JPS6412891A - Control device of dc motor - Google Patents
Control device of dc motorInfo
- Publication number
- JPS6412891A JPS6412891A JP62165192A JP16519287A JPS6412891A JP S6412891 A JPS6412891 A JP S6412891A JP 62165192 A JP62165192 A JP 62165192A JP 16519287 A JP16519287 A JP 16519287A JP S6412891 A JPS6412891 A JP S6412891A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- motor
- armature
- speed
- differential
- 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
Links
Landscapes
- Control Of Direct Current Motors (AREA)
Abstract
PURPOSE:To make it possible to control with high accuracy even if a speed motor is not provided by obtaining the voltage proportionate to the speed of a motor based on the terminal voltage of the motor and the voltage equivalent to the voltage drop of the inside of an armature. CONSTITUTION:The collector voltage of a transistor Q is equalized by a filter circuit 9, and a mean value E1 of the armature voltage is obtained. And, the voltage drop of the resistor R1 inserted into an armature 5 in series is equalized by a filter circuit 10 to obtain the voltage equivalent to the voltage drop IR of the inside of the armature. Then, the differential voltage between voltage E1 and IR is obtained by a differential amplifier 11, and the voltage proportionate to the speed of a DC motor is obtained. A comparator 2 compares the output voltage of the differential amplifier 11 with the reference voltage set by a speed setting 1, and the differential voltage is outputted to a pulse amplitude modulation type control device 7.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62165192A JPS6412891A (en) | 1987-07-03 | 1987-07-03 | Control device of dc motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62165192A JPS6412891A (en) | 1987-07-03 | 1987-07-03 | Control device of dc motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6412891A true JPS6412891A (en) | 1989-01-17 |
Family
ID=15807586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62165192A Pending JPS6412891A (en) | 1987-07-03 | 1987-07-03 | Control device of dc motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6412891A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03103545A (en) * | 1989-09-14 | 1991-04-30 | Shimizu Corp | Skeleton construction method |
JPH03103550A (en) * | 1989-09-18 | 1991-04-30 | Shimizu Corp | Skeleton construction method |
JPH03103547A (en) * | 1989-09-14 | 1991-04-30 | Shimizu Corp | Skeleton construction method |
JPH03117399U (en) * | 1990-03-13 | 1991-12-04 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5915292B2 (en) * | 1980-03-13 | 1984-04-09 | 日立造船株式会社 | pipe manufacturing equipment |
JPS6146187A (en) * | 1984-08-10 | 1986-03-06 | Hitachi Koki Co Ltd | Speed controller of dc motor |
-
1987
- 1987-07-03 JP JP62165192A patent/JPS6412891A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5915292B2 (en) * | 1980-03-13 | 1984-04-09 | 日立造船株式会社 | pipe manufacturing equipment |
JPS6146187A (en) * | 1984-08-10 | 1986-03-06 | Hitachi Koki Co Ltd | Speed controller of dc motor |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03103545A (en) * | 1989-09-14 | 1991-04-30 | Shimizu Corp | Skeleton construction method |
JPH03103547A (en) * | 1989-09-14 | 1991-04-30 | Shimizu Corp | Skeleton construction method |
JPH03103550A (en) * | 1989-09-18 | 1991-04-30 | Shimizu Corp | Skeleton construction method |
JPH03117399U (en) * | 1990-03-13 | 1991-12-04 |
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