高效开关模式电源(SMPS)
安森美利用图腾柱PFC和LLC谐振转换器等先进拓扑结构,结合碳化硅(SiC)和氮化镓(GaN)技术,提供工业电源解决方案,实现卓越的效率和紧凑的设计。我们的仿真工具、评估板和齐全的控制器、栅极驱动器产品阵容,共同支持高性能的电源转换,用于工业自动化和能源技术设施应用。
安森美提供一系列经过测试的解决方案,用于设计5W-3kW及更高功率的紧凑高效的工业开关模式电源 (SMPS) 解决方案。图腾柱技术与EliteSiC MOSFET、Cascode JFET和GaN HEMT等多模式PFC控制的创新结合,在从低到高各种负载条件下都能实现效率出色的紧凑型PFC级。
与EliteSiC MOSFET、Cascode JFET和GaN HEMT搭配使用的电流模式高速谐振LLC控制器,可将PFC级输出转换为所需的输出电压,搭配次级侧同步整流控制器,驱动我们业界领先的中压MOSFET,为高达数千瓦的额定负载供电。多模式准谐振反激式控制器支持200W以内的较低负载设计。
Our SiC MOSFETs are designed to be fast and rugged and include system benefits from high efficiency to reduced system size and cost. MOSFETs are metal–oxide–semiconductor field-effect transistors with insulated gates. These silicon carbide MOSFETs have a higher blocking voltage and higher thermal conductivity than silicon MOSFETs, despite having similar design elements. SiC power devices also have a lower state resistance and 10 times the breakdown strength of regular silicon. In general, Systems with SiC MOSFETs have better performance and increased efficiency when compared to MOSFETs made with silicon material.
There are many advantages to choosing SiC MOSFETs over silicon MOSFETs, such as higher switching frequencies. High-temperature development is also not a concern when using SiC MOSFET modules because these devices can operate efficiently even in high heat. Additionally, with SiC MOSFETs, you benefit from a more compact product size because all components (inductors, filters, etc.) are smaller.
Our Silicon Carbide diodes use a completely new technology that provides superior switching performance and higher reliability to silicon.
Many people have been using silicon diodes in their machinery, but there is a new option for those looking for better efficiency. SiC diodes are diodes that allow for higher switching performance. They have greater power density and overall increased efficiency. Their reduced energy loss also helps to lower system costs.
Compared to silicon diodes, silicon carbide diodes are more efficient and resistant to high temperatures. They work at high frequencies and higher voltages. Since SiC diodes have faster recovery times than silicon diodes, they're ideal for any kind of current that requires a quick transition from blocking to conducting stages. They also don't get as hot as silicon, allowing them to be used in higher-temperature applications with more efficiency.
EliteSiC碳化硅MOSFET和碳化硅SiC CJFET(共源共栅JFET)优化用于快速开关、高效率拓扑:图腾柱PFC和LLC。
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