Article | REF: E3964 V1

Choppers: how they work

Author: François BERNOT

Publication date: May 10, 2002

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2. Single-quadrant elevator chopper

Let's consider the one-quadrant step-down chopper, studied in paragraph 1 , and form its image through a mirror, as suggested in figure 7 .

We obtain a current input source and a voltage output source. We also need to swap the transistor and diode in order to maintain a controllable, energy-controlling input element....

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Single-quadrant elevator chopper