GB2006553A - A Pulse-Width Modulated Inverter - Google Patents

A Pulse-Width Modulated Inverter

Info

Publication number
GB2006553A
GB2006553A GB7838857A GB7838857A GB2006553A GB 2006553 A GB2006553 A GB 2006553A GB 7838857 A GB7838857 A GB 7838857A GB 7838857 A GB7838857 A GB 7838857A GB 2006553 A GB2006553 A GB 2006553A
Authority
GB
United Kingdom
Prior art keywords
thyristor
inverter
turn
frequency
output
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
GB7838857A
Other versions
GB2006553B (en
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.)
SAFT Societe des Accumulateurs Fixes et de Traction SA
Original Assignee
SAFT Societe des Accumulateurs Fixes et de Traction SA
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 SAFT Societe des Accumulateurs Fixes et de Traction SA filed Critical SAFT Societe des Accumulateurs Fixes et de Traction SA
Publication of GB2006553A publication Critical patent/GB2006553A/en
Application granted granted Critical
Publication of GB2006553B publication Critical patent/GB2006553B/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
    • H02M7/525—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 with automatic control of output waveform or frequency
    • H02M7/527—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 with automatic control of output waveform or frequency by pulse width modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

In a pulse-width modulated thyristor push-pull inverter having a turn-off inductance L, a turn-off capacitance C across a centre-tapped main transformer TR, and diodes D1, D2, reversely connected across the thyristors Th1, Th2, each thyristor is turned on for several chopping frequency pulses during each half cycle of the a.c. output of the inverter. The other thyristor is triggered to turn off the first. Roles are exchanged each half-cycle. During the off portions of the pulses the primary current is maintained by the transformer via the diode which by-passes the other thyristor and incidentally charging the battery forming the d.c. source for the inverter. The widths of the conductive pulses are determined by electronic control means (2, 4, 6, 8, 10, 16, 18) to regulate the output and the chopping frequency is synchronized with the AC output frequency and from 5 to 10 times this AC frequency for normal mains replacement applications. <IMAGE>
GB7838857A 1977-10-11 1978-10-02 Pulse-width modulation inverter Expired GB2006553B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7730559A FR2406336A1 (en) 1977-10-11 1977-10-11 AUTONOMOUS INVERTER WITH PULSE WIDTH MODULATION

Publications (2)

Publication Number Publication Date
GB2006553A true GB2006553A (en) 1979-05-02
GB2006553B GB2006553B (en) 1982-04-15

Family

ID=9196361

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7838857A Expired GB2006553B (en) 1977-10-11 1978-10-02 Pulse-width modulation inverter

Country Status (6)

Country Link
CA (1) CA1108693A (en)
DE (1) DE2843350A1 (en)
ES (1) ES474128A1 (en)
FR (1) FR2406336A1 (en)
GB (1) GB2006553B (en)
ZA (1) ZA785717B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2261534A (en) * 1991-11-14 1993-05-19 Perkin Elmer Corp Thermionic detector ion source heating arrangement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE622965A (en) * 1961-09-28

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2261534A (en) * 1991-11-14 1993-05-19 Perkin Elmer Corp Thermionic detector ion source heating arrangement
GB2261534B (en) * 1991-11-14 1995-12-06 Perkin Elmer Corp Heating a detector source
US5475202A (en) * 1991-11-14 1995-12-12 The Perkin-Elmer Corporation Method and apparatus for heating a thermionic detector source

Also Published As

Publication number Publication date
FR2406336A1 (en) 1979-05-11
ES474128A1 (en) 1979-05-01
DE2843350A1 (en) 1979-04-12
FR2406336B1 (en) 1980-08-22
ZA785717B (en) 1979-09-26
CA1108693A (en) 1981-09-08
GB2006553B (en) 1982-04-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee