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As shown in Figure 6-5, the control of the synchronous rectifier is derived from the DC/DC converter
main switches’ signals. To avoid short circuiting the transformer when voltage is established, the
synchronous rectifier must turn off when the switch in the lag leg turns on. Also, to avoid the current
flows from the synchronous rectifier’s body diode, it must turn on when the lead leg switches on. But to
avoid a short circuit, there must be a delay time between the rectifier’s turn on and the lead leg’s turn off.
上面的圖以及后面的描述怎么理解,如果時序不對,變壓器短路是怎么造成的?