Submitted by TrystanLea on Tue, 01/12/2010 - 19:12.
Hey Joachim. That doesn't sounds to good! Your right 5.5V+2.5V will be no good for the arduino. What size resistor have you connected in parallel to it?
The measured signal can be decreased by decreasing the size of the resistor in parallel with the CT. Im using a 56 Ohm resistor for measuring the whole house. Gives me a range of 0 - about 10kW. At 10kW the rms Voltage across the resistor is about 1.75V (peak voltage 2.5V)
Hey Joachim. That doesn't
Hey Joachim. That doesn't sounds to good! Your right 5.5V+2.5V will be no good for the arduino. What size resistor have you connected in parallel to it?
The measured signal can be decreased by decreasing the size of the resistor in parallel with the CT. Im using a 56 Ohm resistor for measuring the whole house. Gives me a range of 0 - about 10kW. At 10kW the rms Voltage across the resistor is about 1.75V (peak voltage 2.5V)