GB1150718A - Improvements in or relating to Transistor Oscillators - Google Patents

Improvements in or relating to Transistor Oscillators

Info

Publication number
GB1150718A
GB1150718A GB22514/66A GB2251466A GB1150718A GB 1150718 A GB1150718 A GB 1150718A GB 22514/66 A GB22514/66 A GB 22514/66A GB 2251466 A GB2251466 A GB 2251466A GB 1150718 A GB1150718 A GB 1150718A
Authority
GB
United Kingdom
Prior art keywords
transistor
oscillator
frequency
inductance
circuit including
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
GB22514/66A
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.)
Telefunken Patentverwertungs GmbH
Original Assignee
Telefunken Patentverwertungs GmbH
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 Telefunken Patentverwertungs GmbH filed Critical Telefunken Patentverwertungs GmbH
Publication of GB1150718A publication Critical patent/GB1150718A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
    • H03K4/60—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor
    • H03K4/69—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor using a semiconductor device operating as an amplifier
    • H03K4/72—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor using a semiconductor device operating as an amplifier combined with means for generating the driving pulses
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/30—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using a transformer for feedback, e.g. blocking oscillator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

1,150,718. Transistor oscillator circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 20 May, 1966 [20 May, 1965], No. 22514/66. Heading H3T. In an oscillator circuit including a transistor 1, an oscillatory circuit including inductance 2 and capacitance 3, a feedback circuit including a phase shifting capacitance 5 connect to a tap on the inductance 2 and to the emitter of the transistor 1 and means U R for applying a control voltage to the base of the transistor to control the frequency of the oscillator, the arrangement is such that the phase-shifting capacitance 5 is caused to resonate with that part 4 of the inductance 2 connected in series with it, at a harmonic of the frequency of the oscillatory circuit 2, 3 so as to steepen a portion of the output oscillation. The collector output voltage (Fig. 5A, not shown), may be shaped by a limiter valve 15 or a driver transistor (20, Fig. 4, not shown), for feeding a line deflection output circuit of a T.V. display arrangement. The oscillator is set to oscillate at a mid-frequency by a variable resistance 11 and then varied about this frequency by the control voltage U R . The capacitor 5, emitter resistor 7 and internal resistance of the transistor are arranged to provide a phase shift between the collector and emitter voltages which differs from 90 degrees. In a modified oscillator (Fig. 2, not shown), an NPN transistor is used.
GB22514/66A 1965-05-20 1966-05-20 Improvements in or relating to Transistor Oscillators Expired GB1150718A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET28625A DE1219072B (en) 1965-05-20 1965-05-20 Transistor oscillator

Publications (1)

Publication Number Publication Date
GB1150718A true GB1150718A (en) 1969-04-30

Family

ID=7554296

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22514/66A Expired GB1150718A (en) 1965-05-20 1966-05-20 Improvements in or relating to Transistor Oscillators

Country Status (4)

Country Link
AT (1) AT259039B (en)
DE (1) DE1219072B (en)
ES (1) ES326896A1 (en)
GB (1) GB1150718A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1150407B (en) * 1961-12-11 1963-06-20 Siemens Ag Pulse generator circuit

Also Published As

Publication number Publication date
AT259039B (en) 1967-12-27
ES326896A1 (en) 1967-03-16
DE1219072B (en) 1966-06-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees