19. EXAMPLE 2 n f n (Hz) V n (V) Z n ( ) I n (A) P n (W) 1 60 127.3 13.7 9.27 429.3 3 180 42.3 30 1.42 10 5 300 25.5 48.2 0.53 1.4 7 420 18.2 66.7 0.27 0.37 9 540 14.1 85.4 0.17 0.14
35. PULSE WIDTH MODULATION IN UNIPOLAR INVERTERS The square wave output can be produced using a comparator to compare the triangle wave with the sine wave.