GB1165928A - Method and Circuit Arrangement concerned with Changing a Frequency of a Resonant Circuit - Google Patents

Method and Circuit Arrangement concerned with Changing a Frequency of a Resonant Circuit

Info

Publication number
GB1165928A
GB1165928A GB57572/66A GB5757266A GB1165928A GB 1165928 A GB1165928 A GB 1165928A GB 57572/66 A GB57572/66 A GB 57572/66A GB 5757266 A GB5757266 A GB 5757266A GB 1165928 A GB1165928 A GB 1165928A
Authority
GB
United Kingdom
Prior art keywords
voltage
capacitor
switch
frequency
transistor
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
GB57572/66A
Other languages
English (en)
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB1165928A publication Critical patent/GB1165928A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits
    • 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
    • H03B5/02—Details
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
    • H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
    • H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Electronic Switches (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
GB57572/66A 1965-12-22 1966-12-22 Method and Circuit Arrangement concerned with Changing a Frequency of a Resonant Circuit Expired GB1165928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE16670/65A SE306962B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1965-12-22 1965-12-22

Publications (1)

Publication Number Publication Date
GB1165928A true GB1165928A (en) 1969-10-01

Family

ID=20302587

Family Applications (1)

Application Number Title Priority Date Filing Date
GB57572/66A Expired GB1165928A (en) 1965-12-22 1966-12-22 Method and Circuit Arrangement concerned with Changing a Frequency of a Resonant Circuit

Country Status (6)

Country Link
US (1) US3386051A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1285022B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DK (1) DK114564B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1165928A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO (1) NO115112B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE306962B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1127983A (en) * 1966-02-04 1968-09-25 Gen Electric Co Ltd Improvements in or relating to electric switching circuits
GB1194949A (en) * 1968-01-31 1970-06-17 Citizen Watch Co Ltd Method of Temperature Compensating Oscillation Circuit for Timepiece and Device Therefor
US3875526A (en) * 1973-08-02 1975-04-01 Gte Automatic Electric Lab Inc Two-frequency alternate tone generator
US4682344A (en) * 1985-07-30 1987-07-21 Amp Incorporated Rf fsk transmitter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1073042B (de) * 1958-09-27 1960-01-14 Standard Elektrik Lorenz Aktiengesellschaft, Stuttgart-Zuffenhausen Frequenzregelungsanordnung nach dem Prinzip der Stromzuflußwinkelsteuerung, vorzugsweise für den m- und dm- Bereich von Fernseh-Empfängern

Also Published As

Publication number Publication date
DE1285022B (de) 1968-12-12
DK114564B (da) 1969-07-14
SE306962B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1968-12-16
US3386051A (en) 1968-05-28
NO115112B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1968-07-29

Similar Documents

Publication Publication Date Title
US2653254A (en) Nonlinear resonant flip-flop circuit
US3835368A (en) Voltage regulator for a direct current power supply
GB1536627A (en) Electronic switching device
GB987590A (en) Improvements in or relating to the control of current in plasma
GB1083421A (en) Improvements in "power control circuits"
GB882126A (en) Improvements in or relating to electrical inverter systems
SE7907674L (sv) Var-generator med stromkenslig induktansbrytpunkt
GB1165928A (en) Method and Circuit Arrangement concerned with Changing a Frequency of a Resonant Circuit
GB1014580A (en) Improvements in or relating to current converters including inverter stages
GB1204692A (en) Load-matched inverters
GB1203502A (en) Multiple output voltage multiplier
GB1094010A (en) Improved inductive reactance circuit
FR1454237A (fr) Circuits de conservation d'énergie pour une charge capacitive
GB1158035A (en) Rectifier Circuits
JPS5639620A (en) Flip-flop circuit
SU993221A1 (ru) Импульсный стабилизатор переменного напр жени
GB869454A (en) Electrical inverter systems employing semiconductor devices
GB1109450A (en) Improvements in and relating to frequency modulated electrical circuits
SU1317595A2 (ru) Преобразователь напр жени
JPS55100072A (en) Inverter
GB1099375A (en) Electrically-controlled switching circuit
GB940394A (en) An electric switching arrangement
JPS54108219A (en) Inverter device
Howson Generation of AC, or a Specified Harmonic, using DC Power and a Single Switch
GB1161563A (en) Electric Discriminator Circuits

Legal Events

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