Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1987-11-17
1989-05-30
Hudspeth, David
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307446, 307454, 307482, 307246, H03K 19013
Patent
active
048354201
ABSTRACT:
A method and apparatus for converting input signals at one predetermined logic level to output signals at corresponding different logic levels includes differential amplification of input signals with a first output of a differential amplifier connected for establishing a voltage level between voltage limits V.sub.cc and V.sub.ee at the output of an output driver in response to variations in amplifier output. A pull-down transistor has a collector connected to the output driver output, an emitter connected to the V.sub.ee voltage source, and a base capacitively coupled to the second amplifier output. In further aspects of the invention, a voltage clamp embracing a transistor with a base connected to receive a predetermined control voltage has an emitter connected to the pull-down transistor base and a collector connected to the V.sub.cc voltage source.
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Applied Micro Circuits Corporation
Hudspeth David
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