Apparatus for pre-defining circuit characteristics

Details Apparatus for pre-defining circuit characteristics Apparatus for pre-defining circuit characteristics

1987-10-28

1989-01-10

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307359, 307364, H03K 524, H03K 301, G05F 146

Patent

active

047975695

ABSTRACT:
An integrateable circuit is disclosed which allows selection between pre-defined and user-defined characteristics. The circuit utilizes a single input terminal for both selection and definition by a user. In a preferred embodiment, a comparator senses whether a user-supplied voltage at this input terminal is at a logic low level or not. If the voltage at this input terminal is at a logic level low, an internal voltage proportional to a pre-defined characteristic is enabled. If the voltage at this input terminal is not at a logic low level, the internal voltage proportional to the pre-defined characteristic is disconnected and a characteristic defined by the user, its value proportional to the user-supplied voltage present at the input terminal, is connected and activated.

REFERENCES:
patent: 4382198 (1983-05-01), Ishijima et al.

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