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  Flyback Controller Simplifies Design of Low Input Voltage DC/DC Converters &mdash DN410
  PDF, 100 Kb, Archivo publicado: enero 8, 2007
  Extracto del documento

  advertisement Flyback Controller Simplifies Design of Low Input Voltage DC/DC
  Converters – Design Note 1016
  David Burgoon
  Introduction
  Small, high efficiency DC/DC converters are critical to
  the design of leading-edge electronics. Achieving high
  accuracy and efficiency traditionally means adding extra
  components, complexity, and size. Not so with the LT3837.
  This flyback controller serves 10W to 60W isolated applications with high performance, simplicity, small size,
  and a minimum component count. blanking yields a high performance loop that is easy to
  compensate. High-Efficiency Controller Capabilities
  The LTВ® 3837 operates from a 4.5V to 20V input, but the
  converter input range can be extended upwards by using
  a VCC regulator and/or a bias winding on the transformer.
  It also provides a synchronous rectifier output with
  adjustable timing to optimize efficiency and enhance
  cross-regulation in multiple-output supplies. 3.3V, 10A Converter Operates from a 9V to18V
  Source
  The circuit shown in Figure 1 is a flyback design for a 3.3V,
  10A output from a 9V to 18V input with a minimum of
  external components. The LT3837 samples the voltage on
  the primary winding during the flyback interval to provide
  superb regulation. Figure 2 shows ruler-flat regulation at …

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• Power Management > Switching Regulator > Flyback, Forward and Isolated Controllers

Otros nombres:

LT3837IFETRPBF, LT3837IFE TRPBF