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PS ZVS FB转换器

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In a phase-shifting, zero voltage switching full-bridge converter, the two legs of the full-bridge are switched with two square waves whose phase shift is modulated by the converter’s control loop and the resulting square wave is fed into the primary of the transforms that provides primary-secondary isolation and voltage scaling. Parasitic resonance between the capacitance of the transistors and the transformer’s leakage inductance is exploited to ensure a soft turn-on – ideally zero voltage switching (ZVS) - for all four switches in the primary. To also extend the ZVS range at light loads, a resonance inductor is introduced in series with the primary winding of the transformer. ZVS helps reduce switching losses and stress in addition to removing the need for primary snubbers. It also enables higher switching frequencies which helps in the design of converters with higher efficiency and power density, making this converter well suited for high-power (> 600 W), high-frequency applications. ST offers a range of advanced digital controllers, rectifiers and power MOSFETs with improved reverse recovery time of their intrinsic diode. Our 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 enable developers to fully exploit the benefits of full-bridge phase-shift ZVS converters. Read more

Advantages of ZVS

ZVS helps reduce switching losses and stress in addition to removing the need for primary snubbers. It also enables higher switching frequencies which helps in the design of converters with higher efficiency and power density, making this converter well suited for high-power (> 600 W), high-frequency applications.

Our products and solutions

ST offers a range of advanced digital controllers, rectifiers and power MOSFETs with improved reverse recovery time of their intrinsic diode. Our 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 enable developers to fully exploit the benefits of full-bridge phase-shift ZVS converters.

All tools & software

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      ST MCU Finder

      批量生产

      用于移动设备和台式电脑的STM32和STM8产品查找工具

      STM32实用软件工具 ST
      ST MCU Finder

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      用于移动设备和台式电脑的STM32和STM8产品查找工具

All Hardware Evaluation Tools

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      STEVAL-ISA172V2

      批量生产

      2 kW全数字式交流-直流电源(D-SMPS)评估板

      STM32F334C8 电源和功率转换器解决方案评估板 ST
      STEVAL-ISA172V2
      批量生产

      2 kW全数字式交流-直流电源(D-SMPS)评估板