JPS57150011A - Constant voltage controller - Google Patents

Constant voltage controller

Info

Publication number
JPS57150011A
JPS57150011A JP3535781A JP3535781A JPS57150011A JP S57150011 A JPS57150011 A JP S57150011A JP 3535781 A JP3535781 A JP 3535781A JP 3535781 A JP3535781 A JP 3535781A JP S57150011 A JPS57150011 A JP S57150011A
Authority
JP
Japan
Prior art keywords
voltage
thyristor
output
amplifier
power supply
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
JP3535781A
Other languages
Japanese (ja)
Inventor
Yoshimitsu Onoda
Masachika Yamazaki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3535781A priority Critical patent/JPS57150011A/en
Publication of JPS57150011A publication Critical patent/JPS57150011A/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 control the output voltage of a thyristor circuit at a constant level without causing any transient state and regardless of a sudden change of power supply voltage, by controlling the gate of a thyristor converter with the output of a constant voltage magnetic amplifier. CONSTITUTION:With the combination of a thyristor circuit that rectifies AC current and a constant voltage magnetic amplifier 4 that controls the gate of the thyristor, the wave crest of the voltage in a main circuit decreases with the reduction of power suply voltage Ea. On the other hand, the firing angle thetam increases according to the decrease of Ea by the function of the constant voltage for the output of the amplifier 4 which uses the voltage Ea as a power supply. As a result, the flowing angle thetaT of the thyristor also increases to keep the mean value of the output Ed of the thyristor circuit at a constant level regardless of the reduction of the Ea. Furthermore, no transient state occurs at the output side of the thyristor circuit which is controlled by the amplifier 4 although the power supply voltage has a sudden change.
JP3535781A 1981-03-13 1981-03-13 Constant voltage controller Pending JPS57150011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3535781A JPS57150011A (en) 1981-03-13 1981-03-13 Constant voltage controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3535781A JPS57150011A (en) 1981-03-13 1981-03-13 Constant voltage controller

Publications (1)

Publication Number Publication Date
JPS57150011A true JPS57150011A (en) 1982-09-16

Family

ID=12439620

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3535781A Pending JPS57150011A (en) 1981-03-13 1981-03-13 Constant voltage controller

Country Status (1)

Country Link
JP (1) JPS57150011A (en)

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