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Many appliances and equipment require the availability of an auxiliary power source (SMPS) that works separately from the main power supply to support, for instance, stand-by operation. Power ratings can vary from a few to a few tens of watts for these auxiliary supplies, which can be either isolated or non-isolated. To ensure good performance, engineers must choose a power topology – including fly-back or quasi-resonant – that best meets the efficiency, size, safety and cost requirements.

ST offers a wide portfolio of highly-integrated offline converters for applications up to 20 W with an extremely low total stand-by consumption – down to less than 4 mW – and breakdown voltages as high as 900 V. In addition to PWM switching controllers, power MOSFETs and diodes, we offer an extensive set of evaluation and development tools as well as reference designs to help engineers develop high-efficiency and compact auxiliary power supply solutions.

絶縁型補助電源(20~75W)
絶縁型補助電源(20~75W)
最大20Wまでの電力範囲では、1トランジスタ・フライバック、フォワード...
続きを読む
絶縁型補助電源(最大20W)
絶縁型補助電源(最大20W)
最大20Wまでの電力範囲では、1トランジスタ・フライバック、フォワード...
続きを読む
非絶縁型補助電源(最大20W)
非絶縁型補助電源(最大20W)
多くのアプリケーションでは、2次回路のリファレンスが1次回路と同じ...
続きを読む

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Publications and Collaterals

    • Description バージョン サイズ アクション
      Diodes and rectifiers selection guide 2.0
      815.09 KB
      PDF

      Diodes and rectifiers selection guide

    • Description バージョン サイズ アクション
      パワー・マネージメントガイド 2017 09.2018
      2.64 MB
      PDF
      VIPerPlus - Your SMPS design deserves a Plus 05.2018
      1,002 KB
      PDF

      パワー・マネージメントガイド 2017

      VIPerPlus - Your SMPS design deserves a Plus