Power-up/power-down reset circuit for low voltage interval

Details Power-up/power-down reset circuit for low voltage interval Power-up/power-down reset circuit for low voltage interval

1996-04-29

1997-11-11

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

327198, 327534, H03L 700

Patent

active

056868480

ABSTRACT:
A power up, power down reset circuit formed of charge storage apparatus for receiving and storing charge from one pole of a voltage supply, a pair of complementary field effect transistors having source-drain circuits connected in series aiding direction between the charge storage apparatus and another pole of the voltage supply, apparatus for connecting the one pole of the voltage supply to a gate of one transistor of the pair of transistors, apparatus for applying a voltage derived from the one pole of the voltage supply but having a value reduced from voltage of the voltage supply, to a gate of another transistor of the pair of transistors, and apparatus for providing a reset pulse from a junction between the source-drain circuits of the pair of transistors.

REFERENCES:
patent: 4746822 (1988-05-01), Mahoney
patent: 4983857 (1991-01-01), Steele
patent: 5203867 (1993-04-01), Love et al.

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