N Channel Mosfet driver


N Channel Mosfet driver.

for a transformer driver and pulses the primary. not direct pulse to the inductor.

You can use this for an arduino or from a 5 volt frequency generator. you need a 12 volt power supply and a 5 volt signal an irf640 handles 15 amps. mosfets are trigured by voltage. the irf640 triggers with roughly10 volts


The npn part number  is a 2n3904 which is sold at radio shack in a pack of common npns




Used a 2n3906 for the pnp, also from radioshack. package of common pnp transistors http://mac6.ma.psu.edu/roadSideWind/electronics/2N3906.pdf