Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1983-11-28
1987-09-29
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307443, 307448, 307450, 307297, H03K 1714, H03K 19094
Patent
active
046971106
ABSTRACT:
An input buffer for a semiconductor circuit is provided with a source follower circuit composed of a first FET whose gate electrode has an input connected thereto, and a second FET of the same conductivity type as that of the first FET, whose drain electrode is connected to a source electrode of the first FET directly or through at least one level-shifting diode and whose gate electrode is supplied with a control voltage. The input buffer also includes a FET inverter circuit connected to the drain electrode of the second FET directly or through at least one level-shifting diode. An output signal for the input buffer is derived from the FET inverter circuit. A particular advantage of the present invention is that it permits the input buffer to switch its output from one level to another in response to input signals falling within a predetermined voltage range regardless of logic threshold level fluctuations in the FETs and fluctuations in supply voltages coupled to the input buffer.
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Asano Michio
Hayashi Takehisa
Masaki Akira
Masuda Noboru
Tanaka Hirotoshi
Hitachi , Ltd.
Hudspeth D. R.
Miller Stanley D.
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