2006-01-30 03:56 PM
Idea of measuring RMS voltage and current using MCU ADC
2005-12-16 05:25 PM
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 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, arup2005-12-22 09:44 PM
Hi,
There will be soon an Application Note on this subject published on our web site. Best regards Laurent2005-12-22 11:03 PM
thanks for the info.what is expected time...could it be possible for you to tell about that.
regds, arup2006-01-30 03:56 PM
''Hi,
There will be soon an Application Note on this subject published on our web site. Best regards Laurent '' **************************************************** Dear Mr Laurent, Could you be able to give exact time frame ,atleast approximately, for this particular App Note to be available on this website. Thanks, Arup