FR2332643A1 - Process for switching of load in and out of circuit - involves application of control voltages to thyristor - Google Patents

Process for switching of load in and out of circuit - involves application of control voltages to thyristor

Info

Publication number
FR2332643A1
FR2332643A1 FR7505862A FR7505862A FR2332643A1 FR 2332643 A1 FR2332643 A1 FR 2332643A1 FR 7505862 A FR7505862 A FR 7505862A FR 7505862 A FR7505862 A FR 7505862A FR 2332643 A1 FR2332643 A1 FR 2332643A1
Authority
FR
France
Prior art keywords
thyristor
load
switching
circuit
control voltages
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
FR7505862A
Other languages
French (fr)
Other versions
FR2332643B1 (en
Inventor
Richard John Parmee
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.)
Peerless Res & Dev
Original Assignee
Peerless Res & Dev
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 Peerless Res & Dev filed Critical Peerless Res & Dev
Publication of FR2332643A1 publication Critical patent/FR2332643A1/en
Application granted granted Critical
Publication of FR2332643B1 publication Critical patent/FR2332643B1/fr
Granted 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • 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
    • H02M7/519—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 in a push-pull configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)
  • Electronic Switches (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

A thyristor (X1a) or similar semiconductor is connected in series with a load circuit. The thyristor is switched on by application of a voltage of the correct polarity and with an operating signal applied to the trigger. The thyristor is subsequently switched off by reducing the current below the maintaining value. The switching pulse has a time duration longer than the switch off time of the thyristor. A conducting path (B1a) separated from the load presents an impedance which allows the rate of voltage rise between anode and cathode of the thyristor to approach but not exceed the device maximum.
FR7505862A 1974-02-26 1975-02-25 Process for switching of load in and out of circuit - involves application of control voltages to thyristor Granted FR2332643A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB854874 1974-02-26

Publications (2)

Publication Number Publication Date
FR2332643A1 true FR2332643A1 (en) 1977-06-17
FR2332643B1 FR2332643B1 (en) 1979-01-05

Family

ID=9854581

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7505862A Granted FR2332643A1 (en) 1974-02-26 1975-02-25 Process for switching of load in and out of circuit - involves application of control voltages to thyristor

Country Status (10)

Country Link
JP (1) JPS50141256A (en)
BE (1) BE825989A (en)
BR (1) BR7501114A (en)
DE (1) DE2507521A1 (en)
DK (1) DK71475A (en)
ES (2) ES435101A1 (en)
FR (1) FR2332643A1 (en)
NL (1) NL7502298A (en)
SE (1) SE7502122L (en)
ZA (1) ZA751202B (en)

Also Published As

Publication number Publication date
JPS50141256A (en) 1975-11-13
DK71475A (en) 1975-10-27
ES440017A1 (en) 1977-03-16
FR2332643B1 (en) 1979-01-05
BR7501114A (en) 1975-12-02
SE7502122L (en) 1975-08-27
ZA751202B (en) 1976-09-29
DE2507521A1 (en) 1975-09-04
NL7502298A (en) 1975-08-28
ES435101A1 (en) 1976-12-16
BE825989A (en) 1975-06-16

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Legal Events

Date Code Title Description
ST Notification of lapse