GB897783A - Improvements in or relating to induction heating apparatus - Google Patents

Improvements in or relating to induction heating apparatus

Info

Publication number
GB897783A
GB897783A GB4148458A GB4148458A GB897783A GB 897783 A GB897783 A GB 897783A GB 4148458 A GB4148458 A GB 4148458A GB 4148458 A GB4148458 A GB 4148458A GB 897783 A GB897783 A GB 897783A
Authority
GB
United Kingdom
Prior art keywords
oscillator
tank circuit
dec
relating
induction heating
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
Application number
GB4148458A
Inventor
David Eric Martin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB4148458A priority Critical patent/GB897783A/en
Publication of GB897783A publication Critical patent/GB897783A/en
Expired legal-status Critical Current

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)
  • General Induction Heating (AREA)

Abstract

897,783. Valve oscillating circuits; R.F. couplings. GENERAL ELECTRIC CO. Ltd. Dec. 16, 1959 [Dec. 23, 1958], No. 41484/58. Classes 40(6) and 40(7). An induction heater comprises a high frequency oscillation having a tuned tank circuit back coupled to the feedback network consisting of a divided capacitance, by a variable ratio transformer whereby to modify the voltage across the tank circuit and hence the RVA output of the oscillator. The oscillator is essentially a Colpitts oscillator having a tuned tank circuit 2 comprising a capacitor 4 and an inductor 3; the coupling to valve 1 being over the adjustable transformer 8, 9.
GB4148458A 1958-12-23 1958-12-23 Improvements in or relating to induction heating apparatus Expired GB897783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4148458A GB897783A (en) 1958-12-23 1958-12-23 Improvements in or relating to induction heating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4148458A GB897783A (en) 1958-12-23 1958-12-23 Improvements in or relating to induction heating apparatus

Publications (1)

Publication Number Publication Date
GB897783A true GB897783A (en) 1962-05-30

Family

ID=10419903

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4148458A Expired GB897783A (en) 1958-12-23 1958-12-23 Improvements in or relating to induction heating apparatus

Country Status (1)

Country Link
GB (1) GB897783A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651301A (en) * 1968-05-12 1972-03-21 Ncr Co Installation for casting microwire in glass insulation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651301A (en) * 1968-05-12 1972-03-21 Ncr Co Installation for casting microwire in glass insulation

Similar Documents

Publication Publication Date Title
JPS55140303A (en) Controllable oscillator
GB897783A (en) Improvements in or relating to induction heating apparatus
GB740417A (en) Improvements in or relating to high stability transistor oscillators
GB687602A (en) Improvements in or relating to oscillation-generators with automatic frequency-control
GB790932A (en) Improvements relating to transistor oscillator circuits
DE3162189D1 (en) Current controlled oscillator
GB895579A (en) Improvements in or relating to induction heating apparatus
JPS5681079A (en) Ac stabilized power source device
GB569327A (en) Improvements relating to generators of frequency modulated oscillations
GB761802A (en) Improvements in or relating to electric oscillator circuits employing transistors
GB817319A (en) Stabilised electric transistor oscillators
GB631393A (en) Improvements in and relating to thermionic valve oscillators
GB1246695A (en) Improvements in or relating to electric current generators, notably high frequency generators
GB1019283A (en) Improvements in or relating to generators
JPS5673906A (en) Microwave oscillator
JPS57101402A (en) Voltage controlled variable frequency oscillator
SU146348A1 (en) Swing Frequency Generator
GB962677A (en) Frequency stable pulse oscillator
GB954053A (en) Improvements in or relating to control of transistor oscillators
GB1090760A (en) Improvements in or relating to frequency modulated oscillator circuits
GB1459146A (en) High frequency voltage generator
GB1078833A (en) Improvements in parametric frequency-multiplier circuits
GB868999A (en) Frequency modulating system for crystal oscillators
GB878477A (en) Means for regulating an electrical current
GB869567A (en) Reconnaissance electromagnetic survey pack and method