GB821279A - Improvements in or relating to the supply of electrical energy in controlled amounts - Google Patents
Improvements in or relating to the supply of electrical energy in controlled amountsInfo
- Publication number
- GB821279A GB821279A GB15588/57A GB1558857A GB821279A GB 821279 A GB821279 A GB 821279A GB 15588/57 A GB15588/57 A GB 15588/57A GB 1558857 A GB1558857 A GB 1558857A GB 821279 A GB821279 A GB 821279A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- proportional
- energy
- load
- supply
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/04—Sources of current
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Ac-Ac Conversion (AREA)
Abstract
821,279. Control systems for high-frequency heat treating processes. UGINE-INFRA. May 16, 1957 [May 17, 1956], No. 15588/57. Class 38 (4). An electrical control system for controlling the amount of electrical energy supplied to a load comprises apparatus for continuously deriving an instantaneous voltage which is proportional to the instantaneous rate of supply of energy; integrating this voltage to obtain a voltage proportional to the amount of energy supplied and utilizing this integrated voltage to operate a switch to remove the supply when the desired amount of energy has been supplied. The energy supplied by a source 6 to a load 7 is controlled by two valve amplifiers 2, 3, the voltage gains of which are proportional to the volt drops across resistors 4, 5 respectively, that is the voltage across, and the current taken by, the load 7. The voltage so derived appears across the resistor 10 and is proportional to the instantaneous delivery of power. A condenser 12 is charged from a source 14 under the control of a control device 13 which is itself under the control of the voltage across the resistor 10. The voltage which appears across the condenser 12 is thus proportional to the amount of energy supplied to the load 7 and this voltage is arranged to operate an inertia-less switching arrangement to cut off the supply to the source 6 when the desired amount of energy has been supplied to the load 7.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1150623T | 1956-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB821279A true GB821279A (en) | 1959-10-07 |
Family
ID=9647473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15588/57A Expired GB821279A (en) | 1956-05-17 | 1957-05-16 | Improvements in or relating to the supply of electrical energy in controlled amounts |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE557515A (en) |
| CH (1) | CH353823A (en) |
| FR (1) | FR1150623A (en) |
| GB (1) | GB821279A (en) |
-
0
- BE BE557515D patent/BE557515A/xx unknown
-
1956
- 1956-05-17 FR FR1150623D patent/FR1150623A/en not_active Expired
-
1957
- 1957-05-15 CH CH353823D patent/CH353823A/en unknown
- 1957-05-16 GB GB15588/57A patent/GB821279A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH353823A (en) | 1961-04-30 |
| FR1150623A (en) | 1958-01-16 |
| BE557515A (en) |
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