JPS62118791A - Controller for motor - Google Patents

Controller for motor

Info

Publication number
JPS62118791A
JPS62118791A JP60258057A JP25805785A JPS62118791A JP S62118791 A JPS62118791 A JP S62118791A JP 60258057 A JP60258057 A JP 60258057A JP 25805785 A JP25805785 A JP 25805785A JP S62118791 A JPS62118791 A JP S62118791A
Authority
JP
Japan
Prior art keywords
motor
temperature
speed
becomes
switching element
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
JP60258057A
Other languages
Japanese (ja)
Inventor
Hiroyuki Nunokawa
Masahiko Ikemori
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP60258057A priority Critical patent/JPS62118791A/en
Publication of JPS62118791A publication Critical patent/JPS62118791A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To maintain the operation of an apparatus which uses a motor even when temperature rises by maintaining the operation of the motor by reducing the rotating speed of the motor to a predetermined speed when the temperature of a switching element abnormally rises.
CONSTITUTION: If the temperature of a switching element of an inverter 7 rises so that the output of a comparator 29 of a protecting circuit 24 becomes H level voltage when operating at a high speed, a switching transistor 13 becomes OFF, a voltage to a terminal K4 is interrupted, and a motor 8 comes into a similar state to that when the motor is set to an intermediate speed to rotate at the intermediate speed. Thereafter, when the temperature of the switching element drops so that the output of the comparator 29 becomes L level voltage, a voltage is again applied to the terminal K4 of a microprocessor 19 to restart the operating at the high speed.
COPYRIGHT: (C)1987,JPO&Japio
JP60258057A 1985-11-18 1985-11-18 Controller for motor Pending JPS62118791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60258057A JPS62118791A (en) 1985-11-18 1985-11-18 Controller for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60258057A JPS62118791A (en) 1985-11-18 1985-11-18 Controller for motor

Publications (1)

Publication Number Publication Date
JPS62118791A true JPS62118791A (en) 1987-05-30

Family

ID=17314935

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60258057A Pending JPS62118791A (en) 1985-11-18 1985-11-18 Controller for motor

Country Status (1)

Country Link
JP (1) JPS62118791A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6387179A (en) * 1986-09-29 1988-04-18 Sawafuji Electric Co Ltd Power source device
JPH03500358A (en) * 1987-09-15 1991-01-24
EP0449153A2 (en) * 1990-03-29 1991-10-02 Grundfos International A/S Pump unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS579273A (en) * 1980-06-17 1982-01-18 Toshiba Corp Power converter
JPS59175382A (en) * 1983-03-23 1984-10-04 Toshiba Corp Pam type inverter device
JPS60121991A (en) * 1983-12-02 1985-06-29 Mitsubishi Electric Corp Inverter controlled air conditioner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS579273A (en) * 1980-06-17 1982-01-18 Toshiba Corp Power converter
JPS59175382A (en) * 1983-03-23 1984-10-04 Toshiba Corp Pam type inverter device
JPS60121991A (en) * 1983-12-02 1985-06-29 Mitsubishi Electric Corp Inverter controlled air conditioner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6387179A (en) * 1986-09-29 1988-04-18 Sawafuji Electric Co Ltd Power source device
JPH03500358A (en) * 1987-09-15 1991-01-24
EP0449153A2 (en) * 1990-03-29 1991-10-02 Grundfos International A/S Pump unit
EP0449153A3 (en) * 1990-03-29 1992-08-26 Grundfos International A/S Pump unit

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