JPS5781624A - Current control device - Google Patents

Current control device

Info

Publication number
JPS5781624A
JPS5781624A JP15660880A JP15660880A JPS5781624A JP S5781624 A JPS5781624 A JP S5781624A JP 15660880 A JP15660880 A JP 15660880A JP 15660880 A JP15660880 A JP 15660880A JP S5781624 A JPS5781624 A JP S5781624A
Authority
JP
Japan
Prior art keywords
current
load
circuit
detecting circuit
power
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.)
Pending
Application number
JP15660880A
Other languages
Japanese (ja)
Inventor
Susumu Maeda
Kazuo Tokui
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP15660880A priority Critical patent/JPS5781624A/en
Publication of JPS5781624A publication Critical patent/JPS5781624A/en
Pending 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
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/145—Conversion of ac power input into dc 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
    • H02M7/155—Conversion of ac power input into dc 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
    • H02M7/1555—Conversion of ac power input into dc 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 control circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

PURPOSE:To keep a load current constant independently of fluctuation of the power source voltage and the load, by giving a control signal corresponding to a peak value of the AC current in the current control device which controls a thyristor in accordance with an AC input current. CONSTITUTION:The AC power from a three-phase AC power source 1 is converted to a DC power by a rectifying circuit 2 consisting of thyristors 2a-2c, diodes 2d-2f, and a flywheel diode 2g and is supplied to a load 3. A current in the AD side, namely, a load current is detected by a current detector 4 and a current detector 5. The current detecting circuit 5 consists of a load circuit, which includes, for example, a diode of three-phase bridge connection, and a peak detecting circuit which outputs a peak value of the voltage generated in the load circuit. When the output of the current detecting circuit 5 is fluctuated, a control circuit 6 outputs a control signal, which changes conduction angles of thyristors 2a-2c, to keep the load current constant.
JP15660880A 1980-11-07 1980-11-07 Current control device Pending JPS5781624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15660880A JPS5781624A (en) 1980-11-07 1980-11-07 Current control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15660880A JPS5781624A (en) 1980-11-07 1980-11-07 Current control device

Publications (1)

Publication Number Publication Date
JPS5781624A true JPS5781624A (en) 1982-05-21

Family

ID=15631451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15660880A Pending JPS5781624A (en) 1980-11-07 1980-11-07 Current control device

Country Status (1)

Country Link
JP (1) JPS5781624A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725941A (en) * 1985-12-16 1988-02-16 Kabushiki Kaisha Toshiba High-voltage/large-current generator apparatus and method for generating high-voltage/large-current

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725941A (en) * 1985-12-16 1988-02-16 Kabushiki Kaisha Toshiba High-voltage/large-current generator apparatus and method for generating high-voltage/large-current

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