2024-08-28 05:25 AM
I'm designing a unipolar sine wave inverter using a lookup table to generate PWM signals, but I'm encountering some issues and have a few questions:
I'm struggling with these concepts, and any guidance or examples would be greatly appreciated. Thank you!
2024-08-28 06:26 AM
1/ The values in the lookup table should represent the amplitude of the sine wave at different points in the cycle. Typically, these values start from zero and go up to the peak value of the sine wave.
2/ yes, you can generate the first half-cycle and then change the polarity to complete the full cycle.
3/ after generating the first half-cycle (0 to 180 degrees), you can use the same lookup table values but invert the output to generate the second half-cycle (180 to 360 degrees).
5/ ensure that the two channels are properly synchronized and there is an appropriate dead time between the complementary signals.
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