Post by thread:Driving Motors - protection diodes

You may need some protection diodes. Motors create a lot of back EMF when turned off. This would be especially true if the bases were driven from separate port pins where there is a delay between the drive of the two transistors. {Quote hidden}> > 3 V ____ > | | > | | > |< | > o----220-----| _ > | |\ ^ D1 you may need protection diodes > | | | > | | | >PIC-o o----o------ > | | | > | | | > | |/ | > o----220-----| _ > |> ^ D2 > | | > | | > |____| > Gnd > spam_OUTbryanTakeThisOuTwllink.com