Tasel

This inverter circuit is very useful for low load application such as emergency light, radio, or DVD player. With transistors as main active component, please take more attention when you assemble this 100 W inverter circuit.
Power source of this circuit just 12V DC, but can produce about 100W at 220V AC with simple assembling and not need a lot of parts.
Here are the PCB and component parts of the 100W Inverter circuit.

Component Parts
R1, R4, R6, R7____________________10K
R2, R3__________________________150K
R5, R8__________________________47K
R9, R12_________________________220
R10, R13________________________560
R11, R14________________________100K
R15, R16________________________10/10W
R17, R18________________________150
C1, C2__________________________473
C3, C4__________________________103
C5______________________________1mF
C6, C7__________________________104
c8______________________________220/16V
D1 – D4_________________________4148
D5, D6__________________________4007
Q1 – Q4_________________________BC557
Q5, Q6__________________________BD139
Q7, Q8__________________________3055

PCB Layout

Component Layout