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.
我们的产品和解决方案
为了帮助开发人员充分利用双晶体管正激转换器的优点，ST提供一系列功率MOSFET和整流器；高压和电流隔离栅极驱动器；初级侧PWM和同步整流控制器；以及高性能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 — 还有我们的硬件和软件评估与开发工具、以及参考设计。
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