JPS5583338A - Control circuit of semiconductor element - Google Patents

Control circuit of semiconductor element

Info

Publication number
JPS5583338A
JPS5583338A JP15642578A JP15642578A JPS5583338A JP S5583338 A JPS5583338 A JP S5583338A JP 15642578 A JP15642578 A JP 15642578A JP 15642578 A JP15642578 A JP 15642578A JP S5583338 A JPS5583338 A JP S5583338A
Authority
JP
Japan
Prior art keywords
capacitor
switch
charged
gate
scr8
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
JP15642578A
Other languages
Japanese (ja)
Inventor
Hiroshi Fukui
Arata Kimura
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 JP15642578A priority Critical patent/JPS5583338A/en
Publication of JPS5583338A publication Critical patent/JPS5583338A/en
Pending 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

  • Thyristor Switches And Gates (AREA)

Abstract

PURPOSE:To make gate control possible covering a broad frequency range by using a turn-off capacitor charged by an ON gate currnect and an ON-current accelerating capacitor having already be charged with the opposite polarity. CONSTITUTION:Capacitor 4 is set to a sufficiently-large value and previously charged to a value nearly equal to control power supply 1. Capacitor 29 of small capacity is selected and charged by a charging current supplied from capacitor 4. With switch 2 ON in this state, great part of an ON gate current is supplied to the control electrode of SCR8 by way of resistance 6, switch 2, and capacitors 29 and 4. After capacitor 29 is discharged, capacitor 4 is charged to the value of control power supply 1. Next, switch 2 is turned OFF and switch 3 is turned ON in sequence. With switch 2 OFF, capacitor 29 is charged again. With switch 3 ON, an OFF gate current flows from the cathode of SCR8 to its gate to turn SCR8 OFF.
JP15642578A 1978-12-20 1978-12-20 Control circuit of semiconductor element Pending JPS5583338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15642578A JPS5583338A (en) 1978-12-20 1978-12-20 Control circuit of semiconductor element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15642578A JPS5583338A (en) 1978-12-20 1978-12-20 Control circuit of semiconductor element

Publications (1)

Publication Number Publication Date
JPS5583338A true JPS5583338A (en) 1980-06-23

Family

ID=15627459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15642578A Pending JPS5583338A (en) 1978-12-20 1978-12-20 Control circuit of semiconductor element

Country Status (1)

Country Link
JP (1) JPS5583338A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100334370B1 (en) * 2000-02-10 2002-04-25 이명규 Many folds and its manufacturing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100334370B1 (en) * 2000-02-10 2002-04-25 이명규 Many folds and its manufacturing method

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