On Jan 26, 2017 6:37 AM, "Ken KM4NFQ" <km4nfq@...> wrote:
Try this one:
#209: Basics of Phase Dots on Transformer Windings
Published on Aug 11, 2015
This
video describes what the "phase dots" are that you often see adjacent
to windings of a transformer. It discusses how these dots are used in
certain circuits to establish a desired phase relationship between the
signals on the various windings. A couple of tips are given regarding
how to determine the phasing relationship on homebrew transformers.
Finally, measurements are made with an oscilloscope on a trifilar wound
transformer to see the phase relationship between the signals on each of
the windings with respect to the phasing dots.
73
On Wed, Jan 25, 2017 at 9:26 AM, Bob V <rjvnyc@...> wrote:
Could someone direct me to an easy-to-understand discussion of how to interpret dots intended to clarify winding of transformers??
Perhaps there is a "transformer winding for dummies" paper somewhere?
