Load programmable output buffer

Details Load programmable output buffer Load programmable output buffer

1992-11-05

1994-06-07

Callahan, Timothy P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307572, 307592, 307597, G05F 308, H03K 512

Patent

active

053192524

ABSTRACT:
The present invention reduces bounce in the power or ground supply voltages of an integrated circuit chip by gradually turning output drivers both on and off, so there is not a sharp discontinuity in current flow to an external device. Greatest current flow occurs at the middle of a transition period. The gradual turn-off at the end of a transition is achieved by feeding back voltage of the output signal to a device which controls the output driver. As output voltage approaches its final value, the output driver gradually turns off, preventing a sharp transient in the power or ground voltage of the integrated circuit chip.

REFERENCES:
patent: 4701635 (1987-10-01), Kawazoe et al.
patent: 4894560 (1990-01-01), Chung
patent: 4906871 (1990-03-01), Iida

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