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Hi ProbirD,This is done with the software control. It can measure various inputs and determine what the current should be to maintain constant current, constant resistance or constant power.
Hi Principle,Thanks for your kind words.I am glad it helped you so much. That was its intention.Thanks again.Lee
Hi,It senses the input voltage and software limits the current setting so it doesn't exceed 50W.
Hi Vishal,Yes, it most certainly is possible, this design is very different to one with a pot. I would suggest having a look at Dave's video linked above.ThanksLee
Hi GabrielS119,The stability loop is the most complex part of the whole design. Changing the transistor / MOSFET will change the capacitance of the circuit and therefore the stability.There are many great instructional guides on driving a capacitive load with an op amp. Have a good look at those but dont look for a simple answer because there isn't one.Lee
Hi YoungsooL,Thanks for your kind words.Yes, the LCD will work on 4 data pins. I originally set it up for 8 in case I needed the refresh speed.I am not sure if it will fun on Nano I'm sorry. Things to consider are:- programing the chip will need to implement an external USB interface- Ensure you have enough pinnouts- Ensure the SPI is similar in frequency and remember to dedicate enough pins to the SPI.- Plus a few other things I'm sure.Hope that helps.ThanksLee
That looks fantastic! Thanks for the updateLee
Hi deki,You sure can but unfortunately the Leonardo part is only about 25% of the design. Most of the design is surface mount I am sorry. It's not as hard as it seems.Lee
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