GB782038A - Improvements in or relating to transistor amplifiers - Google Patents

Improvements in or relating to transistor amplifiers

Info

Publication number
GB782038A
GB782038A GB23975/55A GB2397555A GB782038A GB 782038 A GB782038 A GB 782038A GB 23975/55 A GB23975/55 A GB 23975/55A GB 2397555 A GB2397555 A GB 2397555A GB 782038 A GB782038 A GB 782038A
Authority
GB
United Kingdom
Prior art keywords
transistor
resistor
circuit
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
GB23975/55A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB782038A publication Critical patent/GB782038A/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)

Abstract

782,038. Transistor amplifier stabilizing circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 19, 1955 [Aug. 24, 1964], No. 23975/55. Class 40 (6). In a circuit in which the collector of transistor 1 is connected directly to the base of transistor 2, the working-point of the second transistor is stabilized by connecting resistors 5, 6 in the emitter circuit of the second transistor, the junction being connected to the base of the first transistor. Further compensation may be obtained by including a resistor 7, which may be decoupled, in the emitter circuit of transistor 1. The input source 3 may be included in the lead 9 between the base of transistor 1 and the junction of resistors 5, 6. The resistors may be made temperature-sensitive, resistor 6 having a negative temperature coefficient and resistor 5 and/or 7 a positive coefficient. Resistor 6 may be replaced by a diode conducting in the same sense as the emitter of transistor 2. The input impedance may be increased by a feed-back circuit 8, and a resistor may also be included in lead 9 with its lower end connected to the emitter circuit of transistor 1 over a capacitor. The signal source 3 may be connected in series with the voltage across resistor 6.
GB23975/55A 1954-08-24 1955-08-19 Improvements in or relating to transistor amplifiers Expired GB782038A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL782038X 1954-08-24

Publications (1)

Publication Number Publication Date
GB782038A true GB782038A (en) 1957-08-28

Family

ID=19832173

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23975/55A Expired GB782038A (en) 1954-08-24 1955-08-19 Improvements in or relating to transistor amplifiers

Country Status (5)

Country Link
BE (1) BE540729A (en)
DE (1) DE976062C (en)
FR (1) FR1130185A (en)
GB (1) GB782038A (en)
NL (1) NL190244A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1152149B (en) * 1959-01-13 1963-08-01 John Somerset Murray Multi-stage stabilized transistor amplifier

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB881473A (en) * 1957-05-31 1961-11-01 John Somerset Murray Improvements in and relating to transistor amplifiers
US3383609A (en) * 1964-12-04 1968-05-14 Rca Corp Push-pull amplifier circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB848661A (en) * 1945-01-24 1960-09-21 Atomic Energy Authority Uk Iron coatings and method of applying
BE571297A (en) * 1957-12-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1152149B (en) * 1959-01-13 1963-08-01 John Somerset Murray Multi-stage stabilized transistor amplifier

Also Published As

Publication number Publication date
BE540729A (en)
FR1130185A (en) 1957-01-31
DE976062C (en) 1963-02-07
NL190244A (en)

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