JPS54108216A - Thyristor chopper circuit - Google Patents

Thyristor chopper circuit

Info

Publication number
JPS54108216A
JPS54108216A JP1414778A JP1414778A JPS54108216A JP S54108216 A JPS54108216 A JP S54108216A JP 1414778 A JP1414778 A JP 1414778A JP 1414778 A JP1414778 A JP 1414778A JP S54108216 A JPS54108216 A JP S54108216A
Authority
JP
Japan
Prior art keywords
chopper circuit
current
dummy
thyristor
diode
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
JP1414778A
Other languages
Japanese (ja)
Other versions
JPS602869B2 (en
Inventor
Hiroyuki Nomura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1414778A priority Critical patent/JPS602869B2/en
Publication of JPS54108216A publication Critical patent/JPS54108216A/en
Publication of JPS602869B2 publication Critical patent/JPS602869B2/en
Expired legal-status Critical Current

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Abstract

PURPOSE: To make a starting operable at no load, by providing a diode, for reverse current cut-out, between a fly-wheel diode, connected to the output side, diode and the chopper circuit, and providing a dummy-load resistor between said and the chopper circuit.
CONSTITUTION: At starting operation, with a main thyristor in a thyristor chopper circuit 2 turned ON, because of a resistance value of the dummy-load resistor 10 being enough for flowing a holding current of the main thyristor, the thyristor becomes perfectly ON. If applied a voltage to a condenser 6 being charged, a discharge begins to operate, but the current, flowing in the dummy-load resistor 10, is not decreased by the blocking operation of a diode 11, thus with the holding current ensured in the main thyristor. In case of an operation with more than two circuits of the chopper circuit connected in parallel, the current from the condenser 6 is blocked off by coupling diodes 13-1, 13-2, with a current flowing in the dummy- load resistor 10 through diodes 14-1, 14-2, and the holding current of the main thyristor will be ensured.
COPYRIGHT: (C)1979,JPO&Japio
JP1414778A 1978-02-13 1978-02-13 Thyristor power supply circuit Expired JPS602869B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1414778A JPS602869B2 (en) 1978-02-13 1978-02-13 Thyristor power supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1414778A JPS602869B2 (en) 1978-02-13 1978-02-13 Thyristor power supply circuit

Publications (2)

Publication Number Publication Date
JPS54108216A true JPS54108216A (en) 1979-08-24
JPS602869B2 JPS602869B2 (en) 1985-01-24

Family

ID=11853029

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1414778A Expired JPS602869B2 (en) 1978-02-13 1978-02-13 Thyristor power supply circuit

Country Status (1)

Country Link
JP (1) JPS602869B2 (en)

Also Published As

Publication number Publication date
JPS602869B2 (en) 1985-01-24

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