JPS5329520A - Speed control device ofr a.c. motor - Google Patents

Speed control device ofr a.c. motor

Info

Publication number
JPS5329520A
JPS5329520A JP10479476A JP10479476A JPS5329520A JP S5329520 A JPS5329520 A JP S5329520A JP 10479476 A JP10479476 A JP 10479476A JP 10479476 A JP10479476 A JP 10479476A JP S5329520 A JPS5329520 A JP S5329520A
Authority
JP
Japan
Prior art keywords
motor
ofr
control device
speed control
signal
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
JP10479476A
Other languages
Japanese (ja)
Inventor
Hiroshi Mizuguchi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP10479476A priority Critical patent/JPS5329520A/en
Priority to US05/808,289 priority patent/US4149116A/en
Publication of JPS5329520A publication Critical patent/JPS5329520A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To make it possible to actuate a motor of large capacity with the use of small capacity power transistors, by comparing the signal from a rotating speed detector with the signal from a saw tooth wave generating circuit to perform switching operation of a power transistor for actuating the motor.
JP10479476A 1976-06-23 1976-08-31 Speed control device ofr a.c. motor Pending JPS5329520A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10479476A JPS5329520A (en) 1976-08-31 1976-08-31 Speed control device ofr a.c. motor
US05/808,289 US4149116A (en) 1976-06-23 1977-06-20 Motor speed control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10479476A JPS5329520A (en) 1976-08-31 1976-08-31 Speed control device ofr a.c. motor

Publications (1)

Publication Number Publication Date
JPS5329520A true JPS5329520A (en) 1978-03-18

Family

ID=14390344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10479476A Pending JPS5329520A (en) 1976-06-23 1976-08-31 Speed control device ofr a.c. motor

Country Status (1)

Country Link
JP (1) JPS5329520A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59116680A (en) * 1982-12-23 1984-07-05 株式会社精工舎 Color display

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4925131A (en) * 1972-06-09 1974-03-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4925131A (en) * 1972-06-09 1974-03-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59116680A (en) * 1982-12-23 1984-07-05 株式会社精工舎 Color display

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees