JPS555017A - Induction motor controller - Google Patents

Induction motor controller

Info

Publication number
JPS555017A
JPS555017A JP7570578A JP7570578A JPS555017A JP S555017 A JPS555017 A JP S555017A JP 7570578 A JP7570578 A JP 7570578A JP 7570578 A JP7570578 A JP 7570578A JP S555017 A JPS555017 A JP S555017A
Authority
JP
Japan
Prior art keywords
signal
control
phase
speed
induction motor
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
JP7570578A
Other languages
Japanese (ja)
Inventor
Toshio Kadokura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7570578A priority Critical patent/JPS555017A/en
Publication of JPS555017A publication Critical patent/JPS555017A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To simplify an induction motor controller by applying a three-phase control signal used at accelerating time to DC dynamic braking used between two phases of a primary voltage control three-phase induction motor.
CONSTITUTION: A speed control circuit 1 produces a control signal 51a to a phase control circuit 51 upon reception of an instruction signal 2a from a speed instruction signal generator 2 and a speed signal 4a from a speed detector 4. When an acceleration signal is given, three-phase control gate signal is produced to SCR1∼SCR6. When DC dynamic braking instruction is given then, three-phase control is shut off to apply a gate signal for synchronizing SCR6, 9 with SCR9, 10 to a single phase bridge circuit of SCR1, 6, 9, 10 to thus control the single phase for the DC dynamic braking operation.
COPYRIGHT: (C)1980,JPO&Japio
JP7570578A 1978-06-22 1978-06-22 Induction motor controller Pending JPS555017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7570578A JPS555017A (en) 1978-06-22 1978-06-22 Induction motor controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7570578A JPS555017A (en) 1978-06-22 1978-06-22 Induction motor controller

Publications (1)

Publication Number Publication Date
JPS555017A true JPS555017A (en) 1980-01-14

Family

ID=13583893

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7570578A Pending JPS555017A (en) 1978-06-22 1978-06-22 Induction motor controller

Country Status (1)

Country Link
JP (1) JPS555017A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57184868A (en) * 1981-05-06 1982-11-13 Mitsubishi Heavy Ind Ltd Method of removing frost of heat pump
JPS594581A (en) * 1982-06-28 1984-01-11 三菱電機株式会社 Controller for speed of alternating current elevator
JPS61171498U (en) * 1985-04-13 1986-10-24
US5544493A (en) * 1993-07-07 1996-08-13 Nippondenso Co., Ltd. Air-conditioning device for electric automobiles
US6679321B2 (en) 2001-08-31 2004-01-20 Keum Su Jin Heat pump system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57184868A (en) * 1981-05-06 1982-11-13 Mitsubishi Heavy Ind Ltd Method of removing frost of heat pump
JPS594581A (en) * 1982-06-28 1984-01-11 三菱電機株式会社 Controller for speed of alternating current elevator
JPS61171498U (en) * 1985-04-13 1986-10-24
US5544493A (en) * 1993-07-07 1996-08-13 Nippondenso Co., Ltd. Air-conditioning device for electric automobiles
US5664429A (en) * 1993-07-07 1997-09-09 Nippondenso Co., Ltd. Air-conditioning device for electric automobiles
US6679321B2 (en) 2001-08-31 2004-01-20 Keum Su Jin Heat pump system

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