PI Forums

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

Hi, we have a TOP255GN flyback SMPS design for 100-265vac and 24vout, 24wout. It is failing our 4kv/2s hipot test. This is the hipot tester that we use... https://national-instrument-hire.co.uk/megger-ft4-flash-tester The flyback is totally surrounded in an earthed metal enclosure. Many of the components are near to the enclosure walls. Also

Dear Sir, We have designed 150W power supply (12V, 12.5A) based on the document shared by our PI FAE. I can not share the document as it is mentioned confidential on that, May be I can share document number if required. It is based on TOPSwitchTM-JX TOP271EG. We need this

Hi. My first PI Expert flyback converter design recommends a PQ26/20-3F3 core. All the listed cores appear to be 3F3 which seems to be a Ferroxcube material. The PQ26/20-3F3 core doesn't seem to be available anywhere in small quantities. Would a TDK N97 PQ25/20 core be an acceptable substitute? I'm

I have designed an SMPS with INN2904K, with the following specifications : Vin: 65- 265 VAC Freq: 50 Hz Vout : 24 VDC ; 750 mA - Isolated With a load of 500mA, the IC heats upto 85°C in an ambient temperature of 25-26°C. Apart from increasing the heat sinking

Hi, I need to develop an isolated 5 W SMPS to be connected Line-to-Line on 3P 400 V main. It means the rectified input voltage span is 450-650 V. I can't find any reference design or discussion about. Any help? Thanks in advance.

Dear All, I am making a DC-DC Converter for auxiliary power supply application. The input is 40-58V. The outputs are 18V,0.3A and 12V,1.5A. The initial design I got through PI designer, Based on available components, I made few changes. Can you please review the layout if its acceptable both functionally

Hallo, I am currently using the TNY280P, and the auxiliary voltage is around 12V at no load. Under load, the auxiliary voltage increases to up to 38 V. I would like to use zhe Overvoltage Protection. What value should the Zener diode have? Thanks

I wanted to design 10W DCDC converter using DPA switch DPA424GN with 3 outputs that accepts input voltage 8 to 32 VDC . However DPA accepts input voltage 16-32V DC. Shall I extend the input voltage range as 8 to 32V by adding pre boost converter stage. boost converter with

https://www.power.com/sites/default/files/documents/innoswitch3-ce_family_datasheet.pdf Looking for the proposed layout, I have a very similar PSU structure ( CM choke-rectifier-bulk cap-InnoSwitch-Ycap ), with no AC-OUT spark gaps. No need more than 8kV ESD testing. -what is a recommended size of spark gaps across the common-mode choke? -are this spark gaps is simply reducing the

We applied to an internationally and well known accredited laboratory for LVD certification of our LED driver designed with INN3162C. Although our product meets SELV specifications in terms of insulation, it is considered "no-insulation" by lab. The reason is given to be "inductive coupling" rather than "optical coupling". The article