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12VDC – 220VAC INVERTER USING CMOS CD4047 CIRCUIT

2016-04-23 03:19  
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12VDC – 220VAC INVERTER USING CMOS CD4047 CIRCUIT SCHEMATIC DIAGRAM
The inverter circuit has a central component, the CMOS 4047, and converts a 12V DC voltage to 220V AC voltage. 4047 is utilised as a astable multivibrator. At pin 10 and 11 we find a rectangular symmetrically signal which is amplified by tow Darlington transistors T1 and T2 and finally reaches the secondary coil of a transformer network (2 x 10V/100VA). Primary coil terminals voltage is 220 alternative voltage. To obtain a better performance use a toroidal core transformer with reduced losses. With P1 the output frequency can be regulated between certain limits (50…400Hz).