SWITCH-MODE INVERTER -EXAMPLE (ONE PHASE-LEG, HALF BRIDGE) A general analysis of the switch-mode inverter is to be done.

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Switch Mode Inverter Example One Phase Leg Half Bridge A General Analysis Of The Switch Mode Inverter Is To Be Done 1 (368.7 KiB) Viewed 17 times

SWITCH-MODE INVERTER -EXAMPLE (ONE PHASE-LEG, HALF BRIDGE) A general analysis of the switch-mode inverter is to be done. The switching frequency fs, which is also the frequency of the triangular signal is 1450 Hz. The DC voltage, Vd, is 600 V. Output voltage is sinusoidal voltage with a frequency equal to 50 Hz. The load is connected between the inverter leg A and the do voltage midpoint o. 1. Find the frequency modulation ratio, mf. 2. Calculate the output voltage (rms value of first harmonic), when the amplitude modulation ratio, ma, is equal to 0.8? 3. Compute the rms value of the 5 most dominant harmonics of VA. (at m=0.8), by using Table 8-1,. Also indicate the Ао frequencies at which these harmonics appear.