Comparing device having hysteresis characteristics and...

Details Comparing device having hysteresis characteristics and... Comparing device having hysteresis characteristics and...

2011-08-02

2011-08-02

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S089000

Reexamination Certificate

active

07990184

ABSTRACT:
Embodiments include a comparing device having hysteresis characteristics and a voltage regulator using the same. The voltage regulator includes a comparator which compares a comparison voltage with a reference voltage and outputs a result of the comparison, a switching controller which generates a plurality of switching signals in response to the comparison result, resistors connected in the form of a string to divide the comparison voltage into a plurality of voltages, and a switching box which selects one of the plural voltages as the comparison voltage in response to the switching signals.

REFERENCES:
patent: 4810948 (1989-03-01), Takuma
patent: 4857931 (1989-08-01), Gulczynski
patent: 5233329 (1993-08-01), Lippmann et al.
patent: 5376834 (1994-12-01), Carobolante
patent: 6826085 (2004-11-01), Shimasaki

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