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FR2379944A1 - Electronic switching circuit for periodic AC or DC - operates using differential amplifier and includes thyristor or triac - Google Patents

Electronic switching circuit for periodic AC or DC - operates using differential amplifier and includes thyristor or triac

Info

Publication number
FR2379944A1
FR2379944A1 FR7702841A FR7702841A FR2379944A1 FR 2379944 A1 FR2379944 A1 FR 2379944A1 FR 7702841 A FR7702841 A FR 7702841A FR 7702841 A FR7702841 A FR 7702841A FR 2379944 A1 FR2379944 A1 FR 2379944A1
Authority
FR
France
Prior art keywords
triac
switching circuit
periodic
amplifier
differential amplifier
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
FR7702841A
Other languages
French (fr)
Other versions
FR2379944B3 (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.)
INNOVATION TECH STE CIVILE
Original Assignee
INNOVATION TECH STE CIVILE
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 INNOVATION TECH STE CIVILE filed Critical INNOVATION TECH STE CIVILE
Priority to FR7702841A priority Critical patent/FR2379944A1/en
Publication of FR2379944A1 publication Critical patent/FR2379944A1/en
Application granted granted Critical
Publication of FR2379944B3 publication Critical patent/FR2379944B3/fr
Granted 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
    • H03K17/13—Modifications for switching at zero crossing
    • H03K17/136—Modifications for switching at zero crossing in thyristor switches
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
    • 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
    • H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC
    • H02M5/04—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters
    • H02M5/22—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/25—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC 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
    • H02M5/257—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC 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
    • H02M5/2573—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC 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 control circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)
  • Electronic Switches (AREA)

Abstract

An electronic switching circuit is used for periodic currents esp. those used in regulation or repetitive and periodic control usually requiring anti-parasitic circuits. The switching circuit is based on the use of a differential amplifier to provide the trigger signals for the interrupter proper. The circuit may use a thyristor, the alternating polarity across which is fed to the inverting input of the amplifier via a potential dividing bridge or it may be a triac in which case the two alternating polarities are fed respectively to the two amplifier inputs via a diode bridge. The amplifier controls a transistor relay in the gate circuit or the triac.
FR7702841A 1977-02-02 1977-02-02 Electronic switching circuit for periodic AC or DC - operates using differential amplifier and includes thyristor or triac Granted FR2379944A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7702841A FR2379944A1 (en) 1977-02-02 1977-02-02 Electronic switching circuit for periodic AC or DC - operates using differential amplifier and includes thyristor or triac

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7702841A FR2379944A1 (en) 1977-02-02 1977-02-02 Electronic switching circuit for periodic AC or DC - operates using differential amplifier and includes thyristor or triac

Publications (2)

Publication Number Publication Date
FR2379944A1 true FR2379944A1 (en) 1978-09-01
FR2379944B3 FR2379944B3 (en) 1979-10-05

Family

ID=9186182

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7702841A Granted FR2379944A1 (en) 1977-02-02 1977-02-02 Electronic switching circuit for periodic AC or DC - operates using differential amplifier and includes thyristor or triac

Country Status (1)

Country Link
FR (1) FR2379944A1 (en)

Also Published As

Publication number Publication date
FR2379944B3 (en) 1979-10-05

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Legal Events

Date Code Title Description
ST Notification of lapse