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做的是移相全桥电路，在移相时UCC27424就开始发烫，最高达到100度，控制芯片用的是UCC28950，用来驱动变压器的
亲；得注意IC的功耗和散热。一般；变压器耗电比较大且存在驱动缺陷，不建议用IC直接变压器。建议试一下；不带变压器时的温升情况。
