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how to interface current transformer to ARM7- LPC2148? Answered


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Is this a "real" CT or a Hall Sensor type ?

For an engineering problem, you don't give much data. What's the CT ratio ? What precision do you need ? What input range does the ARM board need ? Are you aiming to measure true RMS current and voltage by dynamic measurement, or through an external chip ?

Steve

What are you trying to do ?

we are measuring energy consumption with control of ARM7

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ARJOON

7 years ago

be clearer