dkn
Junior Member level 1
![Junior Member level 1](/styles/images/ranks/clevel1.gif)
Hi.
I am using the H11AA1X optocoupler to detect zerocrossing. This is working fine, however the resistors to limit the current gets pretty hot.
I am running 230v ac and im not up for a transformer.
The resistors I use are 2 x 22k 1watts.
So any better values or ideas ?
Thank you very much for your time.
// Dennis
I am using the H11AA1X optocoupler to detect zerocrossing. This is working fine, however the resistors to limit the current gets pretty hot.
I am running 230v ac and im not up for a transformer.
The resistors I use are 2 x 22k 1watts.
So any better values or ideas ?
Thank you very much for your time.
// Dennis