Voltage detector circuit with a programmable threshold point

Details Voltage detector circuit with a programmable threshold point Voltage detector circuit with a programmable threshold point

2005-04-26

2005-04-26

Pert, Evan (Department: 2829)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S763010

Reexamination Certificate

active

06885215

ABSTRACT:
A voltage detector including a voltage following circuit connected to a power supply and operable to follow a voltage value of the power supply, a selectable threshold point circuit connected to the voltage following circuit and operable to select one of a plurality of values for a threshold point of the power supply, and a switch circuit coupled to the selectable threshold point circuit and the voltage following circuit, the switch circuit cooperating with the selectable threshold point circuit to generate an output indicating whether the value of the power supply has increased above or decreased below the selected value for the threshold point in response to the followed value of the power supply.

REFERENCES:
patent: 5132565 (1992-07-01), Kuzumoto
patent: 5444663 (1995-08-01), Furuno et al.
patent: 5497117 (1996-03-01), Nakajima et al.
patent: 6157222 (2000-12-01), Yaklin
ASSP Power Supply Monitor MB3771, Fujitsu Ltd. 1994 (DS04-27400-SE), 20 pages.

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