Electric power conversion systems – Current conversion – Including automatic or integral protection means
Patent
1988-12-08
1989-09-19
Wong, Peter S.
Electric power conversion systems
Current conversion
Including automatic or integral protection means
363 57, 363 85, 363 96, 307633, H02M 7155
Patent
active
048687316
ABSTRACT:
The circuit contains a separate firing and extinguishing circuit, each having a respective capacitive charge store for generating the firing and the extinguishing current pulses for a GTO thyristor. A fast switching element which can be directly activated via a push-pull stage is provided which, when activated, discharges a respective charge store via the gate-cathode path of the GTO thyristor. As a result, the GTO thyristor can be operated at a high cycle frequency of up to at least 12,000 Hz and can be used in audio frequency transmitters for ripple control systems.
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A Title Page, Table of Contents and Chapter Five of the Book, "Principles of Inverter Circuits" by B. D. Bedford & R. G. Hoft.
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Wong Peter S.
Zellweger Uster AG
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