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