| 摘要 |
An AC/DC two stage converter includes a non-isolated switch-mode regulated AC/DC voltage step-down first stage converter comprising an AC input and a first DC output. The AC voltage applied to the AC input is rectified and switch-mode regulated to a first DC voltage at the first DC output. The first DC voltage is lower than a peak voltage of the AC voltage applied to the AC input. An isolated switch-mode regulated DC/DC second stage converter includes a second DC input coupled to the first DC output and at least one second DC output, wherein the first DC voltage is switch-mode regulated to a second DC voltage at a second DC output.
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