Zero power power-on reset circuit

Details Zero power power-on reset circuit Zero power power-on reset circuit

1997-11-25

1999-08-10

Wells, Kenneth B.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

327142, 327198, 327546, H03K 1722

Patent

active

059364440

ABSTRACT:
A power-on-reset circuit includes a first charging stage for building up a charge during power up. The rising voltage of the first charging stage is sensed and used to control means for charging up a second charging stage. When the second charging stage reaches a first voltage level, a circuit is tripped to pull the potential of the first to ground. The grounding of the first charging stage is fed back to the charging means which shuts off its power burning components and maintains the first voltage level at the second charging stage.

REFERENCES:
patent: 4409501 (1983-10-01), Eickerman et al.
patent: 4634904 (1987-01-01), Wong
patent: 4746822 (1988-05-01), Mahoney
patent: 4900950 (1990-02-01), Dubujet
patent: 5703510 (1997-12-01), Iketani et al.
patent: 5821788 (1998-10-01), Pascucci et al.
patent: 5912001 (1998-09-01), Imamiya

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