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DC/DC converter with multiple operating modes

  • US 6,157,182 A
  • Filed: 04/30/1999
  • Issued: 12/05/2000
  • Est. Priority Date: 04/10/1995
  • Status: Expired due to Fees
First Claim
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1. A method for controlling an active operating mode of a DC/DC converter, comprising:

  • defining a first operating mode and a second operating mode of the DC/DC converter, wherein the first operating mode is characterized by a first switching loss and the second operating mode is characterized by a second switching loss, wherein the first switching loss is less than the second switching loss;

    monitoring a coil current, wherein the coil current flows through a predefined coil of the DC/DC converter; and

    switching the active operating mode of the DC/DC converter between the first operating mode and the second operating mode in response to the coil current reaching a first predetermined threshold,wherein the coil current is monitored by using a current sense resistor and a hysteresis comparator.

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