EP0378997A3 - Hf generator for high-power consumers - Google Patents

Hf generator for high-power consumers Download PDF

Info

Publication number
EP0378997A3
EP0378997A3 EP19900100122 EP90100122A EP0378997A3 EP 0378997 A3 EP0378997 A3 EP 0378997A3 EP 19900100122 EP19900100122 EP 19900100122 EP 90100122 A EP90100122 A EP 90100122A EP 0378997 A3 EP0378997 A3 EP 0378997A3
Authority
EP
European Patent Office
Prior art keywords
grid
tube
control grid
control
generator
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.)
Withdrawn
Application number
EP19900100122
Other languages
German (de)
French (fr)
Other versions
EP0378997A2 (en
Inventor
Abdelraouf Dipl.-Ing. Meddour
Erich Dipl.-Ing. Conrad
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.)
HIMMELWERK GMBH & CO. HOCH- UND MITTELFREQUENZANLA
Original Assignee
Himmelwerk & Co Hoch- und Mittelfrequenzanlagen GmbH
Flender Himmelwerk GmbH
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 Himmelwerk & Co Hoch- und Mittelfrequenzanlagen GmbH, Flender Himmelwerk GmbH filed Critical Himmelwerk & Co Hoch- und Mittelfrequenzanlagen GmbH
Publication of EP0378997A2 publication Critical patent/EP0378997A2/en
Publication of EP0378997A3 publication Critical patent/EP0378997A3/en
Withdrawn legal-status Critical Current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

Abstract

Die Erfindung bezieht sich auf einen Hochfrequenzgenerator für leistungsstarke Verbraucher mit einem eine Mehrgitterröhre Tr aufweisenden, selbsterregten Oszillator SK,RK,Tr. Um Hochfrequenzimpulse beliebiger Form erzeugen zu können, ist an einem Steuergitter G₁ der Mehrgitterröhre Tr, das an der Rückkopplung RK angeschlossen ist, ein elektronischer Schalter T₁ angeschlossen, mit dem wahlweise das Steuergitter G₁ mit der Kathode K der Mehrgitterröhre Tr oder einer negativen Vorspannung verbindbar ist. Dadurch ist es möglich, die Schwingungen zu unterbrechen. An dem zweiten Steuergitter G₂ der Mehrgitterröhre Tr erfolgt innerhalb des am anderen Steuergitter G₁ eingestellten Impulses die Amplitudenmodulation der Hochfrequenzspannung. Durch Kombination der beiden Steuermöglichkeiten kann jede beliebige Impulsform der HF-Spannung erzeugt werden. The invention relates to a high frequency generator for high-performance loads with a multigrid tube T r having self-excited oscillator SK, RK, T r. In order to be able to generate high-frequency pulses of any shape, an electronic switch T 1 is connected to a control grid G 1 of the multi-grid tube T r , which is connected to the feedback RK, with which either the control grid G 1 with the cathode K of the multi-grid tube T r or a negative bias voltage is connectable. This makes it possible to interrupt the vibrations. On the second control grid G₂ of the multi-grid tube T r , the amplitude modulation of the high-frequency voltage takes place within the pulse set on the other control grid G₁. By combining the two control options, any pulse shape of the RF voltage can be generated.

EP19900100122 1989-01-14 1990-01-04 Hf generator for high-power consumers Withdrawn EP0378997A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893900958 DE3900958A1 (en) 1989-01-14 1989-01-14 HIGH-FREQUENCY GENERATOR FOR HIGH-PERFORMANCE CONSUMERS
DE3900958 1989-01-14

Publications (2)

Publication Number Publication Date
EP0378997A2 EP0378997A2 (en) 1990-07-25
EP0378997A3 true EP0378997A3 (en) 1992-09-02

Family

ID=6372077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900100122 Withdrawn EP0378997A3 (en) 1989-01-14 1990-01-04 Hf generator for high-power consumers

Country Status (2)

Country Link
EP (1) EP0378997A3 (en)
DE (1) DE3900958A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8402976B2 (en) 2008-04-17 2013-03-26 Philip Morris Usa Inc. Electrically heated smoking system
US9439454B2 (en) 2008-03-14 2016-09-13 Philip Morris Usa Inc. Electrically heated aerosol generating system and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5613505A (en) * 1992-09-11 1997-03-25 Philip Morris Incorporated Inductive heating systems for smoking articles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3332036A (en) * 1964-04-17 1967-07-18 Ohio Crankshaft Co High frequency electrical power source with pulsating control
US3387378A (en) * 1965-07-02 1968-06-11 Control Systems Corp Method and apparatus for high frequency treatment of materials
US4272737A (en) * 1979-05-25 1981-06-09 The Marconi Company Limited Pulse width modulator for amplitude modulation circuit
EP0063479A2 (en) * 1981-04-22 1982-10-27 The Marconi Company Limited An amplifier for pulse width modulated signals

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1218557B (en) * 1963-02-08 1966-06-08 Telefunken Patent Modulation circuit for anode voltage modulation of a high-frequency transmitter output stage
NL8600673A (en) * 1986-03-17 1987-10-16 Philips Nv GENERATOR FOR HIGH-FREQUENT HEATING, EQUIPPED WITH AN ELECTRON TUBE WITH MORE THAN A GRILLE.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3332036A (en) * 1964-04-17 1967-07-18 Ohio Crankshaft Co High frequency electrical power source with pulsating control
US3387378A (en) * 1965-07-02 1968-06-11 Control Systems Corp Method and apparatus for high frequency treatment of materials
US4272737A (en) * 1979-05-25 1981-06-09 The Marconi Company Limited Pulse width modulator for amplitude modulation circuit
EP0063479A2 (en) * 1981-04-22 1982-10-27 The Marconi Company Limited An amplifier for pulse width modulated signals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ELECTRONIQUE Nr. 275, November 1979, Seite 53; '3 ou 30 kw à réglage continu pour chauffage HF' *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9439454B2 (en) 2008-03-14 2016-09-13 Philip Morris Usa Inc. Electrically heated aerosol generating system and method
US8402976B2 (en) 2008-04-17 2013-03-26 Philip Morris Usa Inc. Electrically heated smoking system
US8851081B2 (en) 2008-04-17 2014-10-07 Philip Morris Usa Inc. Electrically heated smoking system

Also Published As

Publication number Publication date
DE3900958A1 (en) 1990-07-26
DE3900958C2 (en) 1991-01-10
EP0378997A2 (en) 1990-07-25

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