Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1992-09-28
1994-05-31
Zazworsky, John
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
328 55, 328155, 307511, H03K 500, H03L 700, H03L 706
Patent
active
053172000
ABSTRACT:
In a phase shift circuit apparatus, first and second currents, produced by dividing signal current at a predetermined ratio by a variable bias voltage, are respectively supplied to fifth and eighth transistors which constitute the second differential amplification means, and the first and the second currents are respectively divided at predetermined ratios to supply currents, including square components; third, fourth, fifth and sixth currents which are caused to flow through fifth and sixth transistors of the third differential amplification means and seventh and eighth transistors of the fourth differential amplification means, respectively. Seventh and eighth currents which, produced by dividing signal current at predetermined ratios, are supplied to the ninth and the tenth transistors or the eleventh and the twelfth transistors from the first and the second connection nodes, respectively. In this event, currents which are first and second divided sum currents including square components at predetermined ratio are provided to the first and the second load resistances, and at the fourth connection node there is developed an output voltage by composing the first connection node voltage, which leads the input signal by a phase angle of 45.degree., with the second connection node voltage which lags the input signal by a phase angle of 45.degree., and the gain of the output is substantially constant within a variable range of phase.
REFERENCES:
patent: 4663594 (1987-05-01), Perkins
patent: 4737703 (1988-04-01), Hayakawa
patent: 4782246 (1988-11-01), Kuroyanagi et al.
Sony Corporation
Zazworsky John
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