Battery-Voltage Measuring Regulator

  
This circuit allows a microprocessor system to measure its own battery voltage. A Texas Instrument TI43
Battery-Voltage Measuring Regulator - schematic

1 precision shunt regulator acts as a precision reference and integrator/amplifier, measuring its own supply via voltage-dependent charge/discharge time intervals. Notice that you must write a short control and voltage calculation software routine for your system.




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