Miscellaneous active electrical nonlinear devices – circuits – and – Specific input to output function – Combining of plural signals
Patent
1995-12-12
1997-07-22
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific input to output function
Combining of plural signals
327 42, 327361, 455326, G06F 744, G06G 716
Patent
active
056507437
ABSTRACT:
A common mode controlled signal multiplier includes a pair of interconnected differential amplifiers, each of which receives a common mode signal and an input signal and generates one phase of a differential output signal. In one of the differential amplifiers, the common mode signal is applied to the input terminal of each transistor, while the input signal is applied differentially to the input terminals of the transistors. In the other differential amplifier, an inverse phase of the common mode signal is applied to the input terminal of each transistor, while the input signal is applied differentially to the input terminals of the transistors. The differential amplifiers together generate the differential output signal, with such differential output signal having output frequencies including a sum of and a difference between the frequencies of the common mode signal and the input signal.
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Bien David Edward
McDonald Mark Douglas
Callahan Timothy P.
National Semiconductor Corporation
Nu Ton My-Trang
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