터구동용 IC(4)를 구비한 카셋트 데크에 있어서, 3상 BLDC 모터(1)의 역기전력에 의해 발생되는 정현파 주파수 신호를 구형파 신호로 증폭하는 신호증폭부(2)와 상기 신호증폭부(2)의 출력신호인 구형파 신호를 입력데이터로 하여 주기를 측정하고 이 주기로 부터 관계식@에 의해 주파수를 계산하여 실정 기준치와 비교하므로써 밧데리 전압의 하강상태를 확인한후 신호를 출력시키는 프로그램이 내장된 마이크로컴퓨터(3)를 상기 모터(1)와 모터구동용 IC(4) 사이에 순차적으로 접속시켜 구성함을 특징으로 하는 3상 BLDC 모터의 저전압 체크에 의한 자동정지장치.In a cassette deck having a three-phase BLDC motor 1 and a motor driving IC 4, a signal amplifying part 2 for amplifying a sinusoidal frequency signal generated by the counter electromotive force of the three-phase BLDC motor 1 into a square wave signal (2). ) And the square wave signal that is the output signal of the signal amplifier 2 as input data. The period is measured, and the frequency is calculated using the relational equation @ from this period and compared with the actual reference value. A microcomputer (3) incorporating a program for outputting is automatically connected between the motor (1) and the motor driving IC (4), and configured to automatically stop the device according to the low voltage check of a three-phase BLDC motor. ※ 참고사항 : 최초출원내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900007648A 1990-05-26 1990-05-26 Automatic stop by checking low voltage of 3-phase BLDC motor KR910019311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900007648A KR910019311A (en) 1990-05-26 1990-05-26 Automatic stop by checking low voltage of 3-phase BLDC motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900007648A KR910019311A (en) 1990-05-26 1990-05-26 Automatic stop by checking low voltage of 3-phase BLDC motor

Publications (1)

Publication Number Publication Date
KR910019311A true KR910019311A (en) 1991-11-30

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Application Number Title Priority Date Filing Date
KR1019900007648A KR910019311A (en) 1990-05-26 1990-05-26 Automatic stop by checking low voltage of 3-phase BLDC motor

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100393793B1 (en) * 2001-02-22 2003-08-02 엘지전자 주식회사 Sensorless control apparatus for bldc motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100393793B1 (en) * 2001-02-22 2003-08-02 엘지전자 주식회사 Sensorless control apparatus for bldc motor

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