| 摘要 |
The converter includes a control circuit, a power stage 6 supplied directly with AC at the frequency of the electrical energy source, a means 7 of comparing the level of oscillation obtained with respect to a setpoint value 8, a logic unit 11 ensuring the selection of mains phases as a function of the instantaneous potential difference between phases so as to set the average level of oscillations with respect to the requirement of the application. <IMAGE>
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