FR2397103A1 - MODULATION CIRCUIT BY PULSE DURATION - Google Patents

MODULATION CIRCUIT BY PULSE DURATION

Info

Publication number
FR2397103A1
FR2397103A1 FR7820723A FR7820723A FR2397103A1 FR 2397103 A1 FR2397103 A1 FR 2397103A1 FR 7820723 A FR7820723 A FR 7820723A FR 7820723 A FR7820723 A FR 7820723A FR 2397103 A1 FR2397103 A1 FR 2397103A1
Authority
FR
France
Prior art keywords
pulse
anode
circuit
modulation circuit
pulse duration
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.)
Granted
Application number
FR7820723A
Other languages
French (fr)
Other versions
FR2397103B1 (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.)
Patelhold Patenverwertungs and Elektro-Holding AG
Original Assignee
Patelhold Patenverwertungs and Elektro-Holding 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 Patelhold Patenverwertungs and Elektro-Holding AG filed Critical Patelhold Patenverwertungs and Elektro-Holding AG
Publication of FR2397103A1 publication Critical patent/FR2397103A1/en
Application granted granted Critical
Publication of FR2397103B1 publication Critical patent/FR2397103B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/16—Amplitude modulation by means of discharge device having at least three electrodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/80—Generating trains of sinusoidal oscillations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/08—Duration or width modulation ; Duty cycle modulation

Landscapes

  • Amplifiers (AREA)
  • Magnetic Treatment Devices (AREA)
  • Particle Accelerators (AREA)

Abstract

Ce circuit est du type de ceux comprenant un redresseur, un tube modulateur commandé par impulsions, une bobine d'impulsions, une unité de préparation des impulsions, un filtre passe-bas, un étage HF modulé par l'anode et une diode roue libre. Dans le circuit selon l'invention, la bobine d'impulsions SS est, par une des extrémités de son unique enroulement, mise à la masse et à la cathode de l'étage HF, tandis que l'autre extrémité de cet enroulement est reliée à l'anode du tube modulateur PR et à l'anode de la diode roue libre FD. Ce circuit peut utiliser une fréquence d'impulsions élevée et les étages HF y peuvent fonctionner avec les cathodes du potentiel de la masse.This circuit is of the type comprising a rectifier, a pulse-controlled modulator tube, a pulse coil, a pulse preparation unit, a low-pass filter, an HF stage modulated by the anode and a freewheeling diode. . In the circuit according to the invention, the pulse coil SS is, by one end of its single winding, grounded and to the cathode of the HF stage, while the other end of this winding is connected to the anode of the modulator tube PR and to the anode of the freewheeling diode FD. This circuit can use a high pulse frequency and the HF stages in it can operate with the cathodes of ground potential.

FR7820723A 1977-07-07 1978-07-05 MODULATION CIRCUIT BY PULSE DURATION Granted FR2397103A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH838477A CH622390A5 (en) 1977-07-07 1977-07-07 Pulse width modulation circuit

Publications (2)

Publication Number Publication Date
FR2397103A1 true FR2397103A1 (en) 1979-02-02
FR2397103B1 FR2397103B1 (en) 1982-10-22

Family

ID=4339490

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7820723A Granted FR2397103A1 (en) 1977-07-07 1978-07-05 MODULATION CIRCUIT BY PULSE DURATION

Country Status (5)

Country Link
JP (1) JPS5418268A (en)
CH (1) CH622390A5 (en)
DE (1) DE2741038C2 (en)
FR (1) FR2397103A1 (en)
GB (1) GB1593637A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2577732A1 (en) * 1985-02-15 1986-08-22 Thomson Csf AUDIO FREQUENCY SIGNAL PRECORRECTING DEVICE IN AMPLITUDE MODULATION AMPLITUDE RADIO SIGNAL TRANSMITTER EMITTING WIDTH MODULATION CHAIN

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3172018D1 (en) * 1980-06-18 1985-10-03 Marconi Co Ltd A pulse width modulation system
DE3172506D1 (en) * 1980-06-18 1985-11-07 Marconi Co Ltd Circuit for supplying an amplitude modulated current to an r.f. stage of a radio transmitter
CN106199154B (en) * 2016-08-31 2023-03-24 深圳市英朗光电有限公司 Commercial power high-speed monitoring system of emergency lighting power supply

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE861873C (en) * 1943-07-14 1953-01-05 Philips Nv Circuit for modulating electrical vibrations
DE1808578A1 (en) * 1968-11-13 1970-05-27 Harris Intertype Corp High efficiency transmitter
US3588744A (en) * 1969-11-07 1971-06-28 Gates Radio Co Amplitude compensated pulse duration modulator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1218557B (en) * 1963-02-08 1966-06-08 Telefunken Patent Modulation circuit for anode voltage modulation of a high-frequency transmitter output stage
DE1270130B (en) * 1963-10-10 1968-06-12 Telefunken Patent Method for generating an amplitude-modulated high-frequency oscillation of high power with high efficiency and circuit for its implementation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE861873C (en) * 1943-07-14 1953-01-05 Philips Nv Circuit for modulating electrical vibrations
DE1808578A1 (en) * 1968-11-13 1970-05-27 Harris Intertype Corp High efficiency transmitter
US3588744A (en) * 1969-11-07 1971-06-28 Gates Radio Co Amplitude compensated pulse duration modulator

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
NV1234/76 *
NV737/76 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2577732A1 (en) * 1985-02-15 1986-08-22 Thomson Csf AUDIO FREQUENCY SIGNAL PRECORRECTING DEVICE IN AMPLITUDE MODULATION AMPLITUDE RADIO SIGNAL TRANSMITTER EMITTING WIDTH MODULATION CHAIN
EP0196239A1 (en) * 1985-02-15 1986-10-01 Thomson-Csf Audio frequency signal predistortion apparatus in a pulse width modulation system of an AM radiotransmitter

Also Published As

Publication number Publication date
DE2741038C2 (en) 1986-08-14
DE2741038A1 (en) 1979-01-25
FR2397103B1 (en) 1982-10-22
CH622390A5 (en) 1981-03-31
JPS5418268A (en) 1979-02-10
GB1593637A (en) 1981-07-22

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Legal Events

Date Code Title Description
ST Notification of lapse