A true sinewave inverter uses a high frequency power oscillator to drive a small high frequency stepup transformer. The high voltage AC is rectified and is used to power a high frequency Pulse-Width-Modulated pair of Mosfets that make a stepped sine-wave.
Then an LC filter smooths the steps into a pure sine-wave.
Negative feedback is used for voltage regulation.
search for bubba osc. using lm348 quad operational amp. a pure sine wave
circuit. and if u need diagram for it i will provide u, simple circuit less external parts an ideal for ups.
search for bubba osc. using lm348 quad operational amp. a pure sine wave
circuit. and if u need diagram for it i will provide u, simple circuit less external parts an ideal for ups.
You cannot use a linear amplified sine-wave in an inverter. The amplifier will waste almost the same amount of power as the load by getting extremely hot. High frequency Pulse-Width-Modulation is used with the sine-wave creating the modulation. Then the output Mosfets switch and don't get too hot.
You cannot use a linear amplified sine-wave in an inverter. The amplifier will waste almost the same amount of power as the load by getting extremely hot. High frequency Pulse-Width-Modulation is used with the sine-wave creating the modulation. Then the output Mosfets switch and don't get too hot.