| 摘要 |
A chopper is specified having a series circuit arrangement of electronic switches, an auxiliary DC voltage supply (19) being connected to a series circuit arrangement constructed from electronic switches (2, 3) so that, even if the electronic switches (2, 3) in the series circuit arrangement have unequal switching speeds, no excess voltage is applied to the electronic switches (2, 3) and any energy losses resulting from the excess voltages are prevented. <IMAGE>
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