KR920021421A - Power supply synchronization signal detection circuit of elevator - Google Patents

Power supply synchronization signal detection circuit of elevator Download PDF

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Publication number
KR920021421A
KR920021421A KR1019910008176A KR910008176A KR920021421A KR 920021421 A KR920021421 A KR 920021421A KR 1019910008176 A KR1019910008176 A KR 1019910008176A KR 910008176 A KR910008176 A KR 910008176A KR 920021421 A KR920021421 A KR 920021421A
Authority
KR
South Korea
Prior art keywords
converter
signal detection
elevator
detection circuit
synchronization signal
Prior art date
Application number
KR1019910008176A
Other languages
Korean (ko)
Inventor
안종건
Original Assignee
이희종
금성산전 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 이희종, 금성산전 주식회사 filed Critical 이희종
Priority to KR1019910008176A priority Critical patent/KR920021421A/en
Publication of KR920021421A publication Critical patent/KR920021421A/en

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Abstract

내용 없음No content

Description

엘리베이터의 전원 동기신호 검출회로Power supply synchronization signal detection circuit of elevator

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

제3도는 본 발명에 따른 엘리베이터의 전원동기신호 검출회로도.3 is a power synchronization signal detection circuit diagram of an elevator according to the present invention.

제4도는 본 발명에 따른 전원동기신호 처리 흐름도.4 is a flow chart of a power synchronization signal processing according to the present invention.

제5도는 본 발명에 따른 전원동기신호 검출 파형도.5 is a waveform diagram of a power synchronization signal detection according to the present invention.

Claims (2)

인버터를 적용한 엘리베이터의 콘버터를 제어하는 엘리베이터의 전원동기신호 검출회로에 있어서, 3상교류 입력전원을 인가받는 3상 트랜스포머(3')와, 상기 3상 트랜스포머(3')의 출력을 인가받아 디지탈 신호로 변환하는 A/D 콘버터(6)와, 상기 A/D 콘버터(6)의 출력파형을 입력받아 동기신호를 검출하는 콘버터(4)의 제어신호로 인가하는 콘버터 콘트롤러(5)를 포함하여 구성된 것을 특징으로 하는 엘리베이터의 전원동기신호 검출신호.In an elevator power synchronous signal detection circuit that controls an inverter converter, a three-phase transformer (3 ') receiving a three-phase AC input power and an output of the three-phase transformer (3') are applied. An A / D converter 6 for converting into a signal and a converter controller 5 for receiving an output waveform of the A / D converter 6 and applying it as a control signal of the converter 4 for detecting a synchronization signal; Power synchronization signal detection signal of the elevator, characterized in that configured. 제1항에 있어서, 콘버터 콘트롤러(5)는 A/D 콘버터(3)의 출력파형을 입력받아 음(-)에서 양(+)으로 변할때 미분을 행하여 그 미분값이 미리 설정된 허용범위내의 값인지를 체크하여 입력미분값이 허용범위 내의 값이 아니면 동기시점으로 결정하여 콘버터로 인가하고 입력 미분값이 허용범위내의 값이면 동기시점을 결정치 않고 입력이상을 검출하도록 구성되는 것을 특징으로 하는 엘리베이티의 전원 동기신호 검출회로.The converter controller 5 receives the output waveform of the A / D converter 3 and performs a derivative when the signal is changed from negative (+) to positive (+) to determine whether the derivative is within a preset tolerance range. If the input derivative value is not within the allowable range by checking, it is determined as the synchronization point and applied to the converter. If the input derivative value is within the allowable range, it is configured to detect an input abnormality without determining the synchronization point. Power supply synchronization signal detection circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910008176A 1991-05-20 1991-05-20 Power supply synchronization signal detection circuit of elevator KR920021421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910008176A KR920021421A (en) 1991-05-20 1991-05-20 Power supply synchronization signal detection circuit of elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910008176A KR920021421A (en) 1991-05-20 1991-05-20 Power supply synchronization signal detection circuit of elevator

Publications (1)

Publication Number Publication Date
KR920021421A true KR920021421A (en) 1992-12-18

Family

ID=67432791

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910008176A KR920021421A (en) 1991-05-20 1991-05-20 Power supply synchronization signal detection circuit of elevator

Country Status (1)

Country Link
KR (1) KR920021421A (en)

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