JPS52139919A - Speed controller for miniature dc motor - Google Patents
Speed controller for miniature dc motorInfo
- 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
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
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) |
-
1976
- 1976-05-18 JP JP51057389A patent/JPS602877B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS602877B2 (en) | 1985-01-24 |
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