GB981639A - Improvements in or relating to transistor repeaters - Google Patents

Improvements in or relating to transistor repeaters

Info

Publication number
GB981639A
GB981639A GB4130262A GB4130262A GB981639A GB 981639 A GB981639 A GB 981639A GB 4130262 A GB4130262 A GB 4130262A GB 4130262 A GB4130262 A GB 4130262A GB 981639 A GB981639 A GB 981639A
Authority
GB
United Kingdom
Prior art keywords
transistor
emitter
constant
voltage
resistor
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
GB4130262A
Inventor
John Anstey Barber
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB4130262A priority Critical patent/GB981639A/en
Priority to SE7688/63A priority patent/SE312833B/xx
Priority to FR949302A priority patent/FR1375993A/en
Publication of GB981639A publication Critical patent/GB981639A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Fire Alarms (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

981,639. Transistor circuits. MARCONI CO. Ltd. May 2, 1963 [Nov. 1, 1962], No. 41302/62. Heading H3T. A transistor circuit arrangement comprises an emitter follower transistor VT1 with a first constant current device K2 in the emitter circuit of the transistor and a second constant current device K1 connected by a series resistor R4 to the emitter of the transmitter, whereby the current through the resistor combines with that from the first constant current device to ensure that the transistor VT1 is supplied with a constant emitter current, the voltage between the collector and emitter of the transistor being dependent on the voltage across the resistor R4. The current through and the voltage across transistor VT1 are accordingly both maintained constant. In the Figure the constant current devices each comprise a transistor with a Zener diode between the emitter and the base. The constant voltage across the resistor R4 is applied to the collector emitter circuit of transistor VT1 by an emitter follower VT4. The Zener diodes Z1, Z2 may be replaced by batteries.
GB4130262A 1962-11-01 1962-11-01 Improvements in or relating to transistor repeaters Expired GB981639A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4130262A GB981639A (en) 1962-11-01 1962-11-01 Improvements in or relating to transistor repeaters
SE7688/63A SE312833B (en) 1962-11-01 1963-07-10
FR949302A FR1375993A (en) 1962-11-01 1963-10-02 Improvements to transistor repeaters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4130262A GB981639A (en) 1962-11-01 1962-11-01 Improvements in or relating to transistor repeaters

Publications (1)

Publication Number Publication Date
GB981639A true GB981639A (en) 1965-01-27

Family

ID=10419061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4130262A Expired GB981639A (en) 1962-11-01 1962-11-01 Improvements in or relating to transistor repeaters

Country Status (1)

Country Link
GB (1) GB981639A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603892A (en) * 1969-10-10 1971-09-07 John E Guisinger High voltage transistor amplifier with constant current load

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603892A (en) * 1969-10-10 1971-09-07 John E Guisinger High voltage transistor amplifier with constant current load

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