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GB858116A - Improvements relating to transistor switching circuits - Google Patents

Improvements relating to transistor switching circuits

Info

Publication number
GB858116A
GB858116A GB1192056A GB1192056A GB858116A GB 858116 A GB858116 A GB 858116A GB 1192056 A GB1192056 A GB 1192056A GB 1192056 A GB1192056 A GB 1192056A GB 858116 A GB858116 A GB 858116A
Authority
GB
United Kingdom
Prior art keywords
load
transistor
transistors
current flows
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
GB1192056A
Inventor
Joseph John Florentin
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB1192056A priority Critical patent/GB858116A/en
Priority to DEE13992A priority patent/DE1051324B/en
Publication of GB858116A publication Critical patent/GB858116A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03K17/661—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals
    • H03K17/662—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals each output circuit comprising more than one controlled bipolar transistor
    • 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
    • H03K17/661—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals

Landscapes

  • Bipolar Transistors (AREA)
  • Dc-Dc Converters (AREA)
  • Electronic Switches (AREA)

Abstract

858,116. Transistor switching circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 10, 1957 [April 19, 1956], No. 11920/56. Class 40(6). In a circuit for switching current in either direction through a load L Fig. 1, two transistors Tl, T2 are fed from a common supply line 7 with the load connected between electrodes which conduct in the same direction. When the base of transistor Tl is biased negatively, current flows through resistor R2, load L and transistor T1. In a similar manner when transistor T2 is rendered conducting current flows through resistor R1, load L and transistor T2. No current flows through the load L when both of the transistors T1, T2 are either biased off or rendered fully conducting. In a modification, Fig. 2 the resistors are replaced by transistors T3, T4. Either of the pairs of transistors T1, T4 or T2, T3 is made conducting to pass current in one or other direction through the load L. With all the transistors biased off or fully conducting no current flows in the load.
GB1192056A 1956-04-19 1956-04-19 Improvements relating to transistor switching circuits Expired GB858116A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1192056A GB858116A (en) 1956-04-19 1956-04-19 Improvements relating to transistor switching circuits
DEE13992A DE1051324B (en) 1956-04-19 1957-04-15 Transistor circuits for determining the direction of the current flow through a load

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1192056A GB858116A (en) 1956-04-19 1956-04-19 Improvements relating to transistor switching circuits

Publications (1)

Publication Number Publication Date
GB858116A true GB858116A (en) 1961-01-04

Family

ID=9995057

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1192056A Expired GB858116A (en) 1956-04-19 1956-04-19 Improvements relating to transistor switching circuits

Country Status (2)

Country Link
DE (1) DE1051324B (en)
GB (1) GB858116A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1107275B (en) * 1959-09-01 1961-05-25 Telefonbau Arrangement for switching through AC circuits
DE1231755B (en) * 1964-06-12 1967-01-05 Boelkow Gmbh Circuit arrangement for electronically switching the polarity and for changing the amount of a reference voltage, especially for digital voltmeters
DE1273578B (en) * 1964-07-24 1968-07-25 Licentia Gmbh Contactless current direction switch
US3268818A (en) * 1965-01-14 1966-08-23 Continental Oil Co Sine wave-square wave converter
DE1286144B (en) * 1966-09-30 1969-01-02 Siemens Ag Active modulator with transistors
JPS5863081A (en) * 1981-10-07 1983-04-14 Mitsubishi Electric Corp Inverter device

Also Published As

Publication number Publication date
DE1051324B (en) 1959-02-26

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