Integrated power-on reset circuit

Details Integrated power-on reset circuit Integrated power-on reset circuit

1991-02-15

1992-04-28

Westin, Edward P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307594, 307597, 3072965, H03K 1720, H03K 1722, H03K 5153, H03K 17687

Patent

active

051091631

ABSTRACT:
A circuit, which may be included as part of an integrated circuit chip including a microprocessor or other device needing initialization when being powered up, generates a reset signal at a time determined by the voltage rise characteristics of the power supply to the device when either initially turned on to the device or recovering from a voltage dip. A power supply sensing node of the circuit is initially discharged to ground potential in order to eliminate any effect of a charge on the node on the timing of the reset signal, such as might be generated by an ambient electromagnetic field.

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patent: 4948995 (1990-08-01), Takahashi
patent: 4970408 (1990-11-01), Hanke et al.
patent: 4983857 (1991-01-01), Steele

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