GB1079727A - Improvements in or relating to high-frequency heating circuit arrangements - Google Patents

Improvements in or relating to high-frequency heating circuit arrangements

Info

Publication number
GB1079727A
GB1079727A GB29119/66A GB2911966A GB1079727A GB 1079727 A GB1079727 A GB 1079727A GB 29119/66 A GB29119/66 A GB 29119/66A GB 2911966 A GB2911966 A GB 2911966A GB 1079727 A GB1079727 A GB 1079727A
Authority
GB
United Kingdom
Prior art keywords
tube
voltage
frequency heating
heating circuit
relating
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
GB29119/66A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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
Priority claimed from NL6508506A external-priority patent/NL6508506A/xx
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1079727A publication Critical patent/GB1079727A/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

1,079,727. Automatic control of high frequency apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 29, 1966 [July 2, 1965], No. 29119/66. Heading G3R. To increase the range of adjustment of a high frequency heating circuit comprising an oscillator tube 1 whose grid voltage is adjusted by another tube 14 responsive to the load voltage, the output of an additional tube 28 is connected in series with the tube 14, and the input is derived from the tube 1 by means of an impedance either in the anode A. C. circuit, or cathode circuit, such as a resistor 29, the voltage across which is chopped in unit 30, then transformed and rectified before being applied to the grid of tube 28. Components 30 33 provide voltage matching and isolation. In a further arrangement the control voltage for tube 14 may be derived from a thermocouple in contact with a workpiece 10.
GB29119/66A 1965-07-02 1966-06-29 Improvements in or relating to high-frequency heating circuit arrangements Expired GB1079727A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL6508506A NL6508506A (en) 1965-07-02 1965-07-02
FR67356A FR1485100A (en) 1965-07-02 1966-06-29 High frequency furnace

Publications (1)

Publication Number Publication Date
GB1079727A true GB1079727A (en) 1967-08-16

Family

ID=26171635

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29119/66A Expired GB1079727A (en) 1965-07-02 1966-06-29 Improvements in or relating to high-frequency heating circuit arrangements

Country Status (2)

Country Link
FR (1) FR1485100A (en)
GB (1) GB1079727A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5347380A (en) * 1976-10-13 1978-04-27 Monsanto Co Process and apparatus for zoneerefinig of roddform semiconductor material
NL8600672A (en) * 1986-03-17 1987-10-16 Philips Nv GENERATOR FOR HIGH-FREQUENCY HEATING WITH AN IMPEDANCE BODY PARALLEL TO THE CONTROL ELEMENT IN THE CATHODE CHAIN OF THE ELECTRON TUBE OF THE OSCILLATOR CIRCUIT.

Also Published As

Publication number Publication date
FR1485100A (en) 1967-06-16

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