STADIO FINALE DI POTENZA INTEGRATO MONOLITICAMENTE

A monolithically integrated power output stage detects the load current through an output-stage transistor. Switch logic coupled to an output transistor is for switching the output transistor when a predetermined load-current threshold is reached. In this connection, the output transistor is integra...

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Bibliographic Details
Main Author UEBELE MANFRED
Format Patent
LanguageItalian
Published 17.06.1994
Subjects
BASIC ELECTRIC ELEMENTS
BASIC ELECTRONIC CIRCUITRY
BLASTING
COMBUSTION ENGINES
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES
LIGHTING
MECHANICAL ENGINEERING
PULSE TECHNIQUE
SEMICONDUCTOR DEVICES
TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
WEAPONS
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Summary:A monolithically integrated power output stage detects the load current through an output-stage transistor. Switch logic coupled to an output transistor is for switching the output transistor when a predetermined load-current threshold is reached. In this connection, the output transistor is integrated in a separate insulated pi -well which contains, in addition, a diode which couples the pi -region of the pi -well to a ground terminal. This limits the maximum potential to a forward voltage of more than 0 volts and thereby prevents malfunction in normal operation since it leads shift currents in low-resistance to ground by capacitive coupling upon an increase in the voltage of the collector of the output-stage transistor.
Bibliography:Application Number: IT1994MI01265