GB931674A - Improvements in and relating to electronic gating circuits - Google Patents

Improvements in and relating to electronic gating circuits

Info

Publication number
GB931674A
GB931674A GB1160959A GB1160959A GB931674A GB 931674 A GB931674 A GB 931674A GB 1160959 A GB1160959 A GB 1160959A GB 1160959 A GB1160959 A GB 1160959A GB 931674 A GB931674 A GB 931674A
Authority
GB
United Kingdom
Prior art keywords
transistor
resistor
bias
base
resistors
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
GB1160959A
Inventor
Thomas Ernest Barany
David Spencer Simons
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB1160959A priority Critical patent/GB931674A/en
Publication of GB931674A publication Critical patent/GB931674A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/08—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices
    • H03K19/082—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using bipolar transistors
    • H03K19/09—Resistor-transistor logic

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Electronic Switches (AREA)

Abstract

931,674. Transistor switching circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 25, 1960 [April 6, 1959], No. 11609/59. Class 40 (6). In a logic circuit, a transistor has its base connected through individual resistors to input circuits, and a bias source, and a connector is provided for detachably connecting in parallel with the bias resistor an additional resistor to modify the function of the circuit. A number of switches S1 . . . S4, which may be electronic, are connected via resistors R1 . . . R4 to the base of transistor T1 and a source of bias is connected to the base by an adjustable resistor R5, the value of which is set such that applying signals to a predetermined number of inputs will switch the transistor to its conductive conductive state. A second transistor T2 may be coupled to the first as an inverter. The variable resistor comprises a main resistor, which may be continually variable, and a number of interchangeable additional resistors.
GB1160959A 1959-04-06 1959-04-06 Improvements in and relating to electronic gating circuits Expired GB931674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1160959A GB931674A (en) 1959-04-06 1959-04-06 Improvements in and relating to electronic gating circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1160959A GB931674A (en) 1959-04-06 1959-04-06 Improvements in and relating to electronic gating circuits

Publications (1)

Publication Number Publication Date
GB931674A true GB931674A (en) 1963-07-17

Family

ID=9989403

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1160959A Expired GB931674A (en) 1959-04-06 1959-04-06 Improvements in and relating to electronic gating circuits

Country Status (1)

Country Link
GB (1) GB931674A (en)

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