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In the development of power electronic devices, more and more switch mode power supplies (SMPS) are used in various fields. SMPS transfer power from a DC or AC source to DC loads. And they have many advantages, such as high conversion efficiency, low energy loss, and lighter weight than linear power supplies. However, switching current in SMPS can cause electrical noise problems and it may have a poor power factor. To solve these problems, gallium-nitride (GaN) based Totem-Pole power factor correction (PFC) has been used. In order to further improve the overall efficiency, new controllers in PFC are necessary to replace the traditional controller. The new controllers enable the whole system to achieve a higher switching frequency, optimize the bandwidth of the controller, as well as increase the system’s efficiency and response speed.
Guibin Li;Mengting Tang
Solantro Semiconductor Corp
Engineering - other
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