FR1591798A - - Google Patents

Info

Publication number
FR1591798A
FR1591798A FR173731A FR1591798DA FR1591798A FR 1591798 A FR1591798 A FR 1591798A FR 173731 A FR173731 A FR 173731A FR 1591798D A FR1591798D A FR 1591798DA FR 1591798 A FR1591798 A FR 1591798A
Authority
FR
France
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
FR173731A
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 filed Critical
Application granted granted Critical
Publication of FR1591798A publication Critical patent/FR1591798A/fr
Expired 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
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/16—Amplitude modulation by means of discharge device having at least three electrodes
    • H03C1/18—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid
    • H03C1/26—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid modulating signal applied to cathode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F5/00—Amplifiers with both discharge tubes and semiconductor devices as amplifying elements
    • 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
FR173731A 1966-02-10 1968-11-14 Expired FR1591798A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52661066A 1966-02-10 1966-02-10

Publications (1)

Publication Number Publication Date
FR1591798A true FR1591798A (fr) 1970-05-04

Family

ID=24098034

Family Applications (1)

Application Number Title Priority Date Filing Date
FR173731A Expired FR1591798A (fr) 1966-02-10 1968-11-14

Country Status (5)

Country Link
US (1) US3506920A (fr)
CH (1) CH482353A (fr)
FR (1) FR1591798A (fr)
GB (1) GB1246140A (fr)
NL (1) NL157759B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2286547A1 (fr) * 1974-09-30 1976-04-23 Westinghouse Electric Corp Dispositif regulateur de puissance et de modulation
FR2386935A1 (fr) * 1977-04-05 1978-11-03 Licentia Gmbh Amplificateur de modulation
FR2418979A1 (fr) * 1978-03-02 1979-09-28 Marconi Co Ltd Circuit de modulation en amplitude
FR2425765A1 (fr) * 1978-05-13 1979-12-07 Marconi Co Ltd Circuit de modulation
FR2469827A1 (fr) * 1979-11-13 1981-05-22 Burr Brown Res Corp Amplificateur d'isolement et procede de mise en oeuvre d'un circuit comportant un tel amplificateur

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063199A (en) * 1977-02-10 1977-12-13 Rca Corporation Radio frequency pulse width amplitude modulation system
US4122415A (en) * 1977-03-21 1978-10-24 Rca Corporation AM transmitter with an offset voltage to the RF stage to compensate for switching time of the modulators
US4220925A (en) * 1977-07-11 1980-09-02 Rca Corporation Encoding analog signals into digital signals using a triangular reference
US4314374A (en) * 1977-11-10 1982-02-02 Westinghouse Air Brake Company High power audio frequency transmitter
US4319359A (en) * 1980-04-10 1982-03-09 Rca Corporation Radio transmitter energy recovery system
JPS5742214A (en) * 1980-08-27 1982-03-09 Sony Corp Power amplifier
US4524335A (en) * 1982-03-13 1985-06-18 Nippon Gakki Seizo Kabushiki Kaisha Pulse-width modulation circuit with carrier signal frequency control
US4776036A (en) * 1986-02-25 1988-10-04 Varian Associates, Inc. RF-AM transmitter with pulse width modulator
JPS62200919A (ja) * 1986-02-25 1987-09-04 コンチネンタル・エレクトロニクス・コーポレイション パルス幅変調器を有するｒｆ−ａｍ送信器
US4896372A (en) * 1986-02-25 1990-01-23 Varian Associates, Inc. Pulse width modulator for AM-RF transmitter
US5099203A (en) * 1990-06-05 1992-03-24 Continental Electronics Corporation Power amplifier having multiple switched stages and method of operating same
US6459336B1 (en) 2000-10-11 2002-10-01 Harris Corporation RF amplifier system having PDM drive
ITTO20050402A1 (it) * 2005-06-10 2006-12-11 Selenia Comm S P A Convertitore di potenza ad alta efficienza, modulatore e trasmettitore che lo utilizzano

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2227596A (en) * 1938-03-31 1941-01-07 Rca Corp Signaling system
US2263276A (en) * 1939-02-16 1941-11-18 Rca Corp Modulated carrier wave transmitter
US2338512A (en) * 1942-10-22 1944-01-04 Westinghouse Electric & Mfg Co Telephone transmitter circuit
US2990516A (en) * 1956-05-29 1961-06-27 John C Simons Jr Pulse-width modulated amplifier and method
US3167720A (en) * 1961-02-10 1965-01-26 Transis Tronics Inc Power amplification means
GB1082325A (en) * 1963-10-10 1967-09-06 Telefunken Patent Improvements in or relating to modulated high-frequency circuit arrangements
US3336538A (en) * 1964-08-13 1967-08-15 Norman H Crowhurst Two-state power amplifier with transitional feedback
US3366882A (en) * 1964-12-21 1968-01-30 Automatic Elect Lab Pam and pwm dual modulation arrangement for doubling channel capacity
US3348151A (en) * 1965-03-08 1967-10-17 Boeing Co Dc power supply and amplitude modulator
US3384838A (en) * 1965-03-19 1968-05-21 Sylvania Electric Prod Phase reversible switching power amplifier

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2286547A1 (fr) * 1974-09-30 1976-04-23 Westinghouse Electric Corp Dispositif regulateur de puissance et de modulation
FR2386935A1 (fr) * 1977-04-05 1978-11-03 Licentia Gmbh Amplificateur de modulation
FR2418979A1 (fr) * 1978-03-02 1979-09-28 Marconi Co Ltd Circuit de modulation en amplitude
FR2425765A1 (fr) * 1978-05-13 1979-12-07 Marconi Co Ltd Circuit de modulation
FR2469827A1 (fr) * 1979-11-13 1981-05-22 Burr Brown Res Corp Amplificateur d'isolement et procede de mise en oeuvre d'un circuit comportant un tel amplificateur

Also Published As

Publication number Publication date
NL157759B (nl) 1978-08-15
US3506920A (en) 1970-04-14
NL6817373A (fr) 1970-06-08
CH482353A (de) 1969-11-30
GB1246140A (en) 1971-09-15

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Legal Events

Date Code Title Description
ST Notification of lapse