Sorry for my English.Can you help me with my problem with mosfet?
It is N channel mosfet IRF 830 (100 W,max U DS=500V) I need it in power switching- two identical mosfets with load ...Gates are driven with cmos astable circuit/one mos is on another off.I have not driver but between gate and ground resistor.Capacitance of Gate /source is 810 pF.at low frequency it goes well,but at khZ freq. are problems,although I changed resistor(lower value) there is also C in one cycle acumulates energy,in another dissipates.
U gs > Udd. thanks for your help
It is N channel mosfet IRF 830 (100 W,max U DS=500V) I need it in power switching- two identical mosfets with load ...Gates are driven with cmos astable circuit/one mos is on another off.I have not driver but between gate and ground resistor.Capacitance of Gate /source is 810 pF.at low frequency it goes well,but at khZ freq. are problems,although I changed resistor(lower value) there is also C in one cycle acumulates energy,in another dissipates.
U gs > Udd. thanks for your help
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