onsemi delivers industrial power supply solutions leveraging advanced topologies like Totem-Pole PFC and LLC resonant converters, combined with SiC and GaN technologies for superior efficiency and compact design.
onsemi offers a range of tested solutions to design compact and efficient industrial Switched-Mode Power Supply (SMPS) solutions from 5W to 3kW and beyond. The combination of innovative totem-pole technology with multi-mode PFC control of EliteSiC MOSFETs, Cascode JFETs and GaN HEMTs enables a compact PFC stage with excellent efficiency from low to high load conditions.
The current mode high speed resonant LLC controllers working with EliteSiC MOSFETs, Cascode JFETs and GaN HEMTs enable compact conversion of the output of the PFC stage into the required output voltage, supported by the secondary side synchronous rectification controllers driving our best-in-class medium voltage MOSFETs, powering up to several kWs rating loads. The multi-mode quasi-resonant flyback controllers support designs for lower rating loads up to 200W.
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.
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EliteSiC MOSFETs and SiC CJFETs are optimized for fast-switching high-efficiency topologies: Totem-pole PFC and LLC.
Explore this comprehensive system solution guide featuring advanced SiC and GaN technologies, high-efficiency AC-DC & DC-DC conversion, and USB Power Delivery (PD).
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