公开(公告)号：US20040130307A1

公开(公告)日：2004-07-08

申请号：US10725764

申请日：2003-12-02

Applicant: Intersil Americas Inc. State of Incorporation: Delaware

Inventor： Noel Dequina ,  Donald R. Preslar ,  Paul K. Sferrazza

IPC: G05F001/40

CPC classification number: H02M1/38 ,  H02M3/1588 ,  Y02B70/1466

Abstract: A control circuit for a switch mode DC-DC converter contains an arrangement of monitored LGATE, UGATE and PHASE node condition threshold detectors, outputs of which are processed in accordance with a switching control operator to ensure that each of an upper FET (UFET) and a lower FET (LFET) is completely turned off before the other FET begins conduction, thereby maintaining a dead time that exhibits no shoot-through current and is independent of the type of switching FET.

Abstract translation: 用于开关模式DC-DC转换器的控制电路包含监视的LGATE，UGATE和PHASE节点状态阈值检测器的布置，其输出根据切换控制算子进行处理，以确保上FET（UFET）和 在另一个FET开始导通之前，下部FET（LFET）完全关闭，从而保持不存在直通电流的死区时间，并且不依赖于开关FET的类型。