JPS62107689A - Starter for dc motor - Google Patents

Starter for dc motor

Info

Publication number
JPS62107689A
JPS62107689A JP24696485A JP24696485A JPS62107689A JP S62107689 A JPS62107689 A JP S62107689A JP 24696485 A JP24696485 A JP 24696485A JP 24696485 A JP24696485 A JP 24696485A JP S62107689 A JPS62107689 A JP S62107689A
Authority
JP
Japan
Prior art keywords
motor
voltage
pwm
current
discriminator
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
JP24696485A
Other languages
Japanese (ja)
Inventor
Takuo Itami
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
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 filed Critical Toshiba Corp
Priority to JP24696485A priority Critical patent/JPS62107689A/en
Publication of JPS62107689A publication Critical patent/JPS62107689A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a driving unit for a DC motor having high reliability by PWM-controlling a stepdown chopper having a self-extinguishing type switching element and a flywheel diode in response to the current of the motor to accelerate it.
CONSTITUTION: When an operation command is applied, a signal (a) becomes '1'. At this time, the difference of the voltage between a motor 2 and a power source 1 is larger than the set value, and the outputs (b), (c) of a discriminator 8 become '0', '1'. Accordingly, a PWM controller 12 starts operating, and the motor 2 is limited to be accelerated by an allowable current by the current control. When a speed N increases to increase the voltage of a motor and the voltage difference becomes smaller than the set value of the discriminator 8, the logic values of the signals (b), (c) are inverted to stop the PWM control and to close a switch 4a, thereby completing the starting. Thus, since the motor can be accelerated by the allowable current value, the starting time can be shortened, and a mechanical shock can be eliminated.
COPYRIGHT: (C)1987,JPO&Japio
JP24696485A 1985-11-06 1985-11-06 Starter for dc motor Pending JPS62107689A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24696485A JPS62107689A (en) 1985-11-06 1985-11-06 Starter for dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24696485A JPS62107689A (en) 1985-11-06 1985-11-06 Starter for dc motor

Publications (1)

Publication Number Publication Date
JPS62107689A true JPS62107689A (en) 1987-05-19

Family

ID=17156339

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24696485A Pending JPS62107689A (en) 1985-11-06 1985-11-06 Starter for dc motor

Country Status (1)

Country Link
JP (1) JPS62107689A (en)

Similar Documents

Publication Publication Date Title
JPS62107689A (en) Starter for dc motor
JPS6074999A (en) Control system for engine driven generator
JPS6317145A (en) Controller for automobile by microcomputer
JPS605786A (en) Inverter for driving motor
JPS6074998A (en) Control system for engine drive generator
JPS6126500A (en) Integrated starter generator
JPS61280778A (en) Motor controlling method
JPS63167698A (en) Operation controller for refrigerator
JPS59117471A (en) Operation control system for current type inverter
SU1548827A1 (en) Device for disconnection of frequency converter
JPS61102196A (en) Circuit for controlling drive of step motor
JPH01103194A (en) Controller for voltage type inverter
JPS55125093A (en) Controlling device for dc motor
JPS63198592A (en) Control of commutatorless motor
JPS58212393A (en) Driving method for dc motor and pulse motor
JPS57153596A (en) Normal and reverse operating method for induction motor by voltage type inverter
JPS6181102A (en) Controller for electric railcar
JPS6118389A (en) Control system of commutatorless motor
JPS58212380A (en) Control system for ac motor
JPS60109786A (en) Switching system of inverter for motor
JPS58172978A (en) Inverter device
JPS58139694A (en) Low speed operating circuit for motor
JPH04210793A (en) Charging tool
JPS61112587A (en) Field controller of dc motor
JPS5910189A (en) Dc motor