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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

Hi, I am designing a 5volt 3.5amp SMPS using PI Expert online. I think in the final design no over voltage protection(OVP) circuitry found. How can I include over voltage protection in the final design. Design is added in the attachment.

Hi All, Is there any simple design for 5V/40W supply with low no-load consumption?

Sincerely, dear professors. I want to know the cause of bursting of TNY280 in switching power supply circuit. According to the tests, this should not have happened. The circuit is related to the control of a water heater package. The TNY80 exploded as soon as the power was plugged in.

hi i'm using lnk304 and make output voltage 5V thank to application note an-37 and 1.44W, 12V, 120mAbuck converter reference circuit in linkswitch-tn family datasheet, i understand designing voltage which i want. but I'm not sure how i desing output current like 5V 50mA, 5V 100mA, 5V 150mA May I

DPA series is specified for 75V DC input maximum. From the block diagram, only L pin seems to be influenced by this input. Can we somehow manage the Lpin so that the input voltage range can be extended to 85V DC.