JPS5475520A - Operation detecting circuit of step motor - Google Patents
Operation detecting circuit of step motorInfo
- Publication number
- JPS5475520A JPS5475520A JP14417277A JP14417277A JPS5475520A JP S5475520 A JPS5475520 A JP S5475520A JP 14417277 A JP14417277 A JP 14417277A JP 14417277 A JP14417277 A JP 14417277A JP S5475520 A JPS5475520 A JP S5475520A
- Authority
- JP
- Japan
- Prior art keywords
- step motor
- revolution
- current
- coil
- resistance
- 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
- Electromechanical Clocks (AREA)
- Control Of Stepping Motors (AREA)
Abstract
PURPOSE:To detect revolution or no revolution of a step motor, by connecting impedance element to coil of step motor, and making detecting part to be operated by induced voltage which is generated at both ends of the element after breaking of driving pulse. CONSTITUTION:P shape and N shape MOS.FET gates 10-13 compose an inverter, the output is connected to coil 3 of a step motor, and at the same time, are connected to detecting resistance 16 through gates 14, 15, and output wave shape is detected by two value theoretical element 17 which has a specified gate value. Therefore, electric current which is currented in coil 3 is controlled with induced voltage after breaking of driving pulse such that the electric current is divided into two group channels of current that currents in the resistance 16 and current which does not current in the resistance 16, then two value theoretical element 17 is made to be operated, and revolution or no revolution can be surely detected by existence of the peak of the output wave shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14417277A JPS5475520A (en) | 1977-11-30 | 1977-11-30 | Operation detecting circuit of step motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14417277A JPS5475520A (en) | 1977-11-30 | 1977-11-30 | Operation detecting circuit of step motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5475520A true JPS5475520A (en) | 1979-06-16 |
| JPS5718440B2 JPS5718440B2 (en) | 1982-04-16 |
Family
ID=15355871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14417277A Granted JPS5475520A (en) | 1977-11-30 | 1977-11-30 | Operation detecting circuit of step motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5475520A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57148592A (en) * | 1981-02-04 | 1982-09-13 | Berney Sa Jean Claude | Stepping motor controller |
| JPS5819584A (en) * | 1981-07-27 | 1983-02-04 | Seiko Epson Corp | How to determine the rotor position of an analog electronic clock |
| JPS5947998A (en) * | 1982-08-04 | 1984-03-17 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | Method and circuit for analyzing induced voltage of excitingcoil for step motor |
| US4912689A (en) * | 1988-05-07 | 1990-03-27 | Seiko Epson Corporation | Compensating circuitry for an electronic watch |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0416972U (en) * | 1990-04-02 | 1992-02-12 | ||
| JP4800787B2 (en) * | 2006-02-15 | 2011-10-26 | セイコーインスツル株式会社 | Step motor drive circuit and analog electronic timepiece |
-
1977
- 1977-11-30 JP JP14417277A patent/JPS5475520A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57148592A (en) * | 1981-02-04 | 1982-09-13 | Berney Sa Jean Claude | Stepping motor controller |
| JPS5819584A (en) * | 1981-07-27 | 1983-02-04 | Seiko Epson Corp | How to determine the rotor position of an analog electronic clock |
| JPH0142396B2 (en) * | 1981-07-27 | 1989-09-12 | Seiko Epson Corp | |
| JPS5947998A (en) * | 1982-08-04 | 1984-03-17 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | Method and circuit for analyzing induced voltage of excitingcoil for step motor |
| US4912689A (en) * | 1988-05-07 | 1990-03-27 | Seiko Epson Corporation | Compensating circuitry for an electronic watch |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5718440B2 (en) | 1982-04-16 |
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