On Mon, Jul 22, 2019 at 7:27 PM AB Pearce - UKRI STFC wrote: > > > Personally I would wind it with a single shield and then make sure that= on the primary side the winding end against the shield is connected to the= supply rather than the transistor. Slightly confused by this statement. If you look at the presentation from Ridley, he states the power supply end needs to be the farthest from output ground. (Page #7) for a low noise configuration. http://tiny.cc/pgm29y In which case a bank winding would allow the most distance between the 2 ends, right ? > > > >> I was of the assumption that the shield should be Grounded. But you me= ntion Supply. > >> I've been looking at different designs. I see that most of them have t= he shield connected > >> to the Aux/Bias power supply (not ground). Any idea, why ? > > The shield should be grounded, but here I was talking about the supply en= d of the primary winding. > > Connecting to some other supply may allow lower capacitance or leakage or= coupling between windings. I don't recall seeing a circuit done this way t= hough. > > Perhaps a link to a reference is in order? Sure, I was looking at this one, atm: http://www.ti.com/lit/ug/sluuax9b/sluuax9b.pdf (Page #5, #20) --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .