Pwm Driver With 555

making a powerfull 12v pwm controler for leds or dc motor

open .pcb file with pcb express

and print it

i use toner transfer method

take a look at the circuit diagram

be careful with the polarity every time

better add a fuse at the (+)

this circuit is with N-Channel mosfet and output control the (-)

the parts

• 1x 555 timer
• 1x N-channel mosfet (i find it from a broken loptop's motherboard,take a look at mosfet's, you find, datasheet)
• 2x diodes 1N4148
• 1x diode 1N4007 (this is not on the pcb i forgot it..you can add it on the motor be careful with the polarity )
• 1x capasitor 100nf
• 1x capasitor 1000uF16v
• 1x resistor 1 k
• 1x resistor 40 Ohm
• 1x 50k potentiometer

add all wires, clean the pcb

and test it

if you dont have solder mask to protect your circuit paint it with a high temp spray

when you finish with the wires add some hot glue at the cables

if you have a 3d printer download the .stl files and print it

put all ''thinks'' in the box carefully!!

glue the box cover with instant glue..

end

now you can drive leds or motors

thanks!!