Power detecting circuit, portable device and method for...

Details Power detecting circuit, portable device and method for... Power detecting circuit, portable device and method for...

2010-03-23

2011-12-27

Dinh, Son (Department: 2824)

Static information storage and retrieval

Powering

Data preservation

C365S189050

Reexamination Certificate

active

08085613

ABSTRACT:
In step S508, it is determined whether or not a power low signal SRC_LOSS outputted from the data latch is change. Generally Speaking, the power low signal SRC_LOSS outputted from the data latch would be changed according to the state of the power voltage of the power input terminal. When the power voltage of the power input terminal is charged/discharged to the common voltage, the power low signal SRC_LOSS outputted from the data latch may be changed from the logical high voltage to the logical low voltage or from the original logical low voltage to the logical high voltage. Since the mention above is design of selectiveness, the detailed description is omitted. When the determination is positive, the step S509is performed. When the determination is negative, the step S511is performed to re-detect.

REFERENCES:
patent: 7245547 (2007-07-01), Kim et al.

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