A single-phase full-bridge inverter has a DC input voltage of 123 V, and supplies an inductive load with a square-wave voltage at a frequency of 50 Hz. The output current is given by i=28.28 sin (314.16r-7/5) A (a) Sketch a single-phase full-bridge inverter with an inductive load. (b) Sketch the waveforms of the output voltage, output current and input current of the inverter. Indicate the devices conducting during each interval. (c) Calculate the rms value of the fundamental-frequency component of the voltage.

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QUESTION SIX
A single-phase full-bridge inverter has a DC input voltage of 123 V, and supplies an inductive load with a
square-wave voltage at a frequency of 50 Hz. The output current is given by
i = 28.28 sin (314.16t-/5) A
(a) Sketch a single-phase full-bridge inverter with an inductive load.
(b) Sketch the waveforms of the output voltage, output current and input current of the inverter. Indicate
the devices conducting during each interval.
(c) Calculate the rms value of the fundamental-frequency component of the voltage.
(d) Calculate the output active power, apparent power and the power factor.
(e) Suggest how the output power factor of an inverter can be improved.
Transcribed Image Text:QUESTION SIX A single-phase full-bridge inverter has a DC input voltage of 123 V, and supplies an inductive load with a square-wave voltage at a frequency of 50 Hz. The output current is given by i = 28.28 sin (314.16t-/5) A (a) Sketch a single-phase full-bridge inverter with an inductive load. (b) Sketch the waveforms of the output voltage, output current and input current of the inverter. Indicate the devices conducting during each interval. (c) Calculate the rms value of the fundamental-frequency component of the voltage. (d) Calculate the output active power, apparent power and the power factor. (e) Suggest how the output power factor of an inverter can be improved.
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