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GB2116787A - Efficient current modulator useful with inductive loads - Google Patents

Efficient current modulator useful with inductive loads

Info

Publication number
GB2116787A
GB2116787A GB08312199A GB8312199A GB2116787A GB 2116787 A GB2116787 A GB 2116787A GB 08312199 A GB08312199 A GB 08312199A GB 8312199 A GB8312199 A GB 8312199A GB 2116787 A GB2116787 A GB 2116787A
Authority
GB
United Kingdom
Prior art keywords
coil
load
current
power supply
current modulator
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.)
Withdrawn
Application number
GB08312199A
Other versions
GB8312199D0 (en
Inventor
Joe E Deavenport
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.)
Gould Inc
Original Assignee
Gould 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 Gould Inc filed Critical Gould Inc
Publication of GB8312199D0 publication Critical patent/GB8312199D0/en
Publication of GB2116787A publication Critical patent/GB2116787A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Amplifiers (AREA)
  • Electronic Switches (AREA)
  • Inverter Devices (AREA)

Abstract

A current modulator for modulating the current flowing through a load (12) from a DC power supply (Vs) to circuit ground. A switching device (Q1) is connected between the load (12) and circuit ground for varying the current through the load (12) in response to a modulating signal (14) applied to the switching device (Q1). A first inductance coil (L1) is connected between the switching device (Q1) and the load (12). A second inductance coil (L2) is mutally coupled to the first coil (L1) for receiving energy induced in the first coil (L1) by the current variations. The second coil (L2) is conductively isolated from the first coil (L1). A diode (D2) is connected between the second coil (L2) and the power supply side of the load (12) for transferring the received energy back to the power supply side of the load (12).
GB08312199A 1981-09-16 1982-09-14 Efficient current modulator useful with inductive loads Withdrawn GB2116787A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30249281A 1981-09-16 1981-09-16
PCT/US1982/001243 WO1983001157A1 (en) 1981-09-16 1982-09-14 Efficient current modulator useful with inductive loads

Publications (2)

Publication Number Publication Date
GB8312199D0 GB8312199D0 (en) 1983-06-08
GB2116787A true GB2116787A (en) 1983-09-28

Family

ID=23167945

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08312199A Withdrawn GB2116787A (en) 1981-09-16 1982-09-14 Efficient current modulator useful with inductive loads

Country Status (5)

Country Link
JP (1) JPS58501492A (en)
FR (1) FR2513045A1 (en)
GB (1) GB2116787A (en)
IT (1) IT8249128A0 (en)
WO (1) WO1983001157A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0350115A1 (en) * 1988-07-06 1990-01-10 Whirlpool Europe B.V. A power supply circuit in microwave

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3485409D1 (en) * 1983-10-28 1992-02-13 Hitachi Ltd SEMICONDUCTOR SWITCHING DEVICE.
US5982639A (en) * 1997-11-04 1999-11-09 Power Integrations, Inc. Two switch off-line switching converter
US6226190B1 (en) 1998-02-27 2001-05-01 Power Integrations, Inc. Off-line converter with digital control
US6876181B1 (en) 1998-02-27 2005-04-05 Power Integrations, Inc. Off-line converter with digital control
US6107851A (en) * 1998-05-18 2000-08-22 Power Integrations, Inc. Offline converter with integrated softstart and frequency jitter
US7233504B2 (en) 2005-08-26 2007-06-19 Power Integration, Inc. Method and apparatus for digital control of a switching regulator
US8018694B1 (en) 2007-02-16 2011-09-13 Fairchild Semiconductor Corporation Over-current protection for a power converter
US7719243B1 (en) 2007-11-21 2010-05-18 Fairchild Semiconductor Corporation Soft-start system and method for power converter
US7872883B1 (en) 2008-01-29 2011-01-18 Fairchild Semiconductor Corporation Synchronous buck power converter with free-running oscillator
US7723972B1 (en) 2008-03-19 2010-05-25 Fairchild Semiconductor Corporation Reducing soft start delay and providing soft recovery in power system controllers

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB778543A (en) * 1956-01-27 1957-07-10 Mullard Radio Valve Co Ltd Improvements in or relating to direct current converters
DE2035878A1 (en) * 1969-08-28 1971-03-11 Zentronik Veb K Circuit arrangement for increasing the edge steepness when switching a stream in two or more inductive resistors were
SE386783B (en) * 1974-04-05 1976-08-16 S Linnman COUPLING DEVICE, INCLUDING SWITCH
GB1576278A (en) * 1977-02-28 1980-10-08 Thorn Automation Ltd Transistor power stages
GB1598679A (en) * 1977-09-15 1981-09-23 Plessey Co Ltd Digital data transmission system line driver circuits
JPS5538692A (en) * 1978-09-12 1980-03-18 Michinori Moriki Drive control system
JPS6029253B2 (en) * 1979-03-02 1985-07-09 株式会社モリタ製作所 switching circuit
US4268898A (en) * 1980-03-20 1981-05-19 Lorain Products Corporation Semiconductor switching circuit with clamping and energy recovery features
US4336587A (en) * 1981-06-29 1982-06-22 Boettcher Jr Charles W High efficiency turn-off loss reduction network with active discharge of storage capacitor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0350115A1 (en) * 1988-07-06 1990-01-10 Whirlpool Europe B.V. A power supply circuit in microwave
JP2765727B2 (en) 1988-07-06 1998-06-18 ワールプール ヨーロッパ ベスローテン フェンノートシャップ Power supply circuit

Also Published As

Publication number Publication date
WO1983001157A1 (en) 1983-03-31
FR2513045A1 (en) 1983-03-18
GB8312199D0 (en) 1983-06-08
JPS58501492A (en) 1983-09-01
IT8249128A0 (en) 1982-09-16

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)