GB857775A - Improvements in or relating to transistor oscillator circuits - Google Patents

Improvements in or relating to transistor oscillator circuits

Info

Publication number
GB857775A
GB857775A GB31189/58A GB3118958A GB857775A GB 857775 A GB857775 A GB 857775A GB 31189/58 A GB31189/58 A GB 31189/58A GB 3118958 A GB3118958 A GB 3118958A GB 857775 A GB857775 A GB 857775A
Authority
GB
United Kingdom
Prior art keywords
transformer
windings
transistors
voltage
junction
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
GB31189/58A
Inventor
Ian Frederick Davies
Albert Edmund Jackets
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 GB31189/58A priority Critical patent/GB857775A/en
Publication of GB857775A publication Critical patent/GB857775A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5383—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement
    • H02M7/53832—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement in a push-pull arrangement
    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

857,775. Transistor oscillator circuits. GENERAL ELECTRIC CO. Ltd. Sept. 2, 1959 [Sept. 30, 1958], No. 31189/58. Class 40(6). [Also in Group XXXV] A transistor oscillator comprises two transistors 1, 2 having their emitter collector paths connected in series in the same sense between the terminals of a supply source 3 and an output transformer which also provides a regenerative feedback voltage such that the two transistors conduct alternately in the saturated condition, the transformer primary winding 10 being connected between the junction point of the two transistors and the junction of two equal capacitors 5, 7 connected across the supply source and of such magnitude that the voltage at their junction remains constant during the oscillation cycle. In the circuit shown the output transformer feeds a discharge tube 12 supplying the discharge current through a capacitor 14 and the heater current through windings 15, and 16. Feedback is provided through windings 19 and 20 and resistors 21 and 22 which limit the collector current when the transformer saturates and as the conductive condition of the transistor reverses. These windings could alternatively be connected to a further transformer connected in series with the main secondary winding of the output transformer. Resistors 6 and 8 assist in equalizing the voltage across capacitors 5 and 7, resistor 9 provides a load when the discharge tube is removed and resistor 23 assists the starting of oscillation.
GB31189/58A 1958-09-30 1958-09-30 Improvements in or relating to transistor oscillator circuits Expired GB857775A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB31189/58A GB857775A (en) 1958-09-30 1958-09-30 Improvements in or relating to transistor oscillator circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31189/58A GB857775A (en) 1958-09-30 1958-09-30 Improvements in or relating to transistor oscillator circuits

Publications (1)

Publication Number Publication Date
GB857775A true GB857775A (en) 1961-01-04

Family

ID=10319331

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31189/58A Expired GB857775A (en) 1958-09-30 1958-09-30 Improvements in or relating to transistor oscillator circuits

Country Status (1)

Country Link
GB (1) GB857775A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468277A1 (en) * 1979-10-16 1981-04-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh BALLAST FOR LOW PRESSURE DISCHARGE LAMPS
DE3429773A1 (en) * 1984-08-13 1986-02-20 Otto 7750 Konstanz Kreutzer Transistorised tuned-circuit invertor
US4745537A (en) * 1987-01-23 1988-05-17 Cheung P S Low dissipation power converter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468277A1 (en) * 1979-10-16 1981-04-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh BALLAST FOR LOW PRESSURE DISCHARGE LAMPS
DE3429773A1 (en) * 1984-08-13 1986-02-20 Otto 7750 Konstanz Kreutzer Transistorised tuned-circuit invertor
US4745537A (en) * 1987-01-23 1988-05-17 Cheung P S Low dissipation power converter

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