JPS5583338A - Control circuit of semiconductor element - Google Patents
Control circuit of semiconductor elementInfo
- 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
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100334370B1 (en) * | 2000-02-10 | 2002-04-25 | 이명규 | Many folds and its manufacturing method |
-
1978
- 1978-12-20 JP JP15642578A patent/JPS5583338A/en active Pending
Cited By (1)
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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