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The frequency of PWM is 1.2khz in my project .What type of lowpass filter would i required for better filtering ? does brickwall serves the purpose or should i use butterworth filter?
which type of filter will give desired pure sinewave (as much as possible) output of 220V .
yes, there are safety concern if you are first converting ac to dc and then stepping it down by the regulators ,dc handling is far more risky than ac , further more you will need a large value inductor which poses constrains in working with high frequencies. as far as i phone chargers are...
Actually i want to minimize the the sound produced by the fans (white noise) which would run by inverter , i have searched out that these sounds are produced due to the presence of unfiltered harmonics (other than fundamental harmonic).how would i achieve the the proper sinewave ?
i found out that there is no need of controller in inverter, inverter can be made according to the specification without using controller.... thanks for your help :)
i also encontered same problem during lcd interfacing which i later found out that bread board connections are not relaible ,signals may ride over one another .Solder the wires with lcd pins and then make connections, it will surely work :) *be careful during soldering it may damage your lcd *
How to implement controller in sine wave inverter? according to my knowledge if output (sine wave ) is compared with the a reference signal (sine wave) the output is a pulse wave. but i need a sine output for comparison with the triangular wave to generate PWM for the gate base drive. Kindly...
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