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Author Question: List three types of inverter circuits and explain the output waveform of each. What will be an ... (Read 60 times)

Melani1276

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on: Jul 26, 2018
List three types of inverter circuits and explain the output waveform of each.
 
  What will be an ideal response?

Question 2

A pulse-width modulation (PWM) inverter provides an output waveform that can have ___________
 
  a. Its voltage, current, and frequency varied.
  b. Only its voltage varied.
  c. Only its current and frequency varied.


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ky860224

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Reply #1 on: Jul 26, 2018
Answer to Question 1

Variable voltage inverter (VVI) A variable-voltage inverter (VVI) is basically a six-step,
single-phase or three-phase inverter. The need to vary the amount of voltage to the load became necessary when
these inverter circuits were used in AC variable-frequency motor drives and welding circuits.

Pulse-Width Modulation Inverters. Another method of providing variable-voltage and variable-frequency control for inverters is to use pulse-width modulation (PWM) control. This type of control uses transistors that are turned on and off at a variety of frequencies. This provides a unique waveform that makes multiple square-wave cycles that are turned on and off at specific times to give the overall appearance of a sine wave. The outline of the waveform actually looks very similar to the six-step inverter signal.

Current-Source Input (CSI) Inverters. The current-source input

Answer to Question 2

A


Melani1276

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Reply 2 on: Jul 26, 2018
Wow, this really help

nathang24

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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