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JPS6419986A - Soft starting circuit for motor - Google Patents

Soft starting circuit for motor

Info

Publication number
JPS6419986A
JPS6419986A JP17226287A JP17226287A JPS6419986A JP S6419986 A JPS6419986 A JP S6419986A JP 17226287 A JP17226287 A JP 17226287A JP 17226287 A JP17226287 A JP 17226287A JP S6419986 A JPS6419986 A JP S6419986A
Authority
JP
Japan
Prior art keywords
voltage
phase
zener
motor
zero
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
JP17226287A
Other languages
Japanese (ja)
Inventor
Ikutaro Hanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP17226287A priority Critical patent/JPS6419986A/en
Publication of JPS6419986A publication Critical patent/JPS6419986A/en
Pending legal-status Critical Current

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  • Motor And Converter Starters (AREA)

Abstract

PURPOSE:To inhibit the currents of each phase at low values while minimizing unbalanced strain generated at supply voltage by gradually increasing the angles of conduction of three TRIACs installed to a three-phase circuit between a three-phase power and a motor from the time of starting. CONSTITUTION:When starting command voltage Vi is applied, the voltage VC1 of a capacitor C1 rises linearly, and is kept at a fixed value when the voltage VC1 reaches the Zener voltage of a Zener diode VZ4. On the other hand, a circuit composed of full-wave rectification diodes D1-D3, resistors R1-R6, Zener diodes Z1-Z3, and photo-couplers PC1-PC3 outputs the zero- cross signal of line voltage. Circuits IC2, IC4 and IC6 transmit trigger signals over each phase TRIAC TR1, TR2 and TR3 through pulse circuits IC3, IC5, and IC7 after the delay time corresponding to the signal VC1 from the zero-cross point.
JP17226287A 1987-07-10 1987-07-10 Soft starting circuit for motor Pending JPS6419986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17226287A JPS6419986A (en) 1987-07-10 1987-07-10 Soft starting circuit for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17226287A JPS6419986A (en) 1987-07-10 1987-07-10 Soft starting circuit for motor

Publications (1)

Publication Number Publication Date
JPS6419986A true JPS6419986A (en) 1989-01-24

Family

ID=15938635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17226287A Pending JPS6419986A (en) 1987-07-10 1987-07-10 Soft starting circuit for motor

Country Status (1)

Country Link
JP (1) JPS6419986A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0591199U (en) * 1991-07-12 1993-12-10 財団法人工業技術研究院 Soft start circuit for single-phase induction motor
JPH05336774A (en) * 1992-05-04 1993-12-17 Agut Sa Start/stop controller and control method for three-phase induction motor
JP2008526657A (en) * 2004-12-17 2008-07-24 テキサコ ディベラップメント コーポレイション Apparatus and method for controlling speed of compressor motor of hydrogen production apparatus
US8185578B2 (en) 1999-09-14 2012-05-22 International Business Machines Corporation Client server system and method for executing an application utilizing distributed objects
CN113037175A (en) * 2021-04-15 2021-06-25 潘承业 Three-phase asynchronous motor, control device and control method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5222746A (en) * 1975-08-13 1977-02-21 Mitsubishi Electric Corp Ac load starting control device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5222746A (en) * 1975-08-13 1977-02-21 Mitsubishi Electric Corp Ac load starting control device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0591199U (en) * 1991-07-12 1993-12-10 財団法人工業技術研究院 Soft start circuit for single-phase induction motor
JPH05336774A (en) * 1992-05-04 1993-12-17 Agut Sa Start/stop controller and control method for three-phase induction motor
US8185578B2 (en) 1999-09-14 2012-05-22 International Business Machines Corporation Client server system and method for executing an application utilizing distributed objects
JP2008526657A (en) * 2004-12-17 2008-07-24 テキサコ ディベラップメント コーポレイション Apparatus and method for controlling speed of compressor motor of hydrogen production apparatus
CN113037175A (en) * 2021-04-15 2021-06-25 潘承业 Three-phase asynchronous motor, control device and control method
CN113037175B (en) * 2021-04-15 2021-12-03 潘承业 Three-phase asynchronous motor, control device and control method

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