GB527806A - Improvements in apparatus adapted to be supplied by a vibrator from a direct current supply - Google Patents
Improvements in apparatus adapted to be supplied by a vibrator from a direct current supplyInfo
- Publication number
- GB527806A GB527806A GB11955/39A GB1195539A GB527806A GB 527806 A GB527806 A GB 527806A GB 11955/39 A GB11955/39 A GB 11955/39A GB 1195539 A GB1195539 A GB 1195539A GB 527806 A GB527806 A GB 527806A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condenser
- transformer
- switch
- resistance
- april
- 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
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/54—Conversion of dc power input into ac power output without possibility of reversal by dynamic converters
- H02M7/58—Conversion of dc power input into ac power output without possibility of reversal by dynamic converters using mechanical contact-making and -breaking parts to interrupt a single potential
- H02M7/62—Conversion of dc power input into ac power output without possibility of reversal by dynamic converters using mechanical contact-making and -breaking parts to interrupt a single potential with electromagnetically-operated vibrating contacts, e.g. chopper
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
527,806. Commutator switching arrangements. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 20, 1939, No. 11955. Convention date, April 23, 1938. [Class 38 (ii)] A commutator switching arrangement for deriving A.C. from D.C. comprising a vibratory switch and transformer has a condenser and resistance of particular values connected in series across the switch contacts. The operating coil 13, Fig. 1, is also connected across the switch contact 11 through a resistance 15. A high-frequency filter arrangement comprising a resistance 18 and condenser 19 is associated with the switch contacts. This arrangement enables the A.C. apparatus 2 with its associated transformer 3 to be converted to D.C. use by switching involving one transformer lead only. The transformer 3 is preferably so dimensioned that it becomes periodically highly saturated on D.C. working so that when the switch is open and the decaying magnetic field charges the condenser 16 through resistances 17 it causes a reversed E.M.F. in the primary of the transformer at least equal to the applied D.C. voltage. In order to reduce the excitation current of the operating coil 13, a condenser 14 is connected in parallel with it, the value of the condenser being such that the oscillatory circuit thus formed corresponds to the natural frequency of the vibrating member 10.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL527806X | 1938-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB527806A true GB527806A (en) | 1940-10-16 |
Family
ID=19787093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11955/39A Expired GB527806A (en) | 1938-04-23 | 1939-04-20 | Improvements in apparatus adapted to be supplied by a vibrator from a direct current supply |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB527806A (en) |
-
1939
- 1939-04-20 GB GB11955/39A patent/GB527806A/en not_active Expired
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