JPS57123738A - Semiconductor switch - Google Patents

Semiconductor switch

Info

Publication number
JPS57123738A
JPS57123738A JP56007925A JP792581A JPS57123738A JP S57123738 A JPS57123738 A JP S57123738A JP 56007925 A JP56007925 A JP 56007925A JP 792581 A JP792581 A JP 792581A JP S57123738 A JPS57123738 A JP S57123738A
Authority
JP
Japan
Prior art keywords
pnpn
control
turn
gate
voltage
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
JP56007925A
Other languages
Japanese (ja)
Other versions
JPH0133973B2 (en
Inventor
Mitsuo Matsuyama
Shinji Okuhara
Kuniyasu Kawarada
Toshio Hayashi
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
NTT Inc
Original Assignee
Hitachi Ltd
Nippon Telegraph and Telephone 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 Hitachi Ltd, Nippon Telegraph and Telephone Corp filed Critical Hitachi Ltd
Priority to JP56007925A priority Critical patent/JPS57123738A/en
Publication of JPS57123738A publication Critical patent/JPS57123738A/en
Publication of JPH0133973B2 publication Critical patent/JPH0133973B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/73—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for DC voltages or currents

Landscapes

  • Power Conversion In General (AREA)
  • Thyristor Switches And Gates (AREA)

Abstract

PURPOSE:To increase disconnecting-current capacity and to lower an ON voltage, by using a PNPN switch and a transistor (TR), which operates only during OFF control, in combination for a semiconductor switch circuit including the PNPN switch. CONSTITUTION:For ON control, supplying a gate driving current from a gate G turns on PNPN switches q1 and Q2, and a load current flows from an anode A to a cathode K to turn off TRs Q6 and Q7. For OFF control, flowing a current from an OFF control terminal B turns on a gate turn-off TRQ3 to turn on the TRs Q6 and Q7, and the load current of the PNPN switches Q1 and Q2 is reduced to support gate turn-off operation. Since only the PNPN switches Q1 and Q2 are in ON operation during the ON control, an ON voltage depends upon only the voltage across the PNPN switch.
JP56007925A 1981-01-23 1981-01-23 Semiconductor switch Granted JPS57123738A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56007925A JPS57123738A (en) 1981-01-23 1981-01-23 Semiconductor switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56007925A JPS57123738A (en) 1981-01-23 1981-01-23 Semiconductor switch

Publications (2)

Publication Number Publication Date
JPS57123738A true JPS57123738A (en) 1982-08-02
JPH0133973B2 JPH0133973B2 (en) 1989-07-17

Family

ID=11679095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56007925A Granted JPS57123738A (en) 1981-01-23 1981-01-23 Semiconductor switch

Country Status (1)

Country Link
JP (1) JPS57123738A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4928228A (en) * 1972-07-10 1974-03-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4928228A (en) * 1972-07-10 1974-03-13

Also Published As

Publication number Publication date
JPH0133973B2 (en) 1989-07-17

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