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Hi, I am trying to implement the reference design RDR 838 which gives multiple output voltages. How will be able to trigger these different voltages at the output?

Hi Experts, Do you have SIMPLIS Modle for Tinyswitch-4？I am working on a project and need this model for simulation verification. Could you please provide the model? Thanks！

I have design based on der-960 with INN4377. In load below ~4A(20v) power supply work stable without any noise. But after some threshold when I try rich 5A(20v) it jump to higher frequency instantly and I can see SOA protection(I assume it) on main switching. It's create a lot of

Hi Experts, We are using LNK623DG for our 5V, 900mA (4.5W) SMPS. We are using the following designs for last couple of years and shipped more than 70K units so far without problem so we believe no problem with design (schematic attached). However in recent production lot we are facing

Hi Colleagues. As seen in the DER-717, PI Expert and other sources, the ferrite core can be used as shielding, by connecting the wire to high voltage ground. Some cores have this option (like RM cores with), some didnt. And now the question. How to connect the ferrite core with

We designed a power supply using Innoswitch 3 EP family INN3670C. Output specs are 24V 3.5A. we are facing issues in the design like some of the boards primary pulse are coming bunch pulses and we tried making trial boards and some boards only the IC blasted. How can we

We design a smps having 4.5W ,Input DC 19.2-373DC.For that we used a Transformer EE20 core size. When the Input is low voltage 19.2 ,Frequency is 132kHZ and working is CCM mode. When the Input is high voltage 373 ,Frequency is 40kHZ and working is DCM mode for design of

Hi, Can TNY287D be powered from a 12v rail rather than a bias coil? (ie via a resistor from a 12v rail) We will do output overvoltage via opto pulling down EN/UV If powered from a bias rail, how will it know what cap is connected to BP/M pin, and

Hello, I have created a circuit board using the LYT5228D Driver in a Buck configuration, leaning on the DER-515 design, though adapted for Buck rather than Buck-Boost. The specs are the following: Input Voltage: 230VAC Output Voltage: 36V Output current 320mA This is driving a string of 12 LEDs, in

Hi, I am currently working on the safty analysis of a device, that includes the part TOP250Y. I need the reliability information on that part, but was unable to find it on your website. I would like to ask for the FIT value of this device on 55 °C. Thank

Refer image 1 I want to know converter state below Vuv. I have attached image 1, contains Vuv=102.8Vdc. Below Vuv which is set by V pin in TOP267KG-TL, What is converter state? Converter is in Auto-restart mode or it is completely off. Refer image 2 We have input 19.2 -

Hello, I am recently designing a circuit with INN3165C chip. I downloaded the Simplis model of your chip, but I can't look inside the chip. Is it convenient to provide the Simplis model inside this series of chips? regards nujiy

Dear All , I am looking for SMPS design isolated with 300V AC as input and 12V 10A and 30V 1.5 dual output , Please suggest best device for this application Regards Aziz

Dear Sir/Madam, LNK3207(High-Side Buck – Direct Feedback, 5V output) will be used in my new product development and now we are considering the light-load power. I tested that even I did not connect any load at 5V output sides, the input is still dissipated ~0.09W. May I know how i

Hi, We are using the LNK302DN link switch for AC to DC conversion in our application. We have referred the datasheet for design calculation in order to convert the 85-265VAC to a 5VDC, but there is only a application circuit which produces 12VDC. Kindly provide us the design calculation so

I need to design an SMPS with INN3694C, with the following specifications : Vin: 65- 265 VAC Freq: 50 Hz Vout : 24 VDC ; 750 mA - Isolated Transformer core : E20/10/6 The PI expert file link is below: https://piexpertonline.power.com/piexpert/design/select?share=829d4e050a376b588b64f29caf932a252ce4344939ad649251c046336ddf62a7 The reference schematic has been attached below. I wish

Dear Support Team I am currently working on designing an Flyback SMPS using the InnoSwitch3-CP to provide 19V and 12V outputs. The 12V output will power a Peltier device, specifically the TEC1-12703, which has a rated voltage of 12V, a maximum current of 3A, and a power consumption of 27W

Hi, We are doing a 24Vout offline flyback 1A. We wish to use Inno3-CE. We have a 4 layer PCB. So on page 15 of this... https://www.power.com/sites/default/files/documents/innoswitch3-ce_family_datasheet.pdf ...should we have our internal copper layers running under the transformer, so as to shield the Innoswitch from the transformer? As you know

Hi, I need to design a flyback SMPS with the following requirement: Input voltage range: 290 - 800 VDC Isolate Output: 24V Output power : 50W. I was trying to use your excellent PI Expert Online but when I introduce my inputs requirements, a pop-ups a warning windows saying that

Dear All, I have designed a power supply based on DPA424 with input 38 to 58V and output of 12V,1.5A and 18V,0.3A. I want to test the hardware prototype developed. What is the general test procedure and at what load I should keep for initial test (say 10% etc). What