GB1281325A - Improvements in or relating to multistage transistorised a.c. voltage amplifiers - Google Patents

Improvements in or relating to multistage transistorised a.c. voltage amplifiers

Info

Publication number
GB1281325A
GB1281325A GB135370A GB135370A GB1281325A GB 1281325 A GB1281325 A GB 1281325A GB 135370 A GB135370 A GB 135370A GB 135370 A GB135370 A GB 135370A GB 1281325 A GB1281325 A GB 1281325A
Authority
GB
United Kingdom
Prior art keywords
output
capacitor
stage
transistor
multistage
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
GB135370A
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 AG
Original Assignee
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 AG filed Critical Siemens AG
Publication of GB1281325A publication Critical patent/GB1281325A/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
    • 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
    • H03F1/42—Modifications of amplifiers to extend the bandwidth
    • H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

1281325 Transistor amplifier circuits SIEMENS AG 12 Jan 1970 [13 Jan 1969] 1353/70 Heading H3T In a transistor, multistage, wideband amplifier (a few Hz to 10 MHz) having negative feedback for A.C. and D.C. and input and output terminals connected via coupling capacitors, the time constant defined by the imput impedance and capacitor is different from the time constant defined by the output impedance and capacitor by a factor of at least twenty. The object is to reduce overshoot in the output. In the circuit shown the input stage I has capacitor C1 and transistor Ts1 stabilized by a forward biased diode Gr1. It is coupled to an intermediate stage II transistor Ts2 by Zener diode ZD1 and C2, and this is connected to an output stage III comprising push-pull transistors Ts3, Ts4 connected to output terminal A via capacitors C7, C9. The feedback path comprises network G. In Fig, 2 (not shown) a further stage is added (IV), the feedback path includes an additional, variable, capacitor (C4) and additional outputs are provided (B, C). These are a "measuring output" in parallel with A and an "analyser output" connected to Ts4 only via an auto transformer (T1). In this case also the supply is connected via a stage (S) comprising two transistors to provide a smooth, low-ohmic source.
GB135370A 1969-01-13 1970-01-12 Improvements in or relating to multistage transistorised a.c. voltage amplifiers Expired GB1281325A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691901433 DE1901433C3 (en) 1969-01-13 1969-01-13 Multi-stage transistorized AC voltage amplifier with DC voltage-free input and output

Publications (1)

Publication Number Publication Date
GB1281325A true GB1281325A (en) 1972-07-12

Family

ID=5722250

Family Applications (1)

Application Number Title Priority Date Filing Date
GB135370A Expired GB1281325A (en) 1969-01-13 1970-01-12 Improvements in or relating to multistage transistorised a.c. voltage amplifiers

Country Status (9)

Country Link
JP (1) JPS5534602B1 (en)
AT (1) AT294186B (en)
BE (1) BE744359A (en)
DE (1) DE1901433C3 (en)
FR (1) FR2028185A1 (en)
GB (1) GB1281325A (en)
NL (1) NL163686C (en)
SE (1) SE348335C (en)
YU (1) YU34948B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139032A (en) * 1983-04-26 1984-10-31 Citizen Watch Co Ltd Low power consumption power amplifier

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039965A (en) * 1976-04-20 1977-08-02 Tokyo Shibaura Electric Co., Ltd. Audio frequency transistor amplifier
DE3625213A1 (en) * 1986-07-25 1988-02-04 Ant Nachrichtentech Amplifier for amplifying signals in electrical communication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139032A (en) * 1983-04-26 1984-10-31 Citizen Watch Co Ltd Low power consumption power amplifier

Also Published As

Publication number Publication date
YU5770A (en) 1979-10-31
DE1901433B2 (en) 1973-06-07
SE348335C (en) 1974-07-22
SE348335B (en) 1972-08-28
NL163686B (en) 1980-04-15
DE1901433A1 (en) 1970-08-13
YU34948B (en) 1980-04-30
BE744359A (en) 1970-07-13
FR2028185A1 (en) 1970-10-09
DE1901433C3 (en) 1974-01-03
JPS5534602B1 (en) 1980-09-08
NL163686C (en) 1980-09-15
AT294186B (en) 1971-11-10
NL6919583A (en) 1970-07-15

Similar Documents

Publication Publication Date Title
GB1101875A (en) Amplifier
GB1334759A (en) Transistor amplifier
GB752981A (en) Improvements in or relating to amplifying cascades employing transistors
GB1281325A (en) Improvements in or relating to multistage transistorised a.c. voltage amplifiers
GB1229274A (en)
GB1035755A (en) Improvements in push-pull transistor amplifier arrangements without transformers
GB1311604A (en) Video electronic equipment
GB672373A (en) Improvements in or relating to thermionic valve circuit arrangements
CA2067581A1 (en) Equivalent inductance circuit
US3649760A (en) Bandpass amplifier circuit
GB1055411A (en) High input impedance direct-coupled transistor amplifier
GB1376954A (en) Line amplifier
GB773470A (en) Improvements in or relating to detector-circuit arrangements
GB1188567A (en) Improvements in Amplifier Circuits
GB849316A (en) Improvements in or relating to transistor amplifier circuits
GB662677A (en) Phase inverter system
GB1274270A (en) Improvements in or relating to electrical attenuation equalizer circuits
GB917194A (en) Improvements in or relating to negative feedback transistor amplifiers
GB749106A (en) Improvements in or relating to transistor cascade amplifiers
GB941115A (en) Improvements in frequency to voltage converters
GB857643A (en) Improvements in push-pull power amplifier
GB922862A (en) Improvements in or relating to amplifiers
GB681344A (en) Improvements relating to apparatus for reducing the distortion of an electronic amplifier
GB813944A (en) Improvements in or relating to transistor amplifiers
GB1070703A (en) Improvements in push-pull amplifiers

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee