| 摘要 |
<p>A controller (100) for a full bridge power converter (110) having controllable switches (QA - QD) includes (1) a signal generator circuit (120) designed to drive the controllable switches in a phase-shifted mode and (2) a switching network (130), coupled to the signal generator circuit, adapted to enable the signal generator circuit to operate the converter in an alternative one of (2a) the phase-shifted mode, wherein the controllable switches in each of first (QA, QB) and second (QC, QD) legs of the converter are complementarily switched, the signal generator circuit capable of adjusting a relative phase between the first and second legs and (2b) a normal mode, wherein diagonal pairs (QA,QD; QB, QC) of the controllable switches are switched substantially simultaneously and at a substantially full duty cycle.</p> |
