Protection circuit for switching transistors serially connected

Details Protection circuit for switching transistors serially connected Protection circuit for switching transistors serially connected

1980-06-18

1982-12-21

Eisenzopf, Reinhard J.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361 98, 361101, H02H 904

Patent

active

043652816

ABSTRACT:
A protection circuit for a switching amplifier having a plurality of serially stacked switching transistors includes a voltage breakdown device and a current responsive device for sensing the voltage developed between the emitter and collector electrodes of each conducting switching transistor. The base drive for any transistor is removed in response to Vce of a switching transistor exceeding a predetermined value.

REFERENCES:
patent: 3202904 (1965-08-01), Madland
patent: 3571608 (1971-03-01), Hurd
patent: 3582713 (1971-06-01), Till
patent: 3900800 (1975-08-01), Maltz
patent: 4158866 (1979-06-01), Baker

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