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Our product, a controlled intermittent half bridge inverter, uses LNK625DG-TL as an auxiliary power supply. The switching power supply uses the main circuit 310VDC for power supply, and the power output unit 17VDC supplies power to the control circuit and drive circuit. The switching power supply uses a typical application

Hi, I have offered to do a HiperPFS PFC for a company at 400W, 100-265VAC. (followed by an LLC) 37Vout. Its for a consumer beauty product But they believe a totem pole PFC stage will be a smaller and more efficient solution. They want a really small solution as the

Hello, I can't get Flyback circuit samples for TN2 series via PI Expert. When will the version with circuit diagrams of this series come? Regards.

Hello, i have a project with a LCS7265C witch should be able to handle 135W output power @24V this works fine. We wound a transformer for the power supply with the two chamber integrated resonance inductance. At this time, we have a problem with the no load condition and we

Hello, I'd like to know if is possible and if is useful to use bias as second output? My design requer 5V/200ma Isolated and a 15V/200mA Non-Isolated (To drive IGBT). I try to simulate that in PiExpert but it was hard to converge to a solution. I appreciate a help

As this is a more detailed technical question, I did not want to bother the sales team with this: I am interested in using the mentioned GDU for an application with a 3,3 kV-SiC MOSFET. In the brochure, the GDU is labelled as SiC MOSFET ready. My question is: can

Hi, I have a 15W universal input design with INN3164C. In the past, I have seen some chips (like UCC28742 from TI, please see attached image for same design) use a ceramic capacitor for the bias winding output. To put things in perspective, PI Expert Web has specified Panasonic, EEH-ZA1V220R

使用TOP266EG设计一开关电源，输入220V，输出24V，完全按照PI expert软件的输出设计。目前现象是空载时，TOP266EG的D引脚一值维持大约320V电压，大约每隔1秒出现斩波波形，又立刻消失，输出电压大约为20V。如果带负载，电压立刻降低为3、4V。现上传原理图，请问是哪里的问题。谢谢。 此外，电路中的D1使用的FR307，与PI Expert软件的设计不一致。不接任何负载，输出悬空，TOP266EG依然会较热。

Could you please clarify what core material was used for this design? The core shape is clear but I couldn't see a part number for the core. Thanks!

How can I specify a split primary in PI Expert Web? PI Expert Desktop allowed this in the left panel under winding construction options. Thanks in advance. Best