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2.6. Bridge

The bridge topology, which is represented in fig. 11, operates in a manner similar to the previous one, although in this case with only one primary winding. In this case, to obtain the symmetric waveform in the transformer, four transistors in a bridge setup are used. The transistors are on in couples: Q1 together with Q3 and Q2 together with Q4. The operation of the secondary is as in the push-pull converter.