Delivereath
New Member
Hi,
I'm working on a power measurement on 230V (Europe) with wireless data transmission. The wireless link (2.4GHz) is already working. I'm now looking for any way to measure power consumption on a single phase 230V 50Hz line.
I think that I will use a MCP3909 chip to get active & apparent power but I don't now which current sensor I should use.
I'm thinking about a simple shunt resistor, a current transformer or some kind of hall effect sensor. Shunt is the easy way to do it but this brings a voltage drop on a supply line and an additionnal power consumption (heating).
I don't know anything about current transformer only that secondary should not be left open (high voltage).
Hall effect would be perfect however I'm not able to find a small (it will used on a 10x10cm PCB) with low current consumption (max 10mA) and have a good accuracy (1% error max).
Has someone already done something like this ?
Thanks for your help !
Delivereath
I'm working on a power measurement on 230V (Europe) with wireless data transmission. The wireless link (2.4GHz) is already working. I'm now looking for any way to measure power consumption on a single phase 230V 50Hz line.
I think that I will use a MCP3909 chip to get active & apparent power but I don't now which current sensor I should use.
I'm thinking about a simple shunt resistor, a current transformer or some kind of hall effect sensor. Shunt is the easy way to do it but this brings a voltage drop on a supply line and an additionnal power consumption (heating).
I don't know anything about current transformer only that secondary should not be left open (high voltage).
Hall effect would be perfect however I'm not able to find a small (it will used on a 10x10cm PCB) with low current consumption (max 10mA) and have a good accuracy (1% error max).
Has someone already done something like this ?
Thanks for your help !
Delivereath