Protective integrated circuit network, particularly for connecti

Details Protective integrated circuit network, particularly for connecti Protective integrated circuit network, particularly for connecti

1977-08-10

1979-12-11

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

330207P, 307318, 361 18, 361111, H02H 720

Patent

active

041786190

ABSTRACT:
To permit entire integration of a control circuit to switch an inductive load, and protect the integrated control circuit against inductive voltage kicks, voltage surges, and reverse polarity, a series circuit including a diode, which may be constructed as a transistor in diode connection, and a voltage limiting element, typically a Zener diode, or a Zener diode controlled transistor, or four-layer diode are connected in parallel to the main switching path of the semiconductor element which controls current flow through the inductive load, thereby eliminating the necessity of the free wheeling and anti-conductive voltage kick diode which, in combination with the inherent substrate diodes of the inductive circuit, might lead to the damage, or destruction of the IC.

REFERENCES:
patent: 3252051 (1966-05-01), Walker
patent: 3340407 (1967-09-01), Sinclair
patent: 3421025 (1969-01-01), Mitchell et al.
patent: 3577063 (1971-05-01), Hurd
patent: 3641407 (1972-02-01), Scott
patent: 3770986 (1973-11-01), Drehle
patent: 3815049 (1974-06-01), Beurrier

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