DIY Digital Lab Power Supply: Part 2 - Ec-Projects

This is part 2 of the DIY digital lab power supply.
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[superdau]

Maybe way too late since you might already have decided: but I really like the STM32 series of micros. The AVRs on Arduinos feel so limited hardware wise in comparison. But I still got a lot to learn about the STM32 and a project like this would really help understand more of it. It is true that it is not as easy to start out with as an Arduino is, because even with the core libraries provided (CMSIS, standard peripheral library) you are much more down to the metal and need to know the workings of the STM32. Arduino hides all that from you (and, due to the very limited features of the AVR, is much simpler to begin with).

[PriorUniform]

What about using an esp8266 or esp32 board? You could do data logging and it would be isolated from the PC. Which reminds me, what isolation issues might you have with a USB interface? It would be nice to have PC control and logging.

[adilmalik]

I have a feeling this whole voltage loop followed by current loop will result in bad overall transient response. During current limiting, your voltage loop opamp will most likely saturate leading to over/undershoot once the current limit is lifted.

[jamest.]

what is the highest frequency own a arduino or teensy can generate? I was told around 400Hz. is this true? that is what I was planning to use for my inverter. also I have heard paralleling MOSFETs can be tricky sometimes. how would you do this. I will need to switch between 150&350 amps @24v. your input on this project would be great. thanks

[jamest.]

I just came across your channel. while researching how to build a inverter. I need to build a power inverter to power my home. can you give any advice?

[florianbaumgartner]

Why you don't use a Teensy 3.2? It's cheaper and more powerful then the Arduino Due and you can program it with the Arduino IDE with all the Arduino compatible libraries!

[thebeststooge]

Do you still use your k40 style Chinese laser machine?

[adilmalik]

regarding the oscillations: i dont see any loop compensation capacitors?

[smartups]

Use 16*2 LCD or 16*4 LCD. Because it is very Common and use standard key pad .

[fog]

Sir can i use a 2n3055 transistor ? which modification i have to make?

[AzCcc]

Good idea to copy the title from part 1 for consistency. But isn't this too consistent ? ;)

[The_Traveling_Clown]

By a "few dollar" you mean Denmark Krone??

[evgenpatotskiy]

you can do it yourself, just go to inplix page and learn how to make it.

[cccyberfamilydk]

Hi Mads. I send you a PM on Facebook. I don't know if you are monitoring it. :)