GB1146458A - Highly efficient semiconductor switching amplifier - Google Patents

Highly efficient semiconductor switching amplifier

Info

Publication number
GB1146458A
GB1146458A GB48020/67A GB4802067A GB1146458A GB 1146458 A GB1146458 A GB 1146458A GB 48020/67 A GB48020/67 A GB 48020/67A GB 4802067 A GB4802067 A GB 4802067A GB 1146458 A GB1146458 A GB 1146458A
Authority
GB
United Kingdom
Prior art keywords
switches
drive
switch
series
semi
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
GB48020/67A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1146458A publication Critical patent/GB1146458A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/36—Amplitude modulation by means of semiconductor device having at least three electrodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/66—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will
    • H03K17/665—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to one load terminal only
    • H03K17/666—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to one load terminal only the output circuit comprising more than one controlled bipolar transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/80—Generating trains of sinusoidal oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

1,146,458. Transistor amplifiers; amplitude modulation. WESTINGHOUSE ELECTRIC CORP. 23 Oct., 1967 [16 Nov., 1966], No. 48020/67. Headings H3R and H3T. [Also in Division H2] A circuit in which semi-conductor switches 2 4 alternately conduct to cause current to flow into and out of a series resonant, network 8 (such as an antenna) which tends to continue to oscillate when the drive to the switches is removed, has undirectional conductors 22, 24 connected in series with the switches in such polarity as to block the discharge of the interelectrode capacitance when the drive is removed. It is explained that this discharge current would otherwise flow to the base and switch on the semi-conductor switch, thereby continuing the oscillation when switch 14 is opened. The diodes alternatively could be connected to the power supply connections (Fig. 3, not shown) and diodes 16, 18 return oscillation energy in the power supply when the drive is removed. Each single transistor shown may be replaced by a plurality in series or parallel.
GB48020/67A 1966-11-16 1967-10-23 Highly efficient semiconductor switching amplifier Expired GB1146458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US59488466A 1966-11-16 1966-11-16

Publications (1)

Publication Number Publication Date
GB1146458A true GB1146458A (en) 1969-03-26

Family

ID=24380819

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48020/67A Expired GB1146458A (en) 1966-11-16 1967-10-23 Highly efficient semiconductor switching amplifier

Country Status (2)

Country Link
DE (1) DE1591820B1 (en)
GB (1) GB1146458A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2249226A (en) * 1990-10-25 1992-04-29 Dassault Electronique A chopping voltage converter with an improved switching operation

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053709B1 (en) * 1980-12-04 1985-03-06 Siemens Aktiengesellschaft Circuitry for driving at least one power fet
FR2712126B1 (en) * 1993-11-05 1995-12-01 Thomson Csf Power amplifier of the H-bridge type and its blocking means and power amplifier device comprising such amplifiers.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1037826A (en) * 1963-02-06 1966-08-03 Westinghouse Electric Corp Electric amplification

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2249226A (en) * 1990-10-25 1992-04-29 Dassault Electronique A chopping voltage converter with an improved switching operation
GB2249226B (en) * 1990-10-25 1995-05-31 Dassault Electronique A chopping voltage converter with an improved switching operation

Also Published As

Publication number Publication date
DE1591820B1 (en) 1972-08-03

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