JPS6425896U - - Google Patents

Info

Publication number
JPS6425896U
JPS6425896U JP12040387U JP12040387U JPS6425896U JP S6425896 U JPS6425896 U JP S6425896U JP 12040387 U JP12040387 U JP 12040387U JP 12040387 U JP12040387 U JP 12040387U JP S6425896 U JPS6425896 U JP S6425896U
Authority
JP
Japan
Prior art keywords
electrical signal
phase
amplitude
microcomputer
instructs
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP12040387U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP12040387U priority Critical patent/JPS6425896U/ja
Publication of JPS6425896U publication Critical patent/JPS6425896U/ja
Pending legal-status Critical Current

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Landscapes

  • Control Of Ac Motors In General (AREA)
  • Noise Elimination (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例ブロツク図である。 図中、１はインバータ、４，９は増幅器、５は
位相用マイコン、６は増幅用マイコン、７は移相
器、８は電圧制御式増幅器である。 FIG. 1 is a block diagram of one embodiment of the present invention. In the figure, 1 is an inverter, 4 and 9 are amplifiers, 5 is a phase microcomputer, 6 is an amplification microcomputer, 7 is a phase shifter, and 8 is a voltage-controlled amplifier.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電磁騒音を電気信号として取り出す手段と、上
記電気信号波形の位相を変えて逆相にする移相器
と、この移相された電気信号波形の振幅を変えて
同一振幅とする電圧制御式増幅器と、上記電気信
号に基づき位相の進みや遅れを上記移相器に指令
すると共に、上記電気信号に基づぎ振幅の大小を
上記電圧制御式増幅器に指令するマイコンとを有
する電磁騒音低減回路。 A means for extracting electromagnetic noise as an electrical signal, a phase shifter that changes the phase of the electrical signal waveform to make it an opposite phase, and a voltage-controlled amplifier that changes the amplitude of the phase-shifted electrical signal waveform to make it the same amplitude. an electromagnetic noise reduction circuit comprising: a microcomputer that instructs the phase shifter to advance or lag the phase based on the electrical signal; and a microcomputer that instructs the voltage-controlled amplifier to increase or decrease the amplitude based on the electrical signal.
JP12040387U 1987-08-07 1987-08-07 Pending JPS6425896U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12040387U JPS6425896U (en) 1987-08-07 1987-08-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12040387U JPS6425896U (en) 1987-08-07 1987-08-07

Publications (1)

Publication Number Publication Date
JPS6425896U true JPS6425896U (en) 1989-02-14

Family

ID=31366479

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12040387U Pending JPS6425896U (en) 1987-08-07 1987-08-07

Country Status (1)

Country Link
JP (1) JPS6425896U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0429583A (en) * 1990-05-25 1992-01-31 Makino Milling Mach Co Ltd Method and apparatus for controlling motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0429583A (en) * 1990-05-25 1992-01-31 Makino Milling Mach Co Ltd Method and apparatus for controlling motor

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