JPS55127890A - Method for compensating temperature in speed-control for compact dc motor - Google Patents
Method for compensating temperature in speed-control for compact dc motorInfo
- Publication number
- JPS55127890A JPS55127890A JP3440279A JP3440279A JPS55127890A JP S55127890 A JPS55127890 A JP S55127890A JP 3440279 A JP3440279 A JP 3440279A JP 3440279 A JP3440279 A JP 3440279A JP S55127890 A JPS55127890 A JP S55127890A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- motor
- speed
- control
- resistor
- 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 keep the rotation speed constant against the variation of ambient temperature by combining the temperature coefficient of a resistor connected between the terminals of the IC in a control device having an IC for controlling the speed of a three-terminal-type DC motor and the termperature coefficient of a resistor connected between a terminal and a power-supply terminal, based on a specified principle.
CONSTITUTION: In a control device having an IC4 for controlling the speed of a three-terminal-type DC motor, the temperature coefficient of a resistor 2 connected between terminals (1) and (2) of the control IC4 and the temperature coefficient of a resistor 1 connected between the terminal 1 and a power-supply positive terminal are suitably selected and combined based on the principle shown by the equation in the figure. In order to obtain the combination of the temperature coefficients of the resistors 1 and 2 by the equation in the formula, measured value of the temperature coefficient of the generating factor of a DC motor 3 under control, the measured value of counter emf Em, and the values of resistors Rt and Rs are subtituted in the equation. In this way, the reliability of the control device can be enhanced with a smaller number of parts.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3440279A JPS55127890A (en) | 1979-03-26 | 1979-03-26 | Method for compensating temperature in speed-control for compact dc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3440279A JPS55127890A (en) | 1979-03-26 | 1979-03-26 | Method for compensating temperature in speed-control for compact dc motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55127890A true JPS55127890A (en) | 1980-10-03 |
Family
ID=12413185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3440279A Pending JPS55127890A (en) | 1979-03-26 | 1979-03-26 | Method for compensating temperature in speed-control for compact dc motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55127890A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58207890A (en) * | 1982-05-26 | 1983-12-03 | Matsushita Electric Ind Co Ltd | Speed controller for dc motor |
| JPS58207891A (en) * | 1982-05-26 | 1983-12-03 | Matsushita Electric Ind Co Ltd | Speed controller for dc motor |
-
1979
- 1979-03-26 JP JP3440279A patent/JPS55127890A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58207890A (en) * | 1982-05-26 | 1983-12-03 | Matsushita Electric Ind Co Ltd | Speed controller for dc motor |
| JPS58207891A (en) * | 1982-05-26 | 1983-12-03 | Matsushita Electric Ind Co Ltd | Speed controller for dc motor |
| JPH0125318B2 (en) * | 1982-05-26 | 1989-05-17 | Matsushita Electric Ind Co Ltd |
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