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I'm designing a SMPS and need a custom transformer. Therefore I contacted Feryster for them to construct a transformer. After some time I got the following feedback: "I prepared a transformer design based on the raw materials in stock. The design is extremely suboptimal. Firstly, flyback inverters are only built

The engine for the Component library has changed. I don't quite understand it. I added my own core in the Magnetics database (in that weird copying way) Fig.1. Then when I go into the project and try to select this core in the "Core selection" dialog, it is not there

Hello PI Support Team, I am using INN3164C in a project. Can you tell me the mosfet CD value for the transformer formulas? I couldn't find the CD or COSS values in the datasheet. Thanks, Arge

Hello. I'm Andrea and I deal with hardware development. I'm developing a new power supply and trying to achieve maximum heat efficiency. I have followed all the hardware building guidelines, in this case I need help on the start and end of the secondary winding. My prototype works perfectly when

Hi! I need to design a flat power supply (max 10 mm) 60W/24V. The maximum load will not be permanent. just for a few seconds. I started the design based on the RDR-928 with the idea of just modifying the transformer. But I gave up on the wound transformer due

Hello everyone, We have designed a power supply for USB charger with de IC INN3165C and we found some problems in burst test (ETF) at 1kV (2kV also) when we apply the test through AC input port. Once we apply the voltage burst the power supply starts to fail and

I am troubleshooting a power supply based on LNK304 in a sort of flyback configuration, unlike any of the typical circuits in the data sheet (please let me know if there are any such design notes etc). I measure 15.3V across the bypass capacitor, with only the capacitor connected between

I am not able to download InnoSwitch3-Pro Code Library and API for Microchip PIC16F18325. Access is denied. ( https://www.power.com/design-support/whitepapers/innoswitch3-pro-code-library-and-api-microchip-pic16f18325 ) What do I need to get permission to download it? Regards, Marco

Hi, I am reading the application notes of TinySwitch 3 family design guide (pdf is given in the attachment). In the TL431 feedback design section a table is given, where different feedback components can be selected for different output voltages, but no generalized formulae or procedure is given. Where can

I use INN3977CQ for DC-DC converter to design 12V 25W output, 120V-800V input, and reference design is 30 W Isolated Flyback Power Supply with StackFET Using InnoSwitchTM3-AQ INN3977CQ. And I find when the input voltage is 120V with the load 0,5W, the Vds for StackFET and Vsr (Voltage for SR