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what is the difference between a Single phase semi-converter and a full converter?

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  • what is the difference between a Single phase semi-converter and a full converter?


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Answer #1 | 23/12 2013 07:09
Usually in a full converter you would use all the waveform (using a Wheatstone bridge principle. In semi conversion you just use half the waveform.In olden days, on a car alternator, one of the diodes would go - but you could cut one of the others off and just use 2. Not as efficient, but it still works (half wave rectification).
Answer #2 | 23/12 2013 07:41
Semi converter is nothing but a half converter... DON'T GET CONFUSED BY THE NAME because both full converter and half converter performs the same job... in half converters we don't have control over half of the devices.. meaning is that if we are using 4 SCR's then we will have control only over 2 SCR's... where as in Full converter we always have control over all 4SCR's
Answer #3 | 23/12 2013 07:50
Given your additional information, they both do the same thing.
Answer #4 | 23/12 2013 10:24
The full converter is able to pump back inductive load energy to the supply. There is also a difference in load voltage vs. trigger delay angle. With a resistive load, operation is the same as a circuit with thyristors on a common AC line. There are some other differences with a circuit that has a diode and a thyristor on each line with a common anode or common cathode connection between the two thyristors.

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