I happened to browse to this site to revise my Electronics knowledge

http://www.allaboutcircuits.com/vol_3/chpt_3/9.html
Volume III - Semiconductors » DIODES AND RECTIFIERS » Inductor commutating circuits

This page mentioned about how diode used to handle "kickback" issue for Inductor commutating circuits. As the article mentioning how the current flow in the circuits, the diagrams actually show the flow at opposite direction, which is the flow of electron in the circuit. Whether it WAS meant for the flow of electron or it was a mistake, this could result in misunderstanding of the readers. Please take notes...

Have a nice day


childs

 

Early on, the text defines "current flow" as electron flow. I suspect confusion will reign for as long as Benjamin Franklin's name is remembered. It is a pity that history ever came up with "conventional" current flow.

 

This is an ongoing confusion: http://forum.allaboutcircuits.com/showthread.php?t=8527

Dave