Modulator switching system having at least one semiconductor swi

Details Modulator switching system having at least one semiconductor swi Modulator switching system having at least one semiconductor swi

1991-10-31

1994-02-08

Beha, Jr., William H.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

307270, 123490, 361103, H02P 900

Patent

active

052853454

ABSTRACT:
A modular switching system includes a transistor operative in a switching mode for applying current to a load. Adaptation of the system to accommodate different values of load is attained by coupling an input drive ,signal to a base terminal of the transistor via a variable gain amplifier wherein the gain is established by a load-adaption signal to meet the requisite base current drive signal for the load. Plural emitter terminals of the transistor connected to separate branches of a monitoring circuit, each branch having its own threshold detector, for monitoring of minimum and maximum values of load current.

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