Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control
Patent
1996-03-06
1997-10-28
Nelms, David C.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Amplitude control
327333, 327108, 36518911, 365226, H03L 500, H03B 100, G11C 700, G11C 800
Patent
active
056821158
ABSTRACT:
An embodiment of the present invention provides a method to reduce a regulated power source voltage spike during operation of a dynamic random access memory by the steps of: providing a voltage spike reducer enabling pulse via a pulse generator circuit responsive to a pulse generator input signal; translating the voltage level of an unregulated power source via a level translation stage during the presence of the voltage spike reducer enabling pulse; amplifying a translated voltage level; and providing a measure of current from the unregulated power supply to the regulated power supply via a current driver stage that is responsive to the amplified translated voltage level translation. The method is realize by in a CMOS active pull-up voltage spike reducing circuit for a semiconductor device comprising: first, second and third potentials for powering the active pull-up voltage spike reducing circuitry; a pulse generator stage responsive to a pulse generator input signal; a level translator stage responsive to an output pulse of the pulse generator circuit; a translated driver stage responsive to an output of the level translator stage; and a current driver stage responsive to said translated driver stage to thereby provide additional current to the third potential.
REFERENCES:
patent: 4663701 (1987-05-01), Stotts
patent: 4886984 (1989-12-01), Nakaoka
patent: 4982111 (1991-01-01), Nakaizumi
patent: 5444408 (1995-08-01), Merritt
patent: 5525926 (1996-06-01), Merritt
Micro)n Technology, Inc.
Nelms David C.
Phan Trong Quang
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