Gday Fahim
Quote:
|
one of wiser ones told me i could always use a rectifier at the output to reduce RFI caused by the inductive wire loads. What do you think?
|
In the words of the castle, he's dreamin.
The RFI from the PIC/Controller is easily covered
However, as the system uses PWM as its output, ALL wires going to and from the heater wires have up to 2Amp / 12V squarewaves pulsing along them.
( Ref my earlier post ) As such, the RFI comes from the leads and the heater wires, not the controller.
You could apply massive LC output filters, but thats starting to get bulky and costly. In most cases its not warranted.
All the Dickies controllers ( and my type 1 and 2 ) put out RFI from the wires, its just something to be wary of if you see interference in other things ( like wireless video feeds etc ). I havent had any probs with my scope so far,
but thats not an absolutely conclusive test.
Andrew