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In a two-transistor forward or asymmetrical half bridge forward topology, the two transistors of the primary are switched on and power is transferred to the secondary winding of the transformer and then to the output capacitor and the load. When switched off, the diodes in the primary clamp the peak voltages seen by the transistors at the input voltage and thus reduce stress at the same time.

The two-transistor forward topology is often used in server and telecom switch mode power supplies (SMPS) as a main stage DC-DC converter and in arc-welding equipment.

To help developers fully exploit the benefits of two-transistors forward converters, ST offers a range of power MOSFETs and rectifiers; high-voltage and galvanically isolated gate drivers; primary PWM and synchronous rectification controllers; as well as high-performance STM32 microcontrollers – with an extended range of dedicated peripherals including high-resolution PWM timers and high-speed ADCs – together with our hardware and software evaluation and development tools as well as reference designs.

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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
      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
      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
      AN443
      SERIES OPERATION ON FAST RECTIFIERS
      2.1
      202.48 KB
      PDF
      AN869
      Tj max limit of Schottky diodes
      2.2
      60.9 KB
      PDF
      AN4638
      Welding machines: V and HB series IGBTs on two-switch forward converters
      1.0
      724.64 KB
      PDF
      AN1768

      ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES

      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

      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

      AN443

      SERIES OPERATION ON FAST RECTIFIERS

      AN869

      Tj max limit of Schottky diodes

      AN4638

      Welding machines: V and HB series IGBTs on two-switch forward converters

演示和培训资料

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      Primary side regulation controllers portfolio
      1.1 MB
      PDF

      Primary side regulation controllers portfolio

出版刊物和宣传资料

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      800-1050V MDmesh™ K5 ST’s first super-junction VHV MOSFET Series 1.0
      516.44 KB
      PDF
      Field-Effect Rectifier Diodes Advantageously replace Schottky (60V and 100V) 1.0
      975.08 KB
      PDF

      800-1050V MDmesh™ K5 ST’s first super-junction VHV MOSFET Series

      Field-Effect Rectifier Diodes Advantageously replace Schottky (60V and 100V)

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]

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A This option is required and must be a number.

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