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在移相全桥零电压开关转换器中,全桥的两个支路用两个方波进行切换,方波的相移由转换器的控制回路进行调制,产生的方波被输入到变压器(提供初级/次级隔离和电压缩放)的初级端。利用晶体管的电容和变压器的漏电感之间的寄生谐振,可确保初级电路中所有四个开关实现软开关 — 理想的零电压开关(ZVS)。为了扩大ZVS在轻负载下的作用范围,将一个谐振电感和变压器的初级绕组串联。

ZVS有助于减少开关损耗和压力,而且不需要初级缓冲电路。它还支持更高的开关频率,有助于设计具有更高效率和功率密度的转换器,使这种转换器非常适合大功率(> 600 W)高频应用。

ST提供一系列高级数字控制器、整流器和功率MOSFET(改善了其本征二极管的反向恢复时间)。我们的高性能STM32微控制器(配备扩展的专用外设,包括高分辨率PWM计时器和高速ADC),加上我们的硬件和软件评估与开发工具(包括参考设计),有助于开发人员充分利用移相全桥ZVS转换器的优点。

00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      AN1768
      ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES
      1.1
      46.82 KB
      PDF
      AN4656
      Bootloading procedure for STLUX™ and STNRG™ digital controllers
      3.1
      588.34 KB
      PDF
      AN2025
      CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION
      1.1
      147.59 KB
      PDF
      AN604
      Calculation of conduction losses in a power rectifier
      3.2
      137.74 KB
      PDF
      AN4021
      Calculation of reverse losses in a power diode
      1.0
      120.47 KB
      PDF
      AN5028
      Calculation of turn-off power losses generated by a ultrafast diode
      1.0
      1.68 MB
      PDF
      AN4381
      Current sharing in parallel diodes
      1.0
      449.12 KB
      PDF
      AN2626
      MOSFET body diode recovery mechanism in a phase-shifted ZVS full bridge DC/DC converter
      1.4
      446.79 KB
      PDF
      AN1453
      NEW FAMILY OF 150V POWER SCHOTTKY
      1.1
      131.48 KB
      PDF
      AN5046
      Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages
      4.0
      4.82 MB
      PDF
      AN5088
      Rectifiers thermal management, handling and mounting recommendations
      2.0
      2.32 MB
      PDF
      AN533
      SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting
      3.6
      217.19 KB
      PDF
      AN443
      SERIES OPERATION ON FAST RECTIFIERS
      2.1
      202.48 KB
      PDF
      AN4856
      STEVAL-ISA172V2: 2 kW fully digital AC - DC power supply (D-SMPS) evaluation board
      1.0
      4.25 MB
      PDF
      AN1542
      THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION
      1.1
      57.47 KB
      PDF
      AN869
      Tj max limit of Schottky diodes
      2.2
      60.9 KB
      PDF
      AN1768

      ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES

      AN4656

      Bootloading procedure for STLUX™ and STNRG™ digital controllers

      AN2025

      CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION

      AN604

      Calculation of conduction losses in a power rectifier

      AN4021

      Calculation of reverse losses in a power diode

      AN5028

      Calculation of turn-off power losses generated by a ultrafast diode

      AN4381

      Current sharing in parallel diodes

      AN2626

      MOSFET body diode recovery mechanism in a phase-shifted ZVS full bridge DC/DC converter

      AN1453

      NEW FAMILY OF 150V POWER SCHOTTKY

      AN5046

      Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages

      AN5088

      Rectifiers thermal management, handling and mounting recommendations

      AN533

      SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting

      AN443

      SERIES OPERATION ON FAST RECTIFIERS

      AN4856

      STEVAL-ISA172V2: 2 kW fully digital AC - DC power supply (D-SMPS) evaluation board

      AN1542

      THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION

      AN869

      Tj max limit of Schottky diodes

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      1200 V SiC diodes, 2 to 40 a in surface-mount and through-hole packages 1.0
      580.17 KB
      PDF
      ST Diodes Finder : the new app for Android and iOS 2.0
      1.46 MB
      PDF

      1200 V SiC diodes, 2 to 40 a in surface-mount and through-hole packages

      ST Diodes Finder : the new app for Android and iOS

eDesignSuite

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.