Hi, At 23.15 2012.02.18, you wrote: >Lowering your leakage inductance will help some. Of the stator? I ask because as far as I know leakage inductance applies to transformers (the stator in this case can be thought as one), not to inductors, except maybe parasitic ones? Cheers, Mario > >Electron wrote: > >> >>Hello, >>I have a PIC-based boost switch-mode power supply that is working great, >>but unfortunately it emits quite some RF, every time it's switching. >> >>I have thus decided to use a snubber, are there any good engineering >>practices, or interesting tricks to follow? >> >>I guess there's very little I can do on the PIC software side, strategy >>wise, as the problem is inherent in the boost topology.. i.e. the voltage >>has to rise a lot so that the inductor can add some energy to an already >>nearly fully charged capacitor. >> >>The bad thing is that if I make each switching slower, I will dissipate >>energy in the switching transistor. If I use a snubber, I will probably >>dissipate the same energy there. It's not even going to be much useful >>to lower the switching frequency, as the trouble (interference) I'm getti= ng, >>is coming from every switch event. Also I cannot change the cable, to >>isolate the wires of the sensor from the wires that carry the interferenc= e >>(the wires that go into the inductor (a stator actually)). >> >>Thanks for any hints, >>Mario >> >>--=20 >>http://www.piclist.com PIC/SX FAQ & list archive >>View/change your membership options at >>http://mailman.mit.edu/mailman/listinfo/piclist > >--=20 >http://www.piclist.com PIC/SX FAQ & list archive >View/change your membership options at >http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .