I want to ask where I can put the flywheel protection diode across the winding motor or across (D-S) of mosfet and why , beacuse I damaged many mosfets and want to know what is the problem ?
flywheel diode
I want to ask where I can put the flywheel protection diode across the winding motor or across (D-S) of mosfet and why , beacuse I damaged many mosfets and want to know what is the problem ?
|
Check This circuit.
Originally Posted by iugmoh
"If the Earth were a single state, Istanbul would be its capital." Napoleon Bonaparte
|
oky I build the same circuit but without the pull down resistor and I add a 7 ohm resistor between the gate driver circuit and mosfet gate. But it's important to add a snubber circuit ?
|
The why part..
Think of an inductive load as an electrical spring. When the electrical pressure is released (turned off ) the current will reverse for a bit. The reverse current is what damages the MOSFET.
Dave
Always wear safety glasses while programming.
Members who have read this thread : 0You do not have permission to view the list of names.
Posting Permissions
Bookmarks