JPS5457627A - Frequency converter - Google Patents

Frequency converter

Info

Publication number
JPS5457627A
JPS5457627A JP12552577A JP12552577A JPS5457627A JP S5457627 A JPS5457627 A JP S5457627A JP 12552577 A JP12552577 A JP 12552577A JP 12552577 A JP12552577 A JP 12552577A JP S5457627 A JPS5457627 A JP S5457627A
Authority
JP
Japan
Prior art keywords
circuit
thyristor
gate
pulse
signal
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
JP12552577A
Other languages
Japanese (ja)
Other versions
JPS5850518B2 (en
Inventor
Yuichi Yoshida
Mitsusachi Kiuchi
Shigeo Hamaoka
Hitoshi Wakita
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP12552577A priority Critical patent/JPS5850518B2/en
Publication of JPS5457627A publication Critical patent/JPS5457627A/en
Publication of JPS5850518B2 publication Critical patent/JPS5850518B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To reduce gate loss of thyristor, by supplying, to the thyristor, a gate signal of suitable pulse width in accrdance with a low frequency AC voltage polarity.
CONSTITUTION: A frequency converter circuit, that comprises a thyristor 41, 42 and series resonance circuit 2, 3, and a control circuit are provided. The control circuit comprises gate drive circuits 14a, 14bm for conducting the thyristor, a circuit 8, for forming a first pulse start timing, a circuit 11, for a first pulse stop timing, and a multiplexor circuit 13, for outputting a signal, with an output signal of each pulse former circuit 10, 12 inputted, to the gate drive circuit in accordance with a low frequency palenity. In this way, a gate pulse signal of suitable width in accordance with a polarity of low frequency AC power source can be supplied to the thyristor, and a power consumption can be also olightened in the power trnsformer simultaneously with a gate loss of the thyristor reduced
COPYRIGHT: (C)1979,JPO&Japio
JP12552577A 1977-10-18 1977-10-18 frequency converter Expired JPS5850518B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12552577A JPS5850518B2 (en) 1977-10-18 1977-10-18 frequency converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12552577A JPS5850518B2 (en) 1977-10-18 1977-10-18 frequency converter

Publications (2)

Publication Number Publication Date
JPS5457627A true JPS5457627A (en) 1979-05-09
JPS5850518B2 JPS5850518B2 (en) 1983-11-10

Family

ID=14912318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12552577A Expired JPS5850518B2 (en) 1977-10-18 1977-10-18 frequency converter

Country Status (1)

Country Link
JP (1) JPS5850518B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03130618U (en) * 1990-04-11 1991-12-27

Also Published As

Publication number Publication date
JPS5850518B2 (en) 1983-11-10

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