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PWM-based DC-DC converter with assured dead time control exhibiting no shoot-through current and independent of type of fet used

  • US 20040130307A1
  • Filed: 12/02/2003
  • Published: 07/08/2004
  • Est. Priority Date: 12/31/2002
  • Status: Active Grant
First Claim
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1. A control circuit for a switch mode DC-DC converter comprising 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.

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