GB1264364A - - Google Patents

Info

Publication number
GB1264364A
GB1264364A GB331869A GB1264364DA GB1264364A GB 1264364 A GB1264364 A GB 1264364A GB 331869 A GB331869 A GB 331869A GB 1264364D A GB1264364D A GB 1264364DA GB 1264364 A GB1264364 A GB 1264364A
Authority
GB
United Kingdom
Prior art keywords
load
frequency
supply
jan
capacitor
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.)
Expired
Application number
GB331869A
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
Publication of GB1264364A publication Critical patent/GB1264364A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03K17/72—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 having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • 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
    • 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
    • H02M3/125—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 thyratron or thyristor type requiring extinguishing means
    • H02M3/135—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)
  • Rectifiers (AREA)

Abstract

1,264,364. Control of D.C. motors; converting. TECHNION RESEARCH & DEVELOPMENT FOUNDATION Ltd. 21 Jan., 1970 [21 Jan., 1969], No. 3318/69. Headings H2F and H2J. [Also in Division G3] The voltage and current through a load 3 are regulated by a circuit 1 interposed between the load and a D.C. source 2 and comprising switches 4 ... 7 which are simultaneously opened and closed in pairs 4, 7 and 5, 6 so that an alternating voltage is established across a capacitor 8, the frequency of which may be varied to vary the reactance of the capacitor and hence the supply to the load. Members 4-7 may be mechanical switches or power transistors or thyristors. An embodiment using the latter is described, Fig. 2 (not shown), the triggering frequency being varied by :a conventional firing circuit. The D.C. supply 2 may be derived from a three-phase A.C. supply through a transformer and rectifier, Figs. 4 and 5 (not shown). The load 3 may be an electric motor, furnace or lighting installation, an operating parameter of which may be controlled by varying the frequency of switching. Stabilization of the parameter may be obtained by the provision of a feedback circuit controlling the frequency.
GB331869A 1969-01-21 1969-01-21 Expired GB1264364A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB331869 1969-01-21

Publications (1)

Publication Number Publication Date
GB1264364A true GB1264364A (en) 1972-02-23

Family

ID=9756062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB331869A Expired GB1264364A (en) 1969-01-21 1969-01-21

Country Status (3)

Country Link
DE (1) DE2002207A1 (en)
GB (1) GB1264364A (en)
IL (1) IL33685A (en)

Also Published As

Publication number Publication date
IL33685A (en) 1973-03-30
IL33685A0 (en) 1970-03-22
DE2002207A1 (en) 1970-08-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees