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 ?
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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.
http://www.picbasic.co.uk/forum/atta...1&d=1237827587
Quote:
Originally Posted by iugmoh
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..Quote:
Originally Posted by iugmoh
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.