DC-DC converter, electronic equipment and method for reducing power consumption

DC-DC converter, electronic equipment and method for reducing power consumption

  • CN 101,222,178 A
  • Filed: 01/11/2008
  • Published: 07/16/2008
  • Est. Priority Date: 01/11/2007
  • Status: Active Application
First Claim
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1. one kind is carried out conversion to input voltage, provides the current-control type DC-DC converter of load current to load, it is characterized in that having:

  • Main switch, it passes through described input voltage in conduction period, stops described input voltage between the off period;

    Inductive reactance, it is at the out-of-date generation induced voltage of described load current flow;

    Feedback circuit, it detects described induced voltage, and output and the reference voltage result after comparing;

    Bypass circuit, it detours the electric current that flows into described inductive reactance;

    AndControl circuit, its output according to described feedback circuit determines the terminal point during a certain between described conduction period or described off period, control the action of described main switch, and control the action of described bypass circuit so that described load current is detoured.

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