Sketch the low-power periodic signals, A, B, and C versus time that drive the high current power transistors in the (DC)-to-(three-phase-AC) switched-mode power supply of Figure P12.37, so that the load sees a balanced three-phase square-wave source.
Analysis:
A possible waveforms of these low power periodic signals are as follows.
The desired current flow in the WYE load is from (1)-(6), and then repeats again and again.
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