Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-04-04
2006-04-04
Nguyen, Hung (Department: 2636)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S636120, C340S636150, C340S635000, C340S653000, C340S660000, C340S662000, C340S663000, C320S136000, C320S150000
Reexamination Certificate
active
07023352
ABSTRACT:
A voltage-detecting circuit includes a CPU, a comparator, a first resistor, a second resistor, and at least a power level segment detector connected in parallel with the first resistor, the power level segment detector having a third resistor and a first switch serially connected to the third resistor. The battery is electrically connected to a first input end of the comparator. The first resistor is electrically connected between a second input end of the comparator and a reference voltage. The second resistor is electrically connected between the second input end of the comparator and ground. The method includes outputting a control signal with the CPU to control the first switch by determining voltage levels at the output end of the comparator, and outputting a power indication signal with the CPU to indicate the voltage level of the battery by determining voltage levels at the output end of the comparator.
REFERENCES:
patent: 4709202 (1987-11-01), Koenck et al.
patent: 5900717 (1999-05-01), Lee
Lan Jen-Hong
Tseng Li-Ming
BenQ Corporation
Hsu Winston
Nguyen Hung
LandOfFree
Voltage-detecting method and related circuits does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Voltage-detecting method and related circuits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage-detecting method and related circuits will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3546096