May 21, 2015 #1 D dahuangpeng Newbie level 5 Joined May 14, 2015 Messages 9 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 60 when i give a pulse wave which tr is 1us for the comparator, the current of the input NMOSFET had a opposite direction curent. who can tell me why was it hapend.
when i give a pulse wave which tr is 1us for the comparator, the current of the input NMOSFET had a opposite direction curent. who can tell me why was it hapend.
May 21, 2015 #2 Easyrider83 Advanced Member level 5 Joined Oct 11, 2011 Messages 1,608 Helped 374 Reputation 748 Reaction score 363 Trophy points 1,363 Location Tallinn, Estonia Activity points 8,575 Because gate of mosfet is a capacitor.