GB1390815A - Power oscillators - Google Patents

Power oscillators

Info

Publication number
GB1390815A
GB1390815A GB2157772A GB2157772A GB1390815A GB 1390815 A GB1390815 A GB 1390815A GB 2157772 A GB2157772 A GB 2157772A GB 2157772 A GB2157772 A GB 2157772A GB 1390815 A GB1390815 A GB 1390815A
Authority
GB
United Kingdom
Prior art keywords
power
control device
valve
control signal
conducting
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
GB2157772A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB2157772A priority Critical patent/GB1390815A/en
Priority to ZA732023A priority patent/ZA732023B/en
Priority to AU55304/73A priority patent/AU482301B2/en
Publication of GB1390815A publication Critical patent/GB1390815A/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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L5/00—Automatic control of voltage, current, or power
    • H03L5/02—Automatic control of voltage, current, or power of power

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • General Induction Heating (AREA)

Abstract

1390815 Power oscillators STANDARD TELEPHONES & CABLES Ltd 9 May 1972 21577/72 Heading H3F A power oscillator suitable for high frequency heating installations comprises a magnetically focused power valve 1, a tank circuit L 3 , C 3 , and an auxiliary control device 2 arranged in response to an applied control signal to clip the positive peaks of the feedback waveform to the control electrode in a proportionate manner for controlling the power output of the oscillator. The auxiliary control device 2 may be a diode, triode, tetrode or even a transistor (Figs. 1, 2, 4b, not shown), to which an adjustable control signal is applied to render it conducting for a given value of the control electrode voltage. The anode voltage swing is reduced once the device 2 starts conducting and the system finally settles down to a new set of stable conditions with a reduced output power. The control device 2 may be formed separately or enclosed in the same envelope as valve 1.
GB2157772A 1972-05-09 1972-05-09 Power oscillators Expired GB1390815A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2157772A GB1390815A (en) 1972-05-09 1972-05-09 Power oscillators
ZA732023A ZA732023B (en) 1972-05-09 1973-03-23 Improvements in and relating to power oscillators
AU55304/73A AU482301B2 (en) 1972-05-09 1973-05-07 Improvements in and relating to power oscillators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2157772A GB1390815A (en) 1972-05-09 1972-05-09 Power oscillators

Publications (1)

Publication Number Publication Date
GB1390815A true GB1390815A (en) 1975-04-16

Family

ID=10165261

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2157772A Expired GB1390815A (en) 1972-05-09 1972-05-09 Power oscillators

Country Status (2)

Country Link
GB (1) GB1390815A (en)
ZA (1) ZA732023B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2553917A1 (en) * 1974-12-03 1976-06-16 Int Standard Electric Corp CIRCUIT ARRANGEMENT FOR CONTROLLING THE OUTPUT POWER OF AN OSCILLATOR
US4001727A (en) * 1974-12-03 1977-01-04 International Standard Electric Corporation Power control circuit for a power oscillator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2553917A1 (en) * 1974-12-03 1976-06-16 Int Standard Electric Corp CIRCUIT ARRANGEMENT FOR CONTROLLING THE OUTPUT POWER OF AN OSCILLATOR
US4001727A (en) * 1974-12-03 1977-01-04 International Standard Electric Corporation Power control circuit for a power oscillator

Also Published As

Publication number Publication date
AU5530473A (en) 1974-11-07
ZA732023B (en) 1974-01-30

Similar Documents

Publication Publication Date Title
GB1085896A (en) Peak and slope detector
ES375554A1 (en) Signal translating stage
JPS54136261A (en) Current inversion circuit
GB1390815A (en) Power oscillators
ES421882A1 (en) Vertical deflection circuits for electron beam scanning
GB1459164A (en) Electronic ignition system
ES421388A1 (en) Gain control circuit
GB1471423A (en) Sampling circuits
GB1178232A (en) Improvements in or relating to gain control circuits.
GB1369688A (en) Remotely controllable electronic variable resistance
GB1097046A (en) Improvements in electrical control circuit
GB1481535A (en) Current regulator
JPS5447468A (en) Pulse signal control circuit
JPS52102659A (en) Differential amplifier
JPS5797272A (en) Power supply device
GB1519092A (en) Voltage controlled oscillator circuit
SU620015A1 (en) Threshold-device
SU949817A1 (en) Transistorized switch
JPS54117663A (en) Amplifier
GB670671A (en) Improvements in or relating to thermionic valve integrating circuits
JPS5627516A (en) Amplifier
GB998808A (en) Magnetic storage device
JPS5845850B2 (en) Kukeihanohakouchigen Cairo
GB1346504A (en) Switching means for simulating the electrical properties of a solar cell
JPS52141162A (en) Sample hold circuit

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee