5036| 11
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直流電如何像交流電一樣變壓?請教 |
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點(diǎn)評
先變交流、再變壓、最后整直流。聽起麻煩,其實(shí)用戶拿到的都是DC-DC模塊,接上就用,體積小重量輕,安裝比變壓器還方便。效率一般能在0.8以上。
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