Peak Voltage Protection Circuit and Method

Peak Voltage Protection Circuit and Method

A peak voltage protection circuit for protecting an associated High Voltage NPN transistor (T 3 ) against breakdown, the protection circuit comprising a Low Voltage NPN element (T 15 ) for sensing a sensor voltage related to a base-collector voltage of the associated High Voltage NPN transistor (T 3...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PRIKHODKO DMITRY PAVIOVICH, VAN BEZOOIJEN ADRIANUS, HEERES ROB MATHIJS, BALM BART, KOSTER RONALD
Format: Patent
Sprache:eng
Schlagworte:
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
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Beschreibung
Zusammenfassung:A peak voltage protection circuit for protecting an associated High Voltage NPN transistor (T 3 ) against breakdown, the protection circuit comprising a Low Voltage NPN element (T 15 ) for sensing a sensor voltage related to a base-collector voltage of the associated High Voltage NPN transistor (T 3 ). The circuit further comprises an activation circuit for limiting the base-collector voltage of the associated High Voltage NPN transistor (T 3 ) upon triggering. The Low Voltage NPN element ( 15 ) is coupled to the activation circuit for triggering it upon the sensor voltage exceeding a breakdown voltage of the Low Voltage NPN transistor (T 15 ).