deletions | additions       diff --git a/Bath Power System.tex b/Bath Power System.tex  index 079d7d4..25a2cb2 100644  --- a/Bath Power System.tex  +++ b/Bath Power System.tex 
...
Some transistors are designed with built in ``ratiometric current sense transistors'', which use a portion of the transistor to create and isolated sense transistor. When the transistor is on, the current through the sense transistor will be a ratio of the overall current. Depending upon the model used, the accuracy can range from 5\% to 20\%, making them unsuitable for precise current control applications.  *** Need to add some stuff on external sensing - transformers, Hall, magnetics and stuff... ***  \subsection{Current Control}