GB637938A - Improvements in or relating to systems comprising electromagnetic vibratory inverters - Google Patents
Improvements in or relating to systems comprising electromagnetic vibratory invertersInfo
- Publication number
- GB637938A GB637938A GB225348A GB225348A GB637938A GB 637938 A GB637938 A GB 637938A GB 225348 A GB225348 A GB 225348A GB 225348 A GB225348 A GB 225348A GB 637938 A GB637938 A GB 637938A
- Authority
- GB
- United Kingdom
- Prior art keywords
- series
- transformer
- primary
- resonant circuit
- auxiliary transformer
- 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)
- Inverter Devices (AREA)
Abstract
637,938. Converting. ERICSSON TELEPHONES, Ltd., and HOPWOOD, F. W. Jan. 26, 1948, No. 2253. [Class 38 (ii)] In order to reduce sparking between contacts VB1, VB2 of an electromagnetic interrupter used for converting D.C. to A.C., a seriesresonant circuit comprising a capacitor C, and inductances LC and LS having linear and non- linear characteristics respectively is in series with the A.C. portion either directly or through a transformer. The inductance LS can be made by winding a coil on a core of suitable grain orientated nickel-iron alloy having rectangular saturation characteristics. The form of the resultant current wave is such that the make-and-break current at the interrupter contacts VB1, VB2 is effectively limited. In a modification, the series-resonant circuit is connected to the secondary of an auxiliary transformer, the primary of which is in series with the primary of the first transformer. In another modification, the series-resonant circuit, the primary of an auxiliary transformer, and the secondary of the first transformer are in series, while the load R is across the secondary of the auxiliary transformer. In a further modification, the series-resonant circuit is connected to the secondary of an auxiliary transformer, the primary of which, the secondary of the first transformer and the load resistor R are in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB225348A GB637938A (en) | 1948-01-26 | 1948-01-26 | Improvements in or relating to systems comprising electromagnetic vibratory inverters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB225348A GB637938A (en) | 1948-01-26 | 1948-01-26 | Improvements in or relating to systems comprising electromagnetic vibratory inverters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB637938A true GB637938A (en) | 1950-05-31 |
Family
ID=9736299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB225348A Expired GB637938A (en) | 1948-01-26 | 1948-01-26 | Improvements in or relating to systems comprising electromagnetic vibratory inverters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB637938A (en) |
-
1948
- 1948-01-26 GB GB225348A patent/GB637938A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2406045A (en) | Inductance device | |
| GB661053A (en) | Improvements in and relating to saturable reactor magnetic amplifiers | |
| GB729206A (en) | Electronic character selecting and/or printing apparatus | |
| GB1006095A (en) | Keying devices, particularly for electrical musical instruments | |
| GB964603A (en) | Improvements in or relating to transformers | |
| GB948241A (en) | A circuit arrangement including a telephone instrument | |
| GB637938A (en) | Improvements in or relating to systems comprising electromagnetic vibratory inverters | |
| US2645746A (en) | High-frequency transformer for the transmission of electric impulses | |
| GB616932A (en) | Improvements in tuned circuits and inductances therefor | |
| GB711325A (en) | Improvements in and relating to magnetic deflection systems for cathode ray tubes | |
| US3227921A (en) | Circuit for fluorescent discharge lamp including saturable reactors | |
| GB1516158A (en) | Inductive reactance circuit | |
| GB1015544A (en) | Improvements in ceramic ferromgnetic cores for inductors and transformers | |
| GB939451A (en) | Improvements in or relating to a deflection transformer in, or for, a television receiver | |
| GB651257A (en) | Improvements in or relating to circuit-arrangements for producing sawtooth current in an inductance coil | |
| GB1072974A (en) | Improvements in or relating to electric circuit arrangements including inductive elements | |
| GB851814A (en) | Improvements in or relating to inductances | |
| JPH0119381Y2 (en) | ||
| SU365021A1 (en) | ||
| JP2883466B2 (en) | Pulse generator | |
| GB661340A (en) | Improvements in and relating to electric transformers | |
| GB501141A (en) | Improvements in or relating to electrical transformer arrangements | |
| GB944794A (en) | Multi-aperture magnetic core switch circuit | |
| SU42A1 (en) | Device for amplifying microphone current using self-induction | |
| SU834831A1 (en) | Push-pull generator |