CONTROL CIRCUIT WITH IMPEDANCE FOR AUXILIARY SELF SWITCHING ON FOR THYRISTOR OR TRIAC TYPE HIGH SENSITIVITY SEMICONDUCTOR DEVICE

CONTROL CIRCUIT WITH IMPEDANCE FOR AUXILIARY SELF SWITCHING ON FOR THYRISTOR OR TRIAC TYPE HIGH SENSITIVITY SEMICONDUCTOR DEVICE

Control circuit for a semiconductor device SC which can be automatically switched on and switched off, or power controlled, by establishing a short-circuit between two regions of the semiconductor, characterised in that it comprises a MOS field-effect transistor M connected to the two poles GaK of t...

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Bibliographische Detailangaben
Hauptverfasser: JIYATSUKU EMIIRU TEIIRU, JIYORUJIYU SUUKU
Format: Patent
Sprache:eng
Schlagworte:
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
BASIC ELECTRONIC CIRCUITRY
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
PULSE TECHNIQUE
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Beschreibung
Zusammenfassung:Control circuit for a semiconductor device SC which can be automatically switched on and switched off, or power controlled, by establishing a short-circuit between two regions of the semiconductor, characterised in that it comprises a MOS field-effect transistor M connected to the two poles GaK of the semiconductor device to be controlled and whose gate G is auto-biased, from the positive pole A, by a resistor RG of appropriate value and by a phototransistor Ph-Tr connected to the said MOS transistor so as to short-circuit the said bias when it is activated by a light signal.