Three state bus driver with protection circuitry

Details Three state bus driver with protection circuitry Three state bus driver with protection circuitry

1977-10-11

1979-12-11

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361 86, 361 89, 307200B, H02H 720

Patent

active

041786203

ABSTRACT:
A protective circuit arrangement for three state bus drivers, incorporating insulated gate field effect transistors, affords protection against short circuiting of the output bus. The protective circuit senses the short circuit condition at the output bus of two push-pull output transistors and feeds back a signal to the input circuit of the ON transistor which reduces the input drive to that transistor and limits the output current through that transistor to a safe value.

REFERENCES:
patent: 3749936 (1973-07-01), Bell
patent: 3938008 (1976-02-01), Knepper et al.
patent: 4037114 (1977-07-01), Stewart et al.

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