Introduction: Pwm Driver With 555
making a powerfull 12v pwm controler for leds or dc motor
Step 1: Print Pcb
open .pcb file with pcb express
and print it
i use toner transfer method
Attachments
Step 2: Circuit Diagram
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 (-)
Step 3: Drill the Holes and Solder the Parts
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
Step 4: Add the Wires
add all wires, clean the pcb
and test it
Step 5: Paint the Pcb
if you dont have solder mask to protect your circuit paint it with a high temp spray
Step 6: Finish With the Wires
when you finish with the wires add some hot glue at the cables
Step 7: Find or Print a Box for the Circuit
if you have a 3d printer download the .stl files and print it
Step 8: Finish the Project
put all ''thinks'' in the box carefully!!
glue the box cover with instant glue..
Step 9: End
end
now you can drive leds or motors
thanks!!