行波管放大器高效率BOOST电路设计OA
Design of High-Efficiency BOOST Circuit for Traveling Wave Tube Amplifiers
为满足星载行波管放大器(TWTA)对供电系统高效率、高稳定性及小型化的需求,研制了一款300 W预稳BOOST变换器.该变换器在传统BOOST电路基础上增设辅助谐振支路,通过主辅回路协同实现主金属-氧化物-半导体场效应晶体管(MOSFET)零电压软开关(ZVS),结合低损耗器件选型,将转换效率从传统硬开关电路的92％提升至94％以上(最高97％).PSpice仿真与实验验证表明,该变换器在输入电压35～45 V(适配星载太阳能电池母线)、输出电压50 V、负载75～300 W 工况下,输出电压稳定,结构紧凑轻便,可满足星载设备要求,为后级隔离DC-DC变换器提供稳定输入,提升星载TWTA整机效率与可靠性.
To meet the requirements of high efficiency,high stability,and miniaturization for the power supply system of spaceborne traveling wave tube amplifiers(TWTAs),a 300W pre-regulated BOOST converter is devel-oped.Based on the traditional BOOST circuit,an auxiliary resonant branch is added to the converter.Through the coordination of the main and auxiliary loops,zero-voltage switching(ZVS)of the main MOSFET is achieved.Combined with the selection of low-loss components,the conversion efficiency is increased from 92％of the tradi-tional hard-switching circuit to over 94％(a maximum of 97％).The PSpice simulation and experimental tests in-dicate that under an input voltage range of 35～45 V(adapting to the bus voltage of spaceborne solar cells),an out-put voltage of 50 V,and a load range of 75～300 W,the converter exhibits stable output voltage with compact structure and light weight,which can meet the requirements of spaceborne equipment.The converter provides a sta-ble input for subsequent isolated DC-DC converters and improves the overall efficiency and reliability of space-borne TWTAs.
陈志强;史中正;甄洁;韩金刚;刘宇阳
北京真空电子技术研究所,北京 100015中国人民解放军93160部队第七代表室,北京 100086北京真空电子技术研究所,北京 100015北京真空电子技术研究所,北京 100015北京真空电子技术研究所,北京 100015
信息技术与安全科学
预稳BOOST变换器行波管放大器电子功率调节器零电压软开关高效率损耗抑制
Pre-regulated BOOST converterTraveling wave tube amplifierElectronic power conditionerZe-ro-voltage switchingHigh efficiencyLoss suppression
《真空电子技术》 2026 (3)
45-49,5
评论