Circuit design of 15W multi-output wide range set-top box power supply

Summary:

The TinySwitch-III multi-output power supply can deliver 15W of output power. Typical applications include set-top boxes or DVD players, which all require the use of multiple output flyback power supplies.

design feature

  • Multiple output power supply
  • Excellent cross adjustment rate
  • Two output weighted regulators
  • Extremely energy efficient
  • Meets CEC/Energy Star 2008 requirements for working mode efficiency (requires 68.1%, up to 77%)
  • Low no-load power consumption (< 150 mW at 230 VAC AC input)
  • Conforms to CISPR-22/EN55022B for conductive EMI restrictions
  • Automatic restart function allows unlimited short-circuit output

Circuit diagram of a 15 W set-top box power supply using TinySwitch-III

See the uploading documentation for details (click to download)

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