Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1987-07-14
1989-02-21
Heyman, John S.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307443, 307450, 307473, 307482, 307491, H03K 19017, H03K 1716, G06G 710
Patent
active
048067989
ABSTRACT:
In order to produce an output signal swinging its voltage level between a supply voltage level V.sub.CC and the ground level, there is provided a buffer circuit comprising a series combination of first and second transistors connected between a source of voltage and the ground, an output node provided between the first and second transistors, a first logic gate responsive to an input signal and a high-impedance state requesting signal and producing a first drive signal applied to the control electrode of the first transistor, a second logic gate responsive to a complementary signal of said input signal and said high-impedance state requesting signal and producing a second drive signal applied to the control electrode of the second transistor, a booster circuit operative to boost up the voltage level of the first drive signal, and a clamping circuit operative to limit the voltage level of the first drive signal at a preselected value higher than that of the source of voltage, so that the first transistor is supplied with the boosted first drive signal of the preselected level.
REFERENCES:
patent: 4585958 (1986-04-01), Chung et al.
Heyman John S.
NEC Corporation
Wambach M. R.
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