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GB833896A - Improvements in or relating to electric power convertors - Google Patents

Improvements in or relating to electric power convertors

Info

Publication number
GB833896A
GB833896A GB31599/57A GB3159957A GB833896A GB 833896 A GB833896 A GB 833896A GB 31599/57 A GB31599/57 A GB 31599/57A GB 3159957 A GB3159957 A GB 3159957A GB 833896 A GB833896 A GB 833896A
Authority
GB
United Kingdom
Prior art keywords
transistors
base
winding
collectors
feed
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
GB31599/57A
Inventor
Guy Lloyd Fougere
William Leslie Brendling
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.)
SYLVANIA THORN COLOUR TELEVISION LABORATORIES Ltd
Original Assignee
SYLVANIA THORN COLOUR TELEVISION LABORATORIES 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
Application filed by SYLVANIA THORN COLOUR TELEVISION LABORATORIES Ltd filed Critical SYLVANIA THORN COLOUR TELEVISION LABORATORIES Ltd
Priority to GB31599/57A priority Critical patent/GB833896A/en
Priority to DET15735A priority patent/DE1275198B/en
Publication of GB833896A publication Critical patent/GB833896A/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
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
    • H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/338—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
    • H02M3/3382—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement in a push-pull circuit arrangement
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Dc-Dc Converters (AREA)

Abstract

833,896. Converting. SYLVANIA-THORN COLOUR TELEVISION LABORATORIES Ltd. Sept. 11,1958 [Oct. 9, 1957], No. 31599/57. Class 38 (2). [Also in Group XL (c)] In a power converter the base and emitter electrodes of two NPN transistors are connected to one supply terminal and the base and emitter electrodes of two PNP transistors are connected to the other terminal. The collector of an NPN transistor, Fig. 1, is connected to the collector of a PNP via a primary winding and the collectors of the other two transistors are similarly connected by a second winding. Alternatively, Fig. 2 (not shown), the collectors of a NPN and a PNP transistor are joined together and through a primary winding to the collectors of the other transistors. In both arrangements the system is made to oscillate by a feed-back winding in the base-emitter circuit of each transistor. Fig. 3 shows a biasing arrangement in which the feed-back winding 13, 18 and shunt fed via blocking capacitors 30. In Fig. 4 (not shown), the feedback windings 13, 18 are connected in series with the base, bias capacitors being connected across the resistors 28, 28a. These biasing circuits ensure thermal stability and may be adjusted for operation at Class A, AB, or B. The feed-back windings may alternatively be included in the emitter circuits. The overall efficiency is stated as being 90%. A D.C. output of higher voltage than the supply input may be obtained by rectifying the output of the secondary 25.
GB31599/57A 1957-10-09 1957-10-09 Improvements in or relating to electric power convertors Expired GB833896A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB31599/57A GB833896A (en) 1957-10-09 1957-10-09 Improvements in or relating to electric power convertors
DET15735A DE1275198B (en) 1957-10-09 1958-10-09 Transistor bridge inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31599/57A GB833896A (en) 1957-10-09 1957-10-09 Improvements in or relating to electric power convertors

Publications (1)

Publication Number Publication Date
GB833896A true GB833896A (en) 1960-05-04

Family

ID=10325555

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31599/57A Expired GB833896A (en) 1957-10-09 1957-10-09 Improvements in or relating to electric power convertors

Country Status (2)

Country Link
DE (1) DE1275198B (en)
GB (1) GB833896A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124845A (en) * 1982-06-22 1984-02-22 Anglo Amer Corp South Africa Welding apparatus
GB2282015A (en) * 1993-09-20 1995-03-22 Asia Electronics Ind Co Ltd Low noise converter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4194238A (en) * 1977-03-04 1980-03-18 Sanyo Electric Company, Ltd. Power supply apparatus
DE2844201A1 (en) * 1978-10-11 1980-04-24 Krupp Gmbh Semiconductor push-pull output stage circuit - has transmitter with two primary windings, symmetrically connected to supply feeding semiconductor device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE536944A (en) * 1954-04-07
US2821639A (en) * 1954-10-28 1958-01-28 Westinghouse Electric Corp Transistor switching circuits
US2798160A (en) * 1955-03-02 1957-07-02 Avco Mfg Corp Power supply circuit using controllable electron solid state devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124845A (en) * 1982-06-22 1984-02-22 Anglo Amer Corp South Africa Welding apparatus
GB2282015A (en) * 1993-09-20 1995-03-22 Asia Electronics Ind Co Ltd Low noise converter
US5430638A (en) * 1993-09-20 1995-07-04 Asia Electronics Ind. Co., Ltd. Low noise type converter with complementary transistors

Also Published As

Publication number Publication date
DE1275198B (en) 1968-08-14

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