Reply to "Narrow Version of DIY 317 Voltage Regulator Board, with Build Files"

stan2004 posted:
gunrunnerjohn posted:

FWIW, no extra components required, just a set of jumpers.  

IIRC, we had this discussion a few years back.  I believe if all 4 terminals of the bridge are soldered-in, you have to cut trace(s) on the board?  OTOH, if you know ahead of time that you want half-wave rectification for common-ground operation I think you can "simply" bend up one or more terminals of the bridge and solder less than 4 terminals.  Then add a jumper or whatever.  The point being cutting a trace with an x-acto knife or whatever is a bother.

In any case, the idea is to document these options, alternatives, etc. in the same spirit that the guys are consolidating the various PCB projects.

I was curious if these 3-D renderings allow you to "install" a 2-terminal diode into 2 of the 4 terminals of the bridge and show what it would look like.  Or, for example, to cut off or "bend up" one or more terminals of the bridge rectifier and show what it would look like installed. 

 

I think if you know ahead of time that you need a common ground, the easiest thing to do is leave the bridge out, put a diode across from the near ac connection to the #1 pad (+), and a jumper from the other ac connection to board ground. Presto, done. No trace cutting, no bending, no muss, no fuss! 

Rod

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