![]() ![]() To meet the EMI standard, an EMI filter is added between the topology and AC source to attenuate the noise coming from the high-speed switching behaviors of the BTP-PFC. The optimal design of these tradeoffs in the BTP-PFC with GaN is evaluated in this article.Ī typical circuit of a single-phase BTP-PFC is shown in Figure 1. Additionally, the power density increase also affects efficiency, which results in a trade-off between these two quality indices. To address this objective, an analysis of an EMI filter design procedure for a Constant Current Mode Bridgeless Totem Pole Power Factor Correction circuit (CCM BTP-PFC) is presented with a result of a positive influence on the power density for high switching frequency. However, at a certain high frequency, attention to EMI performance of the converter is required to meet EMC regulations such as the EN55022 Class B standard. It is clear that a power supply unit (PSU) running at high switching frequency with GaN HEMT devices has high power density and high efficiency. ![]() Guidelines for selecting switching frequency and filter design are described to facilitate ease of GaN use. GaN-based power transistors provide increased power density and efficiency in power electronics. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |