# Irfp250n n channel mosfet gate charge problem?

I thought of changing and using a mosfet with n channels instead p channels. I connected the mosfet's source leg to the minus pole. I connected the drain leg of the mosfet to the plus pole. In this way, MOSFET will think that it is sending electricity to the minus pole and n Channel mosfet will work and connect positive + pole like P channel mosfets. I connected a lamp where the positive electricity was. The result is successful because it worked without any problems. But the arduino did not charge the mosfet gate leg. Later I saw that the plus pole of the mosfet was operating the gate leg when it is connected. Then I connected the plus pole of the mosfet to the minus pole of the arduino uno and the arduino uno started the mosfet smoothly. But I can do this with a maximum of 20 volts because the electric current coming to the gate leg is equal to the sum of 5.5 volts and 20 volts. When I use 100 volts, the electric current coming to the gate leg is 105 volts. Then the mosfet explodes. How can I solve this problem and run MOSFET with 100 volts. I can't charge mosfet gate leg any other voltage source. I can only charge their drain positive voltage source. I need to use n channel mosfet like p channel. How can I fix this charge problem ? Mosfet have only 20 volt Vgs limit capacity in gate leg. When I give it 105 volt it exploded like a bomb .

• Your text is now a "wall of text" making it hard to read. Please divide it into a couple of paragraphs for better reading. When I use 100 volts Seeing your circuit and how you write about it, I conclude that you're not yet experienced enough to work with anything above 50 V. Making Arduino + MOSFET work at 100 V can be done but you really need to know what you're doing to prevent blowing up components but also not getting electrocuted. Commented Nov 29, 2020 at 20:53
• I need to use n channel mosfet like p channel. NMOS and a PMOS are both MOSFETs and they can be used in the same way but you will have to reverse all polarities in order to "use an NMOS like a PMOS" that includes swapping the polarity of the Arduino which cannot be done just like that. I suggest you do some studying on Arduino, MOSFETs and switching a load on/off. Commented Nov 29, 2020 at 21:01