JPS5683296A - Detector of operation of motor for clock - Google Patents
Detector of operation of motor for clockInfo
- Publication number
- JPS5683296A JPS5683296A JP15966479A JP15966479A JPS5683296A JP S5683296 A JPS5683296 A JP S5683296A JP 15966479 A JP15966479 A JP 15966479A JP 15966479 A JP15966479 A JP 15966479A JP S5683296 A JPS5683296 A JP S5683296A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- motor
- operating
- clock
- comparator
- 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
- 239000003990 capacitor Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
- G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Stepping Motors (AREA)
- Electromechanical Clocks (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE:To detect the operating conditions with a simple construction by a method wherein a reference voltage at a certain level and the voltage at which a motor is operated to detect the operating conditions of the motor from the differece in voltages. CONSTITUTION:The oscillation output of a quartz oscillator 2 is converted into a certain pulse current by a clock IC 1. The output pulse of the clock UC 1 is supplied to the base of a switching transistor Q1 in a motor driving coil 3a via a capacitor C1. In a comparator 4, the voltage VB is a reference voltage. Althrough the part A of the voltage VB may become greater than the voltage VE as shown in Fig. (a) when operating rotor 3c, the level of the voltage VE rises, reducing the degree of steepness, when the rotor 3 shown in Fig. (b) is being stopped at c, thus eliminating the part A. Hence, the operating condiction can be detected by checking whether or not there is the part A. In other words, a transistor Q2 in the comparator 4 is turned on and off according to the size relation between VB and VE, so that the rotational state is detected according to the operation of an operating circuit 5 that has received a judging signal VS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54159664A JPS5833798B2 (en) | 1979-12-07 | 1979-12-07 | Clock motor motion detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54159664A JPS5833798B2 (en) | 1979-12-07 | 1979-12-07 | Clock motor motion detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5683296A true JPS5683296A (en) | 1981-07-07 |
| JPS5833798B2 JPS5833798B2 (en) | 1983-07-22 |
Family
ID=15698635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54159664A Expired JPS5833798B2 (en) | 1979-12-07 | 1979-12-07 | Clock motor motion detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5833798B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4611154A (en) * | 1985-03-28 | 1986-09-09 | Gulf & Western Manufacturing Company | Method and apparatus for controlling the operation of a DC load |
| US4628235A (en) * | 1985-09-19 | 1986-12-09 | Gulf & Western Manufacturing Company | Control circuit for motor driver |
-
1979
- 1979-12-07 JP JP54159664A patent/JPS5833798B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4611154A (en) * | 1985-03-28 | 1986-09-09 | Gulf & Western Manufacturing Company | Method and apparatus for controlling the operation of a DC load |
| US4628235A (en) * | 1985-09-19 | 1986-12-09 | Gulf & Western Manufacturing Company | Control circuit for motor driver |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5833798B2 (en) | 1983-07-22 |
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