I calculated the burden resistor and the result was 177 Ohms resistance.
- What resistor is better, 174 Ohms or 178 Ohms resistor?
- Is it ok if I use a 10K resistor as a biasing voltage divider (Rvd) as is shown in the tutorial?
- In this schematic (http://openenergymonitor.org/emon/sites/default/files/current.png
) there is a capacitor (C1). What's his value?
Thanks in advance
I'd use the lower resistor to keep the voltage from going over 5V.
The first article you pointed to says:
"Current sensing electronics
1x CT sensor yhdc SCT-013-000
1x Burden resistor 18 Ohms if supply voltage is 3.3V or 33 Ohms if supply voltage is 5V.
2x 10kOhm resistors (or any equall valued resistor pair upto 470kOhm)
1x 10uF capacitor"
So I think 10K is a good choice for RDV and 10 uF for the capacitor.