单相桥式半控整流电路如附图1.2所示,已知变压器的副边电压为a点“+”、b点“-”时,T<sub>1</sub>和D<sub>2</sub>导通,当副边电压由零向负变化时,则( )。<img src='https://img2.soutiyun.com/shangxueba/ask/55296001-55299000/55296936/1f87cdb53cdf8748b13a6fc0eab6b609.gif' />

A.T<sub>1</sub>,D<sub>2</sub>导通 B.T<sub>1</sub>,D<sub>1</sub>导通 C.T<sub>2</sub>,D<sub>2</sub>导通 D.T<sub>2</sub>,D<sub>1</sub>导通

时间:2023-09-25 11:04:45

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