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GB2230672A - A switchable dc power supply with increased efficiency for use in large wattage amplifiers - Google Patents

A switchable dc power supply with increased efficiency for use in large wattage amplifiers

Info

Publication number
GB2230672A
GB2230672A GB9006948A GB9006948A GB2230672A GB 2230672 A GB2230672 A GB 2230672A GB 9006948 A GB9006948 A GB 9006948A GB 9006948 A GB9006948 A GB 9006948A GB 2230672 A GB2230672 A GB 2230672A
Authority
GB
United Kingdom
Prior art keywords
power supply
switchable
amplifiers
increased efficiency
fet
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
GB9006948A
Other versions
GB2230672B (en
GB9006948D0 (en
Inventor
Gerald R Stanley
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.)
Crown International Inc
Original Assignee
Crown International Inc
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 Crown International Inc filed Critical Crown International Inc
Publication of GB9006948D0 publication Critical patent/GB9006948D0/en
Publication of GB2230672A publication Critical patent/GB2230672A/en
Application granted granted Critical
Publication of GB2230672B publication Critical patent/GB2230672B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/618—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series and in parallel with the load as final control devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Amplifiers (AREA)
  • Dc-Dc Converters (AREA)

Abstract

A switch (FET) connected between two voltage sources (V1, V2) and responsive to a sensing circuit (18). The switch (FET) includes a transistor (FET) which operates to interchange the electrical connection of the two voltage sources (V1, V2) from parallel to series upon the sensing circuit signals the need for more voltage. The two sources (V1, V2) are normally in parallel to increase the cost efficiency and energy efficiency of the amplifier and power supply.
GB9006948A 1988-08-22 1990-03-28 Improvements relating to amplifiers Expired - Lifetime GB2230672B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1988/002873 WO1990002443A1 (en) 1988-08-22 1988-08-22 A switchable dc power supply with increased efficiency for use in large wattage amplifiers

Publications (3)

Publication Number Publication Date
GB9006948D0 GB9006948D0 (en) 1990-08-01
GB2230672A true GB2230672A (en) 1990-10-24
GB2230672B GB2230672B (en) 1993-04-28

Family

ID=22208860

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9006948A Expired - Lifetime GB2230672B (en) 1988-08-22 1990-03-28 Improvements relating to amplifiers

Country Status (8)

Country Link
JP (1) JPH02502690A (en)
AU (1) AU625659B2 (en)
CA (1) CA1318945C (en)
DE (2) DE3891380T1 (en)
FR (1) FR2636181B1 (en)
GB (1) GB2230672B (en)
NL (1) NL193075C (en)
WO (1) WO1990002443A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU630758B2 (en) * 1989-11-04 1992-11-05 Yoshikazu Kuze Sealing means for a thermostat
US5818301A (en) * 1995-05-18 1998-10-06 Matsushita Electric Industrial Co., Ltd. Power amplifier arrangenment of a plural power supply switching type
DE102011011330B4 (en) * 2010-11-05 2018-02-08 Sew-Eurodrive Gmbh & Co Kg Buck converter
DE102011011329B4 (en) * 2010-11-05 2018-02-08 Sew-Eurodrive Gmbh & Co Kg Boost converter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459957A (en) * 1967-07-19 1969-08-05 Ite Imperial Corp Voltage regulator circuit
US3748500A (en) * 1971-12-22 1973-07-24 F Tam Multiple redundant power supply
US3871383A (en) * 1973-09-25 1975-03-18 Medcor Inc Power supply
US4315162A (en) * 1980-05-09 1982-02-09 Control Technology, Incorporated Reserve power supply for computers
US4339704A (en) * 1980-07-07 1982-07-13 General Electric Company Series parallel transition for power supply
US4412137A (en) * 1982-12-13 1983-10-25 Eaton Corporation Dual voltage engine starter management system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293301B (en) * 1964-02-20 1969-04-24 Gossen & Co Gmbh P Arrangement for series or parallel connection of transistorized power supplies
US3808545A (en) * 1972-10-04 1974-04-30 Int Radio & Electronics Corp High power bridge audio amplifier
JPS5935207B2 (en) * 1979-07-27 1984-08-27 ヤマハ株式会社 power amplifier
JPS57204609A (en) * 1981-06-10 1982-12-15 Nippon Gakki Seizo Kk Amplifier
JPS58200608A (en) * 1982-05-18 1983-11-22 Marantz Japan Inc Power amplifier
JPS5921106A (en) * 1982-07-27 1984-02-03 Pioneer Electronic Corp High efficiency power amplifier
JPS5962927A (en) * 1982-10-01 1984-04-10 Nippon Denso Co Ltd Solar battery package device
FR2557399B1 (en) * 1983-12-23 1990-05-04 Thomson Csf LINEAR POWER AMPLIFIER
CA1214228A (en) * 1985-04-23 1986-11-18 Min-Tai Hong Audio frequency amplifier supplied with dynamic power on demand
FR2583233B1 (en) * 1985-06-07 1992-05-15 Thomson Csf SWITCHED POWER AMPLIFIER
DE3530637A1 (en) * 1985-08-28 1987-03-12 Philips Patentverwaltung CIRCUIT ARRANGEMENT WITH A LOAD CONNECTED TO THE OUTPUT OF AN AMPLIFIER

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459957A (en) * 1967-07-19 1969-08-05 Ite Imperial Corp Voltage regulator circuit
US3748500A (en) * 1971-12-22 1973-07-24 F Tam Multiple redundant power supply
US3871383A (en) * 1973-09-25 1975-03-18 Medcor Inc Power supply
US4315162A (en) * 1980-05-09 1982-02-09 Control Technology, Incorporated Reserve power supply for computers
US4339704A (en) * 1980-07-07 1982-07-13 General Electric Company Series parallel transition for power supply
US4412137A (en) * 1982-12-13 1983-10-25 Eaton Corporation Dual voltage engine starter management system

Also Published As

Publication number Publication date
FR2636181A1 (en) 1990-03-09
JPH02502690A (en) 1990-08-23
NL193075C (en) 1998-09-08
NL8820727A (en) 1990-08-01
AU2527088A (en) 1990-03-23
CA1318945C (en) 1993-06-08
FR2636181B1 (en) 1995-12-01
NL193075B (en) 1998-05-06
WO1990002443A1 (en) 1990-03-08
DE3891380T1 (en) 1990-09-20
AU625659B2 (en) 1992-07-16
GB2230672B (en) 1993-04-28
GB9006948D0 (en) 1990-08-01
DE3891380C2 (en) 1995-02-16

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20080821