JPS52139919A - Speed controller for miniature dc motor - Google Patents

Speed controller for miniature dc motor

Info

Publication number
JPS52139919A
JPS52139919A JP5738976A JP5738976A JPS52139919A JP S52139919 A JPS52139919 A JP S52139919A JP 5738976 A JP5738976 A JP 5738976A JP 5738976 A JP5738976 A JP 5738976A JP S52139919 A JPS52139919 A JP S52139919A
Authority
JP
Japan
Prior art keywords
miniature
motor
speed controller
voltage
switching transistor
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.)
Granted
Application number
JP5738976A
Other languages
Japanese (ja)
Other versions
JPS602877B2 (en
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 JP51057389A priority Critical patent/JPS602877B2/en
Publication of JPS52139919A publication Critical patent/JPS52139919A/en
Publication of JPS602877B2 publication Critical patent/JPS602877B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Motor And Converter Starters (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE: To reduce the number of parts and eliminate the loss current by using the voltage between the base and the emitter of a starting switching transistor as a reference voltage and using a resistor connected to the collector of the starting switching transistor as a compensation resistor for voltage characteristics.
COPYRIGHT: (C)1977,JPO&Japio
JP51057389A 1976-05-18 1976-05-18 Small DC motor speed control device Expired JPS602877B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51057389A JPS602877B2 (en) 1976-05-18 1976-05-18 Small DC motor speed control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51057389A JPS602877B2 (en) 1976-05-18 1976-05-18 Small DC motor speed control device

Publications (2)

Publication Number Publication Date
JPS52139919A true JPS52139919A (en) 1977-11-22
JPS602877B2 JPS602877B2 (en) 1985-01-24

Family

ID=13054249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51057389A Expired JPS602877B2 (en) 1976-05-18 1976-05-18 Small DC motor speed control device

Country Status (1)

Country Link
JP (1) JPS602877B2 (en)

Also Published As

Publication number Publication date
JPS602877B2 (en) 1985-01-24

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