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Two sparkgaps have been used in the reference design DER717, one on top and another on the bottom on the same side of the board, both connecting the output terminals to the AC mains. Is it to have increased discharge current rating or to reduce the trace impedance? Could someone

Hi, Schematic Attached for your reference. We are using LNK3696 for generating bias power supply for AC-DC converter. AC-DC Converter has front end PFC followed by half-bridge converter. We started testing Halfbridge converter without PFC by giving external DC supply. Bias is working perfectly for input upto 350V, above 350V

Dear all, I want to obtained the controlled variable out put voltage using link switch LNK6776V in a single product. The controller variable output voltage are as follow, 9Vdc 12Vdc 15Vdc 19Vdc To obtained these, calculation of feedback resistance is obtained as bellow (See Fig.1), For 9 Vdc R10 =

Hi, I use the top261 to create a flyback power supply with an output voltage of 54V, for the purpose I have modified the feedback network which requires the use of the TL431, adding a 48V zener in series. For output current values ​​equal to 1-2A, the board works correctly

hlo, i just purchased a product having the part number of 2SC0106T2A1-12, the problem i am facing here is regarding to the pinout and connections. There is nothing present on internet that shows the pinouts of this part, so if you can help me out with this will be really

As per requirement need to generate SMPS design from 150VAC to 500VAC supply range for more than 60Watt. So, I have selected INN3649C-H606 device which cover the input range. PI Onine do not support this device so taken reference from other low voltage design. I have attached the schematic as

Hello. Please, where can I find the reliability data (FIT rate, MTTF) of INN3949CQ? Thank you very much.

Hello, I am a beginner in AC-DC converts design, Can we use innoswitch3-TN with out connecting SR pin to FET. If we are not using , can we leave floating or connect something ? My basic idea is to remove FET and use a diode for rectification to have additional

When the design calls for multiple transformers of different specs, what is the best approach to accommodate such a design using PI Expert? Suppose 5 or more transformers are used in a single PSU to provide the different outputs, could a single transformer with 5 secondaries replace them? What is

Hi, Why does AN57 include the open loop gain of the TL431 in the feedback equation, whereas AND8334 from onsemi does not include it? (AND8334 page 5)