Circuitry for surveillance of switching state of a power transis

Details Circuitry for surveillance of switching state of a power transis Circuitry for surveillance of switching state of a power transis

1990-08-21

1992-06-02

Teska, Kevin J.

Boots, shoes, and leggings

361 93, 361101, 36455101, G06F 1520, G06F 1546

Patent

active

051193124

ABSTRACT:
A circuit for the surveillance of the switching state of a power transistor is constructed such that both, the voltage applied to the power transistor (1) is surveyed by way of a voltage comparator (7), as well as the voltage applied to the load (3) is surveyed by way of a further voltage comparator (8). The comparator (7) in the switched-on state and the comparator (8) in the switched-off state are activated by the input signal (U.sub.IN) of the power transistor (1). The output signals of the two comparators (7, 8) are combined to a status signal (U.sub.Stat). It is possible by way of the proposed circuit to recognize both a short circuit or, respectively, a shunt circuit of the load as well as a leakage current of the power transistor (1) and thus an interruption of the load occurs.

REFERENCES:
patent: 4174496 (1079-11-01), McFall et al.
patent: 4441136 (1984-04-01), Hampshire
patent: 4525765 (1985-06-01), Brajder
patent: 4558389 (1985-12-01), Black, Jr. et al.
patent: 4626954 (1986-12-01), Damiano et al.
patent: 4628397 (1986-12-01), Gareis et al.
patent: 4641231 (1987-02-01), Walker et al.
patent: 4651252 (1987-03-01), Babinski
patent: 4661880 (1987-04-01), Futsuhara
patent: 4680664 (1987-07-01), Leuthen
patent: 4682120 (1987-07-01), Palara et al.
patent: 4945445 (1990-07-01), Schmerda et al.

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