GB1074666A - Improvements in or relating to harmonic generators - Google Patents

Improvements in or relating to harmonic generators

Info

Publication number
GB1074666A
GB1074666A GB2568/66A GB256866A GB1074666A GB 1074666 A GB1074666 A GB 1074666A GB 2568/66 A GB2568/66 A GB 2568/66A GB 256866 A GB256866 A GB 256866A GB 1074666 A GB1074666 A GB 1074666A
Authority
GB
United Kingdom
Prior art keywords
circuit
diode
harmonic
jan
class
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
GB2568/66A
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 GB1074666A publication Critical patent/GB1074666A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • H03B19/06—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes
    • H03B19/14—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes by means of a semiconductor device
    • 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
    • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • H03B19/16—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source using uncontrolled rectifying devices, e.g. rectifying diodes or Schottky diodes
    • 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
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/006—Functional aspects of oscillators
    • H03B2200/007—Generation of oscillations based on harmonic frequencies, e.g. overtone oscillators

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

1,074,666. Transistor harmonic generator circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Jan. 19, 1966 [Jan. 23, 1965], No. 2568/66. Heading H3T. A harmonic generator of the type in which a ringing circuit is excited by a switching device (such as transistor Ts 1 ) has a diode in shunt with the ringing circuit so as to damp out oscillations after the first half-cycle and a temperature stabilized threshold circuit to remove spurious oscillation across the diode. As shown, T s1 is turned on by negative halfcycles of a 12 kc/s. square wave form a Schmitt circuit (not shown), giving a single half-cycle at a harmonic frequency across the circuit L 1 , C 2 . Further oscillation is minimized by diode D 1 and by transistors T s2' Ts 3 , which respectively operate in class AB and class C. The harmonic amplitude is stabilized against temperature by R 2 and by Ge diodes D 2 , D 3 which control the threshold of Ts 2 . Ts 3 may be biased by a potentiometer across D 2 , D 3 . The invention may be used as a carrier source in mobile telecommunications apparatus.
GB2568/66A 1965-01-23 1966-01-19 Improvements in or relating to harmonic generators Expired GB1074666A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET27878A DE1258916B (en) 1965-01-23 1965-01-23 Circuit arrangement for temperature-stable generation of harmonics of a fundamental frequency, in particular for carrier generation for mobile carrier frequency devices

Publications (1)

Publication Number Publication Date
GB1074666A true GB1074666A (en) 1967-07-05

Family

ID=7553775

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2568/66A Expired GB1074666A (en) 1965-01-23 1966-01-19 Improvements in or relating to harmonic generators

Country Status (2)

Country Link
DE (1) DE1258916B (en)
GB (1) GB1074666A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014029413A1 (en) * 2012-08-20 2014-02-27 Telefonaktiebolaget L M Ericsson (Publ) Device for frequency tripling
WO2016041575A1 (en) * 2014-09-16 2016-03-24 Telefonaktiebolaget L M Ericsson (Publ) A power efficient frequency multiplier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014029413A1 (en) * 2012-08-20 2014-02-27 Telefonaktiebolaget L M Ericsson (Publ) Device for frequency tripling
WO2016041575A1 (en) * 2014-09-16 2016-03-24 Telefonaktiebolaget L M Ericsson (Publ) A power efficient frequency multiplier

Also Published As

Publication number Publication date
DE1258916B (en) 1968-01-18

Similar Documents

Publication Publication Date Title
GB1490221A (en) Electronic monitoring apparatus which preferably works without being touched
GB1121439A (en) Electronic tunable oscillator circuit
GB945379A (en) Binary trigger
GB1074666A (en) Improvements in or relating to harmonic generators
GB1472495A (en) Compound transistor circuitry
GB1074975A (en) Improvements in or relating to pulse triggered oscillation generators
GB915162A (en) Improvements in pulse generators
GB1140667A (en) Electronic circuit
GB1275039A (en) Variable frequency oscillator
GB1387984A (en) Transistor oscillators
GB1115432A (en) Electronic switching apparatus
GB1098420A (en) Improvements in or relating to electric oscillators
GB926322A (en) Improvements in or relating to electrical resonant circuits
GB1077877A (en) Improvements in crystal oscillators
GB1093913A (en) Improvements in or relating to harmonic generators
GB1386641A (en) Semiconductor amplifying and rectifying circuit
GB1221551A (en) Improvements in or relating to an electromechanical oscillator
GB977768A (en) Improvements in or relating to electric oscillator circuits
GB842547A (en) Improvements in or relating to amplifiier devices including at least one transistor
GB1024821A (en) Transistor oscillator incorporating a starting circuit
GB1059606A (en) A ringer
GB801455A (en) Transistor-controlled oscillatory circuits
GB868995A (en) Improvements in and relating to frequency-changing circuits
GB1004491A (en) Improvements in and relating to oscillator circuits
GB1392876A (en) Method and device for generating electrical oscillations