arup
Member level 2
Dear sir,
I have a project which needs to measure Supply Voltage and Current.I want to measure them using only MCu adc (ST7 with 10 bit ADC and 6 analog i/p channel).Could anybody help me ??I want a tested circuit and also want the design idea/steps to develope this firmware to measure voltage and current rms value.I believe supply input voltage is always RMS if it is not mentioned.so i don't have to take voltage sample ,square ,take average and take root of it.Or do I??Pls correct me if i am wrong.
pls note the max voltage and current for the system to measure are 260 V and 30 A respectively.And I know how to configure the adc for this particular MCU
Thanks,
arup
I have a project which needs to measure Supply Voltage and Current.I want to measure them using only MCu adc (ST7 with 10 bit ADC and 6 analog i/p channel).Could anybody help me ??I want a tested circuit and also want the design idea/steps to develope this firmware to measure voltage and current rms value.I believe supply input voltage is always RMS if it is not mentioned.so i don't have to take voltage sample ,square ,take average and take root of it.Or do I??Pls correct me if i am wrong.
pls note the max voltage and current for the system to measure are 260 V and 30 A respectively.And I know how to configure the adc for this particular MCU
Thanks,
arup