Hysteresis feedback controlled synchronous buck converter-based power supply is designed and developed for biasing the transistors of Solid State RF Power Amplifier (SSPA). Design verification is done using PSIM software. The RF power requirement of SSPA varies from a few watts to 12 kW depending on RF application. It requires the power supply to have constant voltage and variable current. A comparative study of fixed frequency pulse width modulated (PWM) power converters and variable frequency hysteresis control power converter has been done. The advantages and challenges involved with hysteresis control are discussed. To operate SSPA, a 30–65 V, 320 A power supply is needed but to validate the power supply topology along with the controller, a prototype power supply developed with the same voltage rating and lower current rating of 10 AModular design is selected and operated with two parallel modules. The steady state and dynamic response are analyzed. Experimental and simulation results are in good agreement.

基于迟滞反馈控制的同步降压转换器电源是为偏置固态射频功率放大器 (SSPA) 的晶体管而设计和开发的。设计验证是使用 PSIM 软件完成的。SSPA 的射频功率要求从几瓦到 12 千瓦不等，具体取决于射频应用。它要求电源具有恒定的电压和可变的电流。对固定频率脉宽调制（PWM）功率变换器和变频迟滞控制功率变换器进行了比较研究。讨论了滞后控制所涉及的优势和挑战。要运行 SSPA，需要一个 30–65 V、320 A 的电源，但为了验证电源拓扑以及控制器，选择具有相同额定电压和较低额定电流 10 A 的模块化设计开发的原型电源，并使用两个并联模块运行。分析了稳态和动态响应。实验和仿真结果非常吻合。