Voltage monitoring circuit in an integrated circuit

Details Voltage monitoring circuit in an integrated circuit Voltage monitoring circuit in an integrated circuit

1997-05-21

1999-07-20

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Capacitor charging or discharging

323284, 323314, 323316, H02J 712, G05F 140

Patent

active

059260092

ABSTRACT:
A voltage watching circuit including a external supply voltage receiver for being charged by an external supply voltage to produce a charged voltage, a watched voltage detecting section for inverting its output if the charged voltage provided from the external supply voltage receiver reaches a predetermined level, a latch section for latching an output of the watched voltage detecting section, and a reset section for resetting the latch section until the charged voltage of the external supply voltage receiver reaches the predetermined level. According to the circuit, the voltage watching with a proper voltage level is possible regardless of the variation of the temperature and process parameters, and a low power-consumption is achieved.

REFERENCES:
patent: 5264780 (1993-11-01), Bruer et al.
patent: 5367247 (1994-11-01), Blocher et al.
patent: 5440263 (1995-08-01), Fournel et al.

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