GB1048045A - Improvements relating to pulse width modulated inverters - Google Patents

Improvements relating to pulse width modulated inverters

Info

Publication number
GB1048045A
GB1048045A GB3392462A GB3392462A GB1048045A GB 1048045 A GB1048045 A GB 1048045A GB 3392462 A GB3392462 A GB 3392462A GB 3392462 A GB3392462 A GB 3392462A GB 1048045 A GB1048045 A GB 1048045A
Authority
GB
United Kingdom
Prior art keywords
series
controlled rectifier
controlled
diode
pulse width
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
GB3392462A
Inventor
Walter Kenneth O'neil
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB3392462A priority Critical patent/GB1048045A/en
Publication of GB1048045A publication Critical patent/GB1048045A/en
Expired 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/505—Conversion of dc power input into ac power output without possibility of reversal 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
    • H02M7/515—Conversion of dc power input into ac power output without possibility of reversal 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
    • H02M7/5157—Conversion of dc power input into ac power output without possibility of reversal 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 wherein the extinguishing of every commutation element will be obtained by means of a commutation inductance, by starting another main commutation element in series with the first

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Generation Of Surge Voltage And Current (AREA)

Abstract

1,048,045. Inverting. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 22, 1963 [Sept. 4, 1962], No. 33924/62. Heading H2F. The Specification relates to pulse width modulated inverters having at least one pair of controlled rectifiers, arranged to conduct load current alternately, and reversely connected diodes across the controlled rectifiers. According to the invention a pair of inductively coupled windings are connected, the one in series with the controlled rectifier and the other in series with the corresponding diode. In the Figure, which shows a pulse width modulated inverter with commutating capacitors forming resonant circuits with the inductors, the windings T1PA and T1SA, in series with controlled rectifier SCR1 and diode D11 respectively, are also inductively coupled to windings T1PB and T1SB which are in series with the controlled rectifier SCR2, which conducts alternately with SCR1, and its corresponding reverse diode respectively. The arrangement is such that reverse current flowing in a diode and its associated winding induces in the winding associated with the controlled rectifier a voltage which aids turn off of the controlled rectifier. The load 5 may be a D.C. load, and the effective direct current through it is controlled by varying the mark-space ratio of the inverter.
GB3392462A 1962-09-04 1962-09-04 Improvements relating to pulse width modulated inverters Expired GB1048045A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3392462A GB1048045A (en) 1962-09-04 1962-09-04 Improvements relating to pulse width modulated inverters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3392462A GB1048045A (en) 1962-09-04 1962-09-04 Improvements relating to pulse width modulated inverters

Publications (1)

Publication Number Publication Date
GB1048045A true GB1048045A (en) 1966-11-09

Family

ID=10359179

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3392462A Expired GB1048045A (en) 1962-09-04 1962-09-04 Improvements relating to pulse width modulated inverters

Country Status (1)

Country Link
GB (1) GB1048045A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1957103A1 (en) * 1968-11-14 1970-06-11 Thomson Csf Alternator with amplitude modulation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1957103A1 (en) * 1968-11-14 1970-06-11 Thomson Csf Alternator with amplitude modulation

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