Pure sine wave inverter

Inverter 12V inverter (DC 12V to AC 220v inverter) principle and the production process described here (see figure) FET mainly by MOS, constitute ordinary power transformer. Its output power depends on the transformer and power MOS FET power, eliminating the cumbersome transformer winding, for the use of electronic enthusiasts amateur productions.12 volt power inverters The following describes the working principle of the inverter and the production process.
12V inverter principle here we will detail the inverter works. CD4069 inverter used here constitute six square wave signal generator. R1 is a compensation resistor circuit, the oscillation frequency due to the power supply for improving the voltage variation caused by instability. Oscillation circuit is completed by the charging and discharging of the capacitor C1. solar inverters

The oscillation frequency is f = 1 / 2.2RC. The maximum frequency of the circuit diagram for fmax = 1 / 2.2 × 3.3 × 103 × 2.2 × 10-6 = 62.6Hz; minimum frequency fmin = 1 / 2.2 × 4.3 × 103 × 2.2 × 10-6 = 48.0Hz. Because of the error components, the actual value will be slightly different. Other extra inverter input is grounded to avoid affecting other circuits.