DC bootstrapped unity gain buffer

Details DC bootstrapped unity gain buffer DC bootstrapped unity gain buffer

1990-03-02

1991-04-30

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307542, 307482, 307570, 3072963, H03K 1902, H03K 19094

Patent

active

050121340

ABSTRACT:
A method and apparatus for a buffer for providing approximately unity gain to an input signal is shown to include a field effect transistor, wherein the input signal is applied to the gate of the field effect transistor, a first bias source such as a current source, connected to the field effect transistor, the first bias source having a first bias value, a transistor, having its base connected to the field effect transistor, a second bias source such as a current source connected to the field effect transistor, the second bias source having a bias value greater than the first bias value and a resistor, connected between the first bias source and the transistor for maintaining the drain-source voltage of the field effect transistor at a relatively constant value.

REFERENCES:
patent: 4760293 (1988-07-01), Hebenstreit
patent: 4857772 (1989-08-01), Herndon
P. Horowitz, et al., The Art of Electronics, New York, Press Syndicate of the University of Cambridge, 1983, p. 229.

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