GB1209177A - Method of electronic speed regulation of alternating-current motors - Google Patents
Method of electronic speed regulation of alternating-current motorsInfo
- Publication number
- GB1209177A GB1209177A GB4803467A GB4803467A GB1209177A GB 1209177 A GB1209177 A GB 1209177A GB 4803467 A GB4803467 A GB 4803467A GB 4803467 A GB4803467 A GB 4803467A GB 1209177 A GB1209177 A GB 1209177A
- Authority
- GB
- United Kingdom
- Prior art keywords
- speed
- switch
- time
- oct
- measured
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/10—Commutator motors, e.g. repulsion motors
Abstract
1,209,177. Automatic control of speed. HOLZER PATENT A.G. Oct.23, 1967 [Oct. 25, 1966; Jan.28, 1967] No.48034/67. Heading G3R. [Also in Division H2] The speed of an A.C. motor is controlled by a system in which the supply is electronically switched off when a predetermined speed n2 is reached and is switched on again at the expiry of a time determined by a timer. As shown, the switch-on occurs at fixed intervals too, regardless of the instant of switch-off, and is determined by a transistor astable multivibrator Fig. 7 (not shown), but in an alternative system Fig.4 (not shown), the time to is measured from the switchoff point, by the use of a mono-stable multi-vibrator Fig. 8 (not shown), which is triggered to its unstable condition by the switch-off signal. In both cases the speed is measured by a tachogenerator whose output is converted to a voltage (if not already in voltage form), a proportion of which is selected by a speed setting potentiometer. The electronic switch is a triac or thyristor circuit and its gating is synchronized with supply current zero. It is stated that the "off" time may be made subject to the load current.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH0060846 | 1966-10-25 | ||
| DEH0061693 | 1967-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1209177A true GB1209177A (en) | 1970-10-21 |
Family
ID=25980530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4803467A Expired GB1209177A (en) | 1966-10-25 | 1967-10-23 | Method of electronic speed regulation of alternating-current motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1209177A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1601087A2 (en) * | 2004-05-24 | 2005-11-30 | Tomy Company, Ltd. | Electric motor drive unit and actuating device |
-
1967
- 1967-10-23 GB GB4803467A patent/GB1209177A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1601087A2 (en) * | 2004-05-24 | 2005-11-30 | Tomy Company, Ltd. | Electric motor drive unit and actuating device |
| EP1601087A3 (en) * | 2004-05-24 | 2009-01-07 | Tomy Company, Ltd. | Electric motor drive unit and actuating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |