Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1990-06-29
1991-12-24
Zazworsky, John
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307355, 307360, 307494, 307496, H03K 508
Patent
active
050755676
ABSTRACT:
An electronic switch circuit generates an output signal which is alternatively brought either into a first condition or into a second condition dependent upon a voltage level of an input signal. The electronic switch circuit includes first and second transistors which are mutually connected to form a differential circuit. A first bias circuit applies a first bias voltage to the first transistor. A second bias circuit applies to the second transistor a second bias voltage of a constant level which is independent of the voltage level of the input signal. The second bias voltage is different from the first bias voltage, when the voltage level of the input signal is smaller than a predetermined voltage level. When the voltage level of the input signal is not smaller than the predetermined voltage level, a control circuit operates to change the bias voltage for the second transistor so as to invert the large-and-small relationship between the bias voltages of the first and second transistors.
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NEC Corporation
Ouellette Scott A.
Zazworsky John
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