a low cost PWM dimmer using NE555 and MOSFET with DIY aluminium case.
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Step 1: Aluminum Case From Aluminum Square Tube.
aluminum case has dual role.
first one is protection cover.
and second is heat sink forMOSFET.
Step 2: Drilling Holes
POT fixing on aluminum case.
Step 3: Circuit Diagram
1, 555 ic
2, MOSFET IRFP510
3, diodes 1N4148 x 2
4, capacitors -ceramic- 100nf ,10nf 47uf/35v
5, Pot 100 K Linear
6, resistor 10K
circuit diagram source:
Step 4: Circuit Board Soldering.
Step 5: Final Assembly
Step 6: Testing With 12V/35W Lamp
Step 7: Working Video
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