Active bypass for inhibiting high-frequency supply voltage varia

Details Active bypass for inhibiting high-frequency supply voltage varia Active bypass for inhibiting high-frequency supply voltage varia

1990-01-25

1991-09-17

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307542, 307520, 307491, 307263, 361 56, 361 91, 361111, H03K 1716, H03K 1760, H03K 19003, H03K 1714

Patent

active

050497642

ABSTRACT:
An integrated circuit (10, 22) contains an active bypass (36) that inhibits high-frequency supply-voltage variations caused by interaction of the circuitry elements (28) with the parasitic inductances (L.sub.HE, L.sub.HP, L.sub.LP, and L.sub.LE) associated with the power supply lines (16.sub.H /24.sub.H /26.sub.H /32.sub.H and 16.sub.L /24.sub.L /26.sub.L /32.sub.L) for the circuit. The bypass centers around a transistor (Q.sub.BP) coupled between the supply lines. An activation circuit (38) provides the transistor with a control signal (V.sub.C) to activate the transistor. A sensing capacitor (C.sub.S) provides a capacitive action between the transistor control electrode and one of the supply lines.

REFERENCES:
patent: 3619659 (1971-11-01), Meyer
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patent: 4686383 (1987-08-01), Croft
patent: 4740717 (1988-04-01), Fletcher et al.
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patent: 4924339 (1990-05-01), Atsumi et al.
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patent: 4947063 (1990-08-01), O'Shaughnessy et al.
patent: 4952822 (1990-08-01), Dikken
Widlar, "Some Circuit Design Techniques for Linear Integrated Circuit", IEEE Transactions on Circuit Theory; pp. 586-590, vol. CT-12, No. 4, Dec. 1985.

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