JPS5492166A - Semiconductor switch unit - Google Patents

Semiconductor switch unit

Info

Publication number
JPS5492166A
JPS5492166A JP16026677A JP16026677A JPS5492166A JP S5492166 A JPS5492166 A JP S5492166A JP 16026677 A JP16026677 A JP 16026677A JP 16026677 A JP16026677 A JP 16026677A JP S5492166 A JPS5492166 A JP S5492166A
Authority
JP
Japan
Prior art keywords
current
trqm
supplies
thyristor
winding
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
JP16026677A
Other languages
Japanese (ja)
Inventor
Ryohei Uchida
Munehiko Mimura
Tatsuo Yamazaki
Masahiko Akamatsu
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 JP16026677A priority Critical patent/JPS5492166A/en
Publication of JPS5492166A publication Critical patent/JPS5492166A/en
Pending legal-status Critical Current

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  • Power Conversion In General (AREA)

Abstract

PURPOSE: To perform stable commutation by providing a transformer which supplies a base current answering to the collector current of a commutating transistor and that which supplies a reverse bias to a main thyrister.
CONSTITUTION: When a current is flowing to load Z with thyristor CR ignited, turning ON auxiliary transistor TrQC applies the voltage of control power supply Vc to the series circuit of windings N12 and N22 of transformers T1 and T2, the induced voltage of winding N21 of T2 supplies base current (iB) of commutating TrQM to turn On TrQM, and the sum of induced voltages of windings N11 and N21 of T1 and T2 supplies a reverse voltage to thyristor CR. As a result thyristor current (iCR) is commutated as collector current (ic) toward TrQM and afterward, TrQM commutates all current (iCR) while maintaining itself in the saturation state. In this case, stable commutation can be performed by automatically decreasing or increasing current (iB) via induced current (i2) of winding N12 corresponding to current (ic) and by decreasing a control current with a winding ratio between transformers T1 and T2 made large.
COPYRIGHT: (C)1979,JPO&Japio
JP16026677A 1977-12-29 1977-12-29 Semiconductor switch unit Pending JPS5492166A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16026677A JPS5492166A (en) 1977-12-29 1977-12-29 Semiconductor switch unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16026677A JPS5492166A (en) 1977-12-29 1977-12-29 Semiconductor switch unit

Publications (1)

Publication Number Publication Date
JPS5492166A true JPS5492166A (en) 1979-07-21

Family

ID=15711275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16026677A Pending JPS5492166A (en) 1977-12-29 1977-12-29 Semiconductor switch unit

Country Status (1)

Country Link
JP (1) JPS5492166A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60121969A (en) * 1983-11-14 1985-06-29 タンデム　コンピユーターズ　インコーポレーテツド Constant current drive unit for switching power supply source

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60121969A (en) * 1983-11-14 1985-06-29 タンデム　コンピユーターズ　インコーポレーテツド Constant current drive unit for switching power supply source
JPH06106023B2 (en) * 1983-11-14 1994-12-21 タンデム コンピユーターズ インコーポレーテツド Switching device for switching power supply

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