Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1984-09-07
1986-10-28
Heyman, John S.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307455, 307475, 307491, 307494, 307359, 307296R, H03K 1716, H03K 19086
Patent
active
046201157
ABSTRACT:
A line receiver circuit having an input hysteresis characteristic which is compensated for both temperature changes and variations in supply voltage includes a receiver circuit portion, a bandgap circuit portion, a first voltage divider network, a second voltage divider network, and a feedback switching transistor. The receiver circuit portion is responsive to an input logic signal for generating an output signal. The bandgap circuit portion generates a constant reference voltage. The first and second voltage divider networks are operatively connected to the constant reference voltage. The switching transistor is responsive to the output signal for switching between the first voltage divider network generating a high threshold voltage when the input logic signal is in the low level state and the second voltage divider network generating a low threshold voltage when the input logic signal is in the high level state.
REFERENCES:
patent: 4329597 (1982-05-01), Yamagiwa
patent: 4506171 (1985-03-01), Evans et al.
patent: 4563600 (1986-01-01), Kobayashi et al.
Lee Gil S.
Subramaniam A. Ram
Advanced Micro Devices , Inc.
Chin Davis
Heyman John S.
Hudspeth D. R.
King Patrick T.
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