raco_rage
Member level 3
I have a circuit based on Low power PIC microcontroller. For the application, a battery will be used. To estimate the battery life, I want to measure the current consumed by the PIC and its peripheral circuit.
I already tried with a multimeter with mA range, but the PIC was not receiving power from the supply due to this. I think the internal resistance of the multimeter may be hindering the input current to the PIC, which should be consuming current in the range of a few uA to 100 uA.
I was thinking of charging a capacitor and then looking at its discharge pattern to determine the current consumed by PIC, but the capacitor is not able to drive the circuit.
Any suggestions from anyone on what possible techniques can be used??
I already tried with a multimeter with mA range, but the PIC was not receiving power from the supply due to this. I think the internal resistance of the multimeter may be hindering the input current to the PIC, which should be consuming current in the range of a few uA to 100 uA.
I was thinking of charging a capacitor and then looking at its discharge pattern to determine the current consumed by PIC, but the capacitor is not able to drive the circuit.
Any suggestions from anyone on what possible techniques can be used??