KR950013033A - Current detection method of pulse width modulated inverter - Google Patents

Current detection method of pulse width modulated inverter Download PDF

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Publication number
KR950013033A
KR950013033A KR1019930020788A KR930020788A KR950013033A KR 950013033 A KR950013033 A KR 950013033A KR 1019930020788 A KR1019930020788 A KR 1019930020788A KR 930020788 A KR930020788 A KR 930020788A KR 950013033 A KR950013033 A KR 950013033A
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KR
South Korea
Prior art keywords
current detection
detection method
current
sample values
pwm inverter
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KR1019930020788A
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Korean (ko)
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KR0135495B1 (en
Inventor
야스히로 야마모또
Original Assignee
고지마 게이지
가부시끼가이샤 메이덴샤
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Priority to KR1019930020788A priority Critical patent/KR0135495B1/en
Publication of KR950013033A publication Critical patent/KR950013033A/en
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Publication of KR0135495B1 publication Critical patent/KR0135495B1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/08—Duration or width modulation ; Duty cycle modulation

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  • Inverter Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

PWM인버터의 출력의 전류검출 방법은 PWM 인버터의 2개의 제로 백터의 타이밍에서 전류를 샘플링하는 단계, 잡음에 의해 영향을 받는 최종 샘플치를 검출된 전류 샘플치로서 선택하는 단계, 및 2개의 백터들 간의 시차가 큰 경우, 2개의 샘플치들의 평균치를 선택하는 단계를 포함한다.The current detection method of the output of the PWM inverter includes sampling a current at the timing of two zero vectors of the PWM inverter, selecting the final sample value affected by the noise as the detected current sample value, and between the two vectors. If the parallax is large, selecting an average of two sample values.

Description

펄스폭 변조 인버터의 전류 검출 방법Current detection method of pulse width modulated inverter

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

제1도는 본 발명의 양호한 실시예에 따른 전류 검출 방법의 동작의 도시한 블럭도,1 is a block diagram showing the operation of a current detection method according to a preferred embodiment of the present invention;

제4도는 전류 검출에 이용되는 PWM 인버터의 블럭도.4 is a block diagram of a PWM inverter used for current detection.

Claims (2)

PWM 인버터의 출력에 대한동일 주기의 전류 샘플링이 이용되는 전류 검출 방법에 있어서, 2개의 제로 백터 타이밍에 따라 상기 PWM 인버터의 출력 전류를 샘플링하는 단계; 상기 샘플링 단계에서 획득된 2개의 샘플치들 사이의 시차 및 상기 PWM 인버터 출력의 전압 전환 타이밍을 결정하는 단계, 및 잡음의 최종 영향을 전류 검출치로서 나타내는 상기 샘플치들 중 하나의 샘플치를 선택하는 단계를 포함하는 것을 특징으로 하는 전류 검출 방법.CLAIMS 1. A current detection method using equal current sampling of the output of a PWM inverter, comprising: sampling the output current of the PWM inverter according to two zero vector timings; Determining the time difference between the two sample values obtained in the sampling step and the voltage switching timing of the PWM inverter output, and selecting one of the sample values representing the final effect of noise as the current detection value. A current detection method comprising a. 제1항에 있어서, 상기 2개이 샘플치들 간의 시차가 큰 경우, 상기 2개의 샘플치들의 평균치가 검출된 전류치로서 선택되는 것을 특징으로 하는 전류 검출 방법.The current detection method according to claim 1, wherein if the time difference between the two sample values is large, the average value of the two sample values is selected as the detected current value. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930020788A 1993-10-08 1993-10-08 Current detecting method of pulse modulated inverter KR0135495B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930020788A KR0135495B1 (en) 1993-10-08 1993-10-08 Current detecting method of pulse modulated inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930020788A KR0135495B1 (en) 1993-10-08 1993-10-08 Current detecting method of pulse modulated inverter

Publications (2)

Publication Number Publication Date
KR950013033A true KR950013033A (en) 1995-05-17
KR0135495B1 KR0135495B1 (en) 1998-05-15

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ID=19365441

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930020788A KR0135495B1 (en) 1993-10-08 1993-10-08 Current detecting method of pulse modulated inverter

Country Status (1)

Country Link
KR (1) KR0135495B1 (en)

Also Published As

Publication number Publication date
KR0135495B1 (en) 1998-05-15

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