JPS6474086A - Forward and reverse device of dc small motor - Google Patents
Forward and reverse device of dc small motorInfo
- Publication number
- JPS6474086A JPS6474086A JP62226818A JP22681887A JPS6474086A JP S6474086 A JPS6474086 A JP S6474086A JP 62226818 A JP62226818 A JP 62226818A JP 22681887 A JP22681887 A JP 22681887A JP S6474086 A JPS6474086 A JP S6474086A
- Authority
- JP
- Japan
- Prior art keywords
- reverse
- comparator
- transistors
- motor
- output
- 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
- Control Of Direct Current Motors (AREA)
Abstract
PURPOSE:To make it possible to perform a forward and reverse function and a speed control function by low voltage and low power consumption by connecting the output of a comparator for forward and a comparator for reverse to an earth selectively. CONSTITUTION:When a switch 3 for forward and reverse is set to the A side, the transistors 19 and 20 are turned off, and 24 and 25 of them are turned on. Accordingly, the current in the forward direction is supplied to a DC motor 14 through the transistors 16 and 26. At this time, a bridge circuit is constituted of the DC motor 14 and the resistors 6, 7 and 8. A comparator 5 controls the transistors 16 and 26 according to a deviation of output of the bridge circuit from reference voltage. When the switch 3 for forward and reverse is set to the B side, the current in the reverse direction is supplied to the DC motor 14 through the transistors 15 and 21. At this time, a comparator 4 controls the transistor 15 and 21 according to output of the bridge circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62226818A JP2629199B2 (en) | 1987-09-10 | 1987-09-10 | Forward and reverse rotation device for DC motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62226818A JP2629199B2 (en) | 1987-09-10 | 1987-09-10 | Forward and reverse rotation device for DC motor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6474086A true JPS6474086A (en) | 1989-03-20 |
JP2629199B2 JP2629199B2 (en) | 1997-07-09 |
Family
ID=16851079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62226818A Expired - Fee Related JP2629199B2 (en) | 1987-09-10 | 1987-09-10 | Forward and reverse rotation device for DC motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2629199B2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5858887A (en) * | 1981-09-30 | 1983-04-07 | Nec Corp | Motor speed regulator |
JPS59103599U (en) * | 1982-12-25 | 1984-07-12 | 株式会社日本コインコ | Output adjustment circuit for small DC motor |
-
1987
- 1987-09-10 JP JP62226818A patent/JP2629199B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5858887A (en) * | 1981-09-30 | 1983-04-07 | Nec Corp | Motor speed regulator |
JPS59103599U (en) * | 1982-12-25 | 1984-07-12 | 株式会社日本コインコ | Output adjustment circuit for small DC motor |
Also Published As
Publication number | Publication date |
---|---|
JP2629199B2 (en) | 1997-07-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |