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    • 2. 发明授权
    • Synchronous rectifier gate drive timing to compensate for transformer leakage inductance
    • 同步整流栅驱动定时补偿变压器漏电感
    • US08358522B2
    • 2013-01-22
    • US12836933
    • 2010-07-15
    • Paul W. CoteusAndrew Ferencz
    • Paul W. CoteusAndrew Ferencz
    • H02M5/42
    • H02M3/33592H02M2001/0048Y02B70/1475Y02B70/1491
    • An apparatus for providing synchronous rectifier gate drive timing is described. The apparatus includes circuitry to receive a first signal. The apparatus also includes circuitry to generate a second signal by modifying the first signal to delay a transition from high to low for a non-zero overlap duration. An output to apply an inverse of the first signal as a gate drive timing of at least a first transistor and to apply the second signal as a gate drive timing of at least a second transistor, where the first transistor is a part of a primary side of a full-bridge synchronous rectifier and the second transistor is a part of a secondary side of the full-bridge synchronous rectifier is also included. The second signal and the inverse of the first signal are high during the overlap duration. Methods and program storage devices are also disclosed.
    • 描述了一种用于提供同步整流栅驱动定时的装置。 该装置包括用于接收第一信号的电路。 该装置还包括通过修改第一信号以在非零重叠持续时间内将从高转变为低的过渡来产生第二信号的电路。 用于将第一信号的反相作为至少第一晶体管的栅极驱动定时的输出,并施加第二信号作为至少第二晶体管的栅极驱动定时,其中第一晶体管是初级侧的一部分 的全桥同步整流器,而第二晶体管也是全桥同步整流二次侧的一部分。 第二信号和第一信号的反相在重叠期间是高的。 还公开了方法和程序存储装置。