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谁能帮忙推荐一个方案呢？ 如果要用到变压器，能把变压器的具体参数给出来就好了。
你好， 请参照以文档,很快就能做出你要求的电源。
http://www.ti.com.cn/cn/lit/ug/snvu107/snvu107.pdf
