Not able to find EFD transformer core in PI Expert Suit
Hi we are smart home product based company from Gujarat, INDIA. we need to design Full proof standard SMPS design with smallest possible size (Hight wise too). so basically we are trying to look at EFD cores of SMPS transformers, we have got one design based on EFD20 "DER-107", but it will be good if we can use EFD15 core as its smaller compare to EFD20.
But the issue is "PI Expert Suit" do not shows EFD cores in core selection menu. even "DER-107" transformer EFD20 is not showing in PI Expert Suit, please help us find EFD cores in PI Expert Suit, or please share any reference design using EFD15 Core, below are the configurations,
input : universal AC (100-230 Vac)
output : 5V DC - 1A or 2A (if possible 2A then best, if not then 1A will also fine)
transformer core ; EFD15
Adapter type design (there will be no Air Ventilation)
this design will be turned on 24/7 so please suggest robust and stubborn design which includes.
- Overvoltage Protection
- over current protection
- Short Circuit Protection
- thermal shutdown option
- input transient filter
- standard output ripple and other noise compression
here please note that all the parameters are not compulsory , please share most relevant design which uses EFD15 as Transformer core, with transformer design details + complete circuit like "DER-107".
thanks and regards.
JagrutKumar Vaghela
コメント
Hi, Thanks for the detailed response.
is there any DER, EDR, or any reference designs from PI which gives 5W or 7.5W or 10W DC output with universal AC input 230V AC and mainly with any EFD core.
Thanks for the help and support.
Other than the one you already have - DER-107, currently I could not find more. EFD is not very popular choice because of the reasons explained above.
Best Regards,
Thanks for the response, presently we are going with EFD15 Core and 5W (230V input and 5V 1A output) design using "INN3162C-H101-TL" and using PI expert design.
we found that this chip "INN3162C-H101-TL" is new and not in stock for approx 3-4 months on Mouser. can you please let me know weather i can purchase from any other of your dealer but faster.
Apart from this we are also interested in "Non-Isolated type" DC supply (230v AC to 5V DC) and approximate 2.5W-5W (Without any transformer). i have found one "RDR-721" other than this if there is any designs available please let me know.
Hi JagrutKumar,
Thank you for considering PI product for your design.
The cores EFD15, 20 are in the database. They just need to be enabled for use.
To do so please follow the steps below.
1. Open the components Library “Add Edit Transformer Database”
2. Find the EFD15 in “Core Type” column
3. Press “Add”
4. Change the name in the “Core Type” field to something different. For example, “EFD15_”.
5. Adjust any of the core parameters if needed, and press “OK”
6. Save the dataset you are created when prompted.
When you create a new design the core EFD15_ will be available in the list of cores.
However, EFD15 is a bit on a low side for 10W designs. This relates to the core cross-sectional area and especially for winding area. So, it may be a challenge to accommodate the windings and the safety measures (if required).
There is also a core EFD17 you may want to try. Currently, it is not in the Data Base but you can add it exactly the same way as explained above with the new name and the new parameters. Then, it will be available to use for the designs.
Best Regards