On Saturday 30 January 2016 03:24:51 Peter Blodow wrote: > Hello Gene, > > R,S and T are just the traditional names of the incoming 3-phase mains > supply, very common over here, but out of date. They were replaced by > L1, L2, L3. This comes from the usual motor or transformer hookup. > U,V, W were the motor (or transf.) leads while X,Y,Z were the ends of > the rotor windings (in case of brushed rotor for soft start and power > control) or transf. secondary. > > It does not matter how you get those big capacitors charged, from two > or three phases or from a 500 V DC net as some big machine shops > provide. Just connect your mains and measure the resulting DC voltage. > The following switching supply will never know where the DC voltage > comes from, unless it's to low or has too much ripple, maybe. > > Peter
Thanks Peter. I thought it was odd that an obviously pretty fresh design wasn't using the L1/L2/L3 designators. But this particular area is obviously new to me so I thought I'd better check. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
