GB2011730A - Saturable reactor for a regulated electrical power supply - Google Patents

Saturable reactor for a regulated electrical power supply

Info

Publication number
GB2011730A
GB2011730A GB7849088A GB7849088A GB2011730A GB 2011730 A GB2011730 A GB 2011730A GB 7849088 A GB7849088 A GB 7849088A GB 7849088 A GB7849088 A GB 7849088A GB 2011730 A GB2011730 A GB 2011730A
Authority
GB
United Kingdom
Prior art keywords
saturable reactor
power supply
control winding
modulator
inverter
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Withdrawn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
GB7849088A
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.)
Kyber Engineering Inc
Original Assignee
Kyber Engineering 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 Kyber Engineering Inc filed Critical Kyber Engineering Inc
Publication of GB2011730A publication Critical patent/GB2011730A/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Withdrawn legal-status Critical Current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
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/338—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
    • H02M3/3385—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement with automatic control of output voltage or current
    • H02M3/3387—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement with automatic control of output voltage or current in a push-pull configuration
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F2017/067—Core with two or more holes to lead through conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias

Abstract

A regulated power supply Fig. 1 includes a free-running inverter circuit 11 for generating a high frequency square wave signal that feeds a saturable reactor modulator 12 which pulse-width modulates the square wave as a function of a control current through a control winding on the saturable reactor, the modulated power being fed to a transformer/rectifier 14 and filter 15. A feedback circuit 16 supplies the control current to the control winding to regulate the output. An overvoltage protection circuit which inactivates the inverter is also provided. Details of the circuitry are provided as follows: Figs 5a and 5b (not shown) set out the whole system; Fig. 7 (not shown) gives a modification of the output end comprising elements 12, 14, 15 and 16; Fig. 8 (not shown) gives an alternative free- running inverter. The modulator 12, Fig 4, comprises two stacks of ferrite cores 20 threaded with a control winding 22 and series- connected windings 23, 24. <IMAGE>
GB7849088A 1977-12-27 1978-12-19 Saturable reactor for a regulated electrical power supply Withdrawn GB2011730A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86477177A 1977-12-27 1977-12-27

Publications (1)

Publication Number Publication Date
GB2011730A true GB2011730A (en) 1979-07-11

Family

ID=25344042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7849088A Withdrawn GB2011730A (en) 1977-12-27 1978-12-19 Saturable reactor for a regulated electrical power supply

Country Status (4)

Country Link
JP (1) JPS5499964A (en)
CA (1) CA1136213A (en)
DE (1) DE2856818A1 (en)
GB (1) GB2011730A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4511823A (en) * 1982-06-01 1985-04-16 Eaton William L Reduction of harmonics in gas discharge lamp ballasts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4511823A (en) * 1982-06-01 1985-04-16 Eaton William L Reduction of harmonics in gas discharge lamp ballasts

Also Published As

Publication number Publication date
DE2856818A1 (en) 1979-06-28
JPS5499964A (en) 1979-08-07
CA1136213A (en) 1982-11-23

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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)