GB924586A - A transistor amplifier - Google Patents

A transistor amplifier

Info

Publication number
GB924586A
GB924586A GB2568761A GB2568761A GB924586A GB 924586 A GB924586 A GB 924586A GB 2568761 A GB2568761 A GB 2568761A GB 2568761 A GB2568761 A GB 2568761A GB 924586 A GB924586 A GB 924586A
Authority
GB
United Kingdom
Prior art keywords
resistor
transistor
tunnel diode
voltage
july
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
GB2568761A
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Publication of GB924586A publication Critical patent/GB924586A/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
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • 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
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers

Abstract

924,586. Transistor amplifying circuits. SIEMENS-SCHUCKERTWERKE A.G. July 14, 1961 [July 15, 1960], No. 25687/61. Class 40 (6). A transistor amplifier, operating at low voltages, is stabilized against temperature variations by negative feedback current fed into the emitter circuit of the transistor T through a feed-back element comprising a resistor R1 and a tunnel diode R2 connected in parallel. As shown in Fig. 2, the value of resistor R1 is such that its voltage-current characteristic intersects the corresponding characteristic curve of the tunnel diode at or near the voltage operating point RG of the amplifier. Thus, by appropriate choice of the resistor and tunnel diode a very small voltage of about 0.1 to 0.2 volts can be obtained across the parallel combination with a high resistance of the order of 1000 ohms.
GB2568761A 1960-07-15 1961-07-14 A transistor amplifier Expired GB924586A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES69419A DE1127404B (en) 1960-07-15 1960-07-15 Stabilized transistor amplifier with very low operating voltage

Publications (1)

Publication Number Publication Date
GB924586A true GB924586A (en) 1963-04-24

Family

ID=7500968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2568761A Expired GB924586A (en) 1960-07-15 1961-07-14 A transistor amplifier

Country Status (3)

Country Link
CH (1) CH402954A (en)
DE (1) DE1127404B (en)
GB (1) GB924586A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302124A (en) * 1963-10-28 1967-01-31 Edgar L Dix Transistor pulse amplifier to eliminate baseline noise

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2647958A (en) * 1949-10-25 1953-08-04 Bell Telephone Labor Inc Voltage and current bias of transistors
US2757243A (en) * 1951-09-17 1956-07-31 Bell Telephone Labor Inc Transistor circuits
US2847583A (en) * 1954-12-13 1958-08-12 Rca Corp Semiconductor devices and stabilization thereof

Also Published As

Publication number Publication date
DE1127404B (en) 1962-04-12
CH402954A (en) 1965-11-30

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