ES488449A0 - A PERFECT AMPLIFIER DEVICE - Google Patents

A PERFECT AMPLIFIER DEVICE

Info

Publication number: ES488449A0
Authority: ES; Spain
Prior art keywords: amplifier device; perfect; perfect amplifier; amplifier
Prior art date: 1979-02-13
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

ES488449A

Other languages

Spanish (es)

Other versions

ES8102434A1 (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.)

Koninklijke Philips NV

Original Assignee

Philips Gloeilampenfabrieken NV

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.)

1979-02-13

Filing date

1980-02-11

Publication date

1980-12-16

1980-02-11 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1980-12-16 Publication of ES8102434A1 publication Critical patent/ES8102434A1/en

1980-12-16 Publication of ES488449A0 publication Critical patent/ES488449A0/en

Status Granted legal-status Critical Current

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
- H03F1/0216—Continuous control
- H03F1/0222—Continuous control by using a signal derived from the input signal
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/15—Indexing scheme relating to amplifiers the supply or bias voltage or current at the drain side of a FET being continuously controlled by a controlling signal
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/228—A measuring circuit being coupled to the input of an amplifier

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Amplifiers (AREA)

ES488449A 1979-02-13 1980-02-11 A PERFECT AMPLIFIER DEVICE Granted ES488449A0 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7901118A NL7901118A (en)	1979-02-13	1979-02-13	AMPLIFIER CONTAINING A POWER SUPPLY CIRCUIT AND A CONNECTED AMPLIFIER STAGE.

Publications (2)

Publication Number	Publication Date
ES8102434A1 ES8102434A1 (en)	1980-12-16
ES488449A0 true ES488449A0 (en)	1980-12-16

Family

ID=19832627

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ES488449A Granted ES488449A0 (en)	1979-02-13	1980-02-11	A PERFECT AMPLIFIER DEVICE

Country Status (9)

Country	Link
JP (1)	JPS55109006A (en)
AU (1)	AU5537080A (en)
DE (1)	DE3003833A1 (en)
ES (1)	ES488449A0 (en)
FR (1)	FR2449362A1 (en)
GB (1)	GB2043382A (en)
IT (1)	IT1193375B (en)
NL (1)	NL7901118A (en)
SE (1)	SE8001041L (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH664655A5 (en) *	1980-12-12	1988-03-15	Patelhold Patentverwertung	METHOD AND AMPLIFIER CIRCUIT FOR THE AMPLIFICATION OF ELECTRICAL SIGNALS, IN PARTICULAR LF MODULATION SIGNALS OF A BROADCASTING TRANSMITTER.
NL8203428A (en) *	1982-09-02	1984-04-02	Philips Nv	DEVICE FOR CONVERTING AN ELECTRIC SIGNAL TO AN ACOUSTIC SIGNAL.
IT1200794B (en) *	1985-10-16	1989-01-27	Sgs Microelettronica Spa	DEVICE TO INCREASE THE OUTPUT POWER OF A LOW VOLTAGE POWERED RADIO EQUIPMENT, PARTICULARLY OF THE RADIO TYPE
KR920017329A (en) *	1991-02-22	1992-09-26	원본미기재	Adaptive voltage regulator
GB2275384A (en) *	1993-02-22	1994-08-24	Thomson Consumer Electronics	Controlling amplifier power supply in dependence on signal level
GB2360410A (en) *	2000-03-18	2001-09-19	Univ Bristol	An amplifier in which the input signal is delayed to allow time for the power supply to adjust to a level which minimises power loss
US8362838B2 (en) *	2007-01-19	2013-01-29	Cirrus Logic, Inc.	Multi-stage amplifier with multiple sets of fixed and variable voltage rails
US9184705B2 (en)	2013-03-15	2015-11-10	Bose Corporation	Feedback mechanism for boost-on-demand amplifiers
US9154095B2 (en)	2013-03-15	2015-10-06	Bose Corporation	Boost-on-demand amplifier

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2705775A (en) *	1952-03-27	1955-04-05	Murray G Crosby	Modulated wave amplifier
US3426266A (en) *	1966-03-22	1969-02-04	Collins Radio Co	Signal modulated self-regulated switching voltage regulatoramplifier
US3486128A (en) *	1968-02-07	1969-12-23	Us Army	Power amplifier for amplitude modulated transmitter
SE370300B (en) *	1969-12-16	1974-10-07	Western Electric Co
FR2109336A5 (en) *	1970-10-13	1972-05-26	Thomson Csf
US3753138A (en) *	1971-06-03	1973-08-14	Ampex	Amplifier system with continuously variable supply
DE2137249C3 (en) *	1971-07-26	1982-10-28	Deutsche Automobilgesellschaft Mbh, 3000 Hannover	Circuit for reducing the power loss in power output stages of DC amplifiers with limitation of the output current
JPS51121239A (en) *	1975-04-17	1976-10-23	Sony Corp	An amplification circuit
JPS6115620Y2 (en) *	1976-03-02	1986-05-15
JPS52132660A (en) *	1976-04-28	1977-11-07	Matsushita Electric Ind Co Ltd	Power amplifier

1979
- 1979-02-13 NL NL7901118A patent/NL7901118A/en not_active Application Discontinuation
1980
- 1980-02-02 DE DE19803003833 patent/DE3003833A1/en not_active Withdrawn
- 1980-02-08 IT IT19824/80A patent/IT1193375B/en active
- 1980-02-08 AU AU55370/80A patent/AU5537080A/en not_active Abandoned
- 1980-02-08 GB GB8004284A patent/GB2043382A/en active Pending
- 1980-02-11 ES ES488449A patent/ES488449A0/en active Granted
- 1980-02-11 FR FR8002982A patent/FR2449362A1/en not_active Withdrawn
- 1980-02-11 SE SE8001041A patent/SE8001041L/en unknown
- 1980-02-13 JP JP1560480A patent/JPS55109006A/en active Pending

Also Published As

Publication number	Publication date
NL7901118A (en)	1980-08-15
DE3003833A1 (en)	1980-08-14
SE8001041L (en)	1980-08-14
IT1193375B (en)	1988-06-15
FR2449362A1 (en)	1980-09-12
AU5537080A (en)	1980-08-21
JPS55109006A (en)	1980-08-21
ES8102434A1 (en)	1980-12-16
GB2043382A (en)	1980-10-01
IT8019824A0 (en)	1980-02-08

Publication	Publication Date	Title
ES487277A0 (en)	1980-12-16	A CHICHARRA DEVICE
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ES259702Y (en)	1982-11-01	A SUPPORT DEVICE.
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ES255192Y (en)	1981-11-16	A PLANNING DEVICE
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ES491701A0 (en)	1981-03-16	A PERFECT STERILIZER APPARATUS
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IT7968345A0 (en)	1979-06-25	DEMAGNETIZING DEVICE
ES488449A0 (en)	1980-12-16	A PERFECT AMPLIFIER DEVICE
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ES489343A0 (en)	1981-05-16	A PERFECT TAPE CONVEYOR DEVICE
BR7906462A (en)	1980-12-02	ELECTRO-MAGENTIC DEVICE
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IT1141425B (en)	1986-10-01	MEDIUM DISTANCE TRANSPORT DEVICE