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Battery Level Indicator

January 25, 2011 Rend 0

A battery level indicator circuit is depicted in the schematic diagram below. This circuit is designed for 9V battery operation, as this circuit will start […]

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Single-Cell Voltage Monitor

January 12, 2011 Rend 0

Monitoring battery voltage can be important in some application.  Some battery monitor will be simply a continuous LED lamp which is dimming according to the […]