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50W Inverter Circuit 12VDC to 220VAC based MOSFET FQB45N03

12VDC to 220VAC Inverter with Sine Wave Output

Here the 50W inverter circuit build based power MOSFET FQB45N03 and IC TL494. This inverter will convert 12-14V DC input from car battery, become 220V AC output with 50Hz sine wave frequency.

The main oscillator, a voltage reference and comparator collected on DA2. External elements DD1 and DD2 repeated internal structure of the TL494, in the part that works is unstable at low frequencies (false positive D-flip-flop).

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