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Dear All,
Can you recommend a cheaper, trusted distributor for electronic components than digikey? (May be a Chinese or Malaysian one )
I need to purchase ICs, caps and Inductors and resistors with large quantities.
Thanks
Ok mtwieg but exactly i need to know the way that he calculated this specs of the core, winding , inductance and turns ratio in details Can you tell me how? As I need to use Specific PI IC to get a range of powers with different currents and voltages.
Dear All,
I'm going to develop LED Driver using tapped buck topology i want to know how to select a proper inductor for it?
I'm now in need to develop this specs:
Input 220
Output 4.95 W, 9 V, 550 mA
Ic Control LinkSwitchTM-PL LNK457DG
Also If I need to change the output power from the same...
Dear All,
I'm trying to design a low cost drivers to sell them in my country and after doing a market research about the lowest way i found that Power Integration have a good design examples.
but after calculating the BOM only for a 20W LED driver it exceed 5$ although the similar wattage...
Dear All
I have a problem in the LCR meter as it gives different inductance and resistances for every time i test an inductor also sometimes it gives a values with minus although i made an OC and SC trim test.
Can any one help me please?
Dear All,
I'm trying to use a transformer to step down 220V to 12V AC then pass the output to a rectifier to be an input to a DC-Dc converter.
So I'm looking for a high efficiency transformer larger than 85%.
I bought one from Digi-key (Part-Num.: 14A-10R-24) it's manufactured in china after...
Hello Guys
There is many application notes in the internet just like PI Design Examples for LED Drivers . it contains a custom design for the selected transformer. So if i need to do this design with my self how to get the same transformer or similar with an easy way ????
Thank you.
Dear all,
I have a sample of an LED Driver and needs to open it without breaking any part.
attached is the covering picture of the product . It seemed that the cover is a heat sink itself.
I just need a way to open it safely
Thank you,
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