🚀 go-pugleaf

Thanks guys,
The supply voltage to this circuit is meant to be 5 volts (as per
schematic);
now when I disconect the load (circuit ahead) then should that 5 volts
actually measure a bit higher than stated?
Ali




"Charles Schuler" <charleschuler@comcast.net> wrote in message news:<EJadne0UUsj-7o_fRVn-ug@comcast.com>...
> "alitonto" <alitonto@hotmail.com> wrote in message 
> news:1108475705.096838.197480@z14g2000cwz.googlegroups.com...
> > Hello,
> > I am trying to work out in particular which component is most likely to
> > cause a reduced voltage at the supply point to its circuit. I suspect
> > there is something pulling too much current ahead, becuase when I
> > disconnect the circuit then the supplied voltage returns to normal
> > measurement.
> 
> Generally, three things can be considered here.  (1) V=IR so if I, the 
> current, or R, the resistance is too high, V, the voltage drop, will be 
> excessive.  (2) Some power supplies use current limiting which kicks in at a 
> given point and then they switch over to a constant current mode (as opposed 
> to constant voltage mode).  (3) Some power supplies use fold-back current 
> limiting which also kicks in at a given point but the current folds back 
> which makes the voltage drop at the load even more severe.
> 
> Could be the load is partly shorted, or a series resistance has gone up in 
> value, or a faulty connection, or a faulty power supply.  Troubleshooting is 
> usually a process of elimination.