how to generate pulses with 180 deg phase shift
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i require 4 pulses for full bridge inverter. In one leg with out phase delay and on other leg with phse delay if 180 deg. here fs=60khz so ts=1/60000 dead time =0.5e-6 first leg phase shift= 0 here i generate two signals using pulse generator.now i require two pulses for 2nd leg with phase shift of 180 deg
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Dishant Arora
2014-6-13
编辑：Dishant Arora
2014-6-13
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A phase shift is equivalent to multiplication by a complex exponential in frequency domain. Take an fft of the whole signal and multiply each component (as a complex number) by the complex number cos(p) + i * sin(p) where p is the phase-shift given in radians. Afterwards take the inverse transform and you are done.
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Armando Marchena
2015-11-24
Hi there Dishant Arora, I am thrying to do the same phase shift PWM. By multiplying each component, do you mean I have to take the FFT the split that into Re and Im, then multiply each by the fucntion cos(p) + i * sin(p) ?
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