摘要
针对太阳能光伏(PV)及燃料电池等领域电源需要较宽输入电压范围的需求,提出一种通用的具有较宽输入电压范围的软开关电流型DC/DC转换器。该转换器采用了固定频率混合调制设计,可以在所有工作条件下实现半导体器件的软开关工作,并采用电流馈电技术以便适用于低电压高电流的电源。相较于传统转换器,该转换器更为通用,能够实现零电压开关和零电流开关,并且能够在输入电压和负载变化出现较大变化时控制输出电压。实验结果显示,在20 V～60 V输入电压范围内且负载出现变化时,该转换器均表现出良好的性能。
For the requirements of a wide input voltage range in the areas such as solar photovoltaic（pv）and fuel cell,a general current mode soft switching DC/DC converter is proposed which has a wide input voltage range.The proposed converter uses a fixed frequency hybrid modulation design to achieve soft switching operation of the semiconductor device under all operating conditions,and uses current feeding technology for application in low voltage and high current power supply.Compared to conventional converters,the converter is more general.It can achieve zero-voltage switching（ZVS）and zero current switching（ZCS）.The converter can control the output voltage when the input voltage and the load change.Experimental results show that when in the 20 V～60 V input voltage range the load changes,the proposed converter has showed good performance.
出处
《电子器件》
CAS
北大核心
2017年第2期451-460,共10页
Chinese Journal of Electron Devices
基金
2016年度广西壮族自治区中青年教师基础能力提升项目(KY2016YB860)
2015年南宁学院校级科技项目(2015XJ17)
