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DC-DC CONVERTERS OPERABLE IN A DISCONTINUOUS SWITCHING MODE

  • US 20130314062A1
  • Filed: 07/29/2013
  • Published: 11/28/2013
  • Est. Priority Date: 07/22/2009
  • Status: Active Grant
First Claim
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1. DC-DC converter circuitry comprising:

  • a first node and an output node for connection to an inductor;

    a high side switch operably connected between a high side supply input node and the first node;

    a low side switch operably connected between a low side supply input node and the first node; and

    switch control circuitry being;

    configured to control the turn-on of said high side switch based on a comparison of at least a first signal indicative of the current flow in the inductor with a second signal indicative of a difference between the voltage at the output node and a target voltage; and

    operable to prevent turning the high side switch on in a cycle if the period between turning the high side switch on and turning the high side switch off would be less than a first time period.

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