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双开关反激变换器

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在双开关反激式拓扑中，为了克服传统反激式拓扑的局限性，增加了高侧功率MOSFET（位于输入电压轨和变压器之间）和缓冲二极管，因为总电压应力在两个晶体管之间平均分配。这在高压应用中特别有用，例如三相输入轨提供的辅助电源。双开关反激式拓扑还通过两个二极管将泄漏能量回收到输入端，从而在将功率MOSFET的最大电压应力箝位到输入电压的同时，提高效率并降低热应力，从而消除箝位损耗。

我们提供一系列支持准谐振模式的控制器、功率MOSFET、二极管和保护器件，还有一系列硬件和软件开发与评估工具，可帮助设计高效率的双晶体管反激式AC-DC转换器。

two switch flyback converter circuit diagram

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应用手册 (5 of 9)

Resource title
Latest update
AN1768 ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES 1.1
24 Mar 2020
24 Mar 2020
AN1768 ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES 1.1
AN2025 CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION 1.1
13 Sep 2018
13 Sep 2018
AN2025 CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION 1.1
AN604 Calculation of conduction losses in a power rectifier 3.2
24 Mar 2020
24 Mar 2020
AN604 Calculation of conduction losses in a power rectifier 3.2
AN4021 Calculation of reverse losses in a power diode 1.0
24 Mar 2020
24 Mar 2020
AN4021 Calculation of reverse losses in a power diode 1.0
AN1453 NEW FAMILY OF 150V POWER SCHOTTKY 1.1
24 Mar 2020
24 Mar 2020
AN1453 NEW FAMILY OF 150V POWER SCHOTTKY 1.1
AN5046 Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages 4.0
24 Mar 2020
24 Mar 2020
AN5046 Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages 4.0
AN5088 Rectifiers thermal management, handling and mounting recommendations 2.0
24 Mar 2020
24 Mar 2020
AN5088 Rectifiers thermal management, handling and mounting recommendations 2.0
AN443 SERIES OPERATION ON FAST RECTIFIERS 2.1
24 Mar 2020
24 Mar 2020
AN443 SERIES OPERATION ON FAST RECTIFIERS 2.1
AN869 Tj max limit of Schottky diodes 2.2
24 Mar 2020
24 Mar 2020
AN869 Tj max limit of Schottky diodes 2.2
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宣传册 (1)

Resource title
Latest update
ST Diodes Finder : the new app for Android and iOS 2.0
23 Mar 2020
23 Mar 2020
ST Diodes Finder : the new app for Android and iOS 2.0

All tools & software

    • 产品型号
      		状态
      		描述
      		类型
      		供应商

      ST Diode Finder

      批量生产

      用于安卓和iOS的二极管产品查找应用

      		 查找器App ST
      ST Diode Finder

      描述:

      用于安卓和iOS的二极管产品查找应用

      ST Voltage Regulator Finder

      批量生产

      用于智能手机和平板电脑的线性开关稳压器和电压参考应用

      		 查找器App ST
      ST Voltage Regulator Finder

      描述:

      用于智能手机和平板电脑的线性开关稳压器和电压参考应用

      STPOWER MOSFET Finder

      批量生产

      用于安卓和iOS的MOSFET产品查找应用

      		 查找器App ST
      STPOWER MOSFET Finder

      描述:

      用于安卓和iOS的MOSFET产品查找应用

转换器

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.