No video
DIY Digital Lab Power Supply: Part 2 - Ec-Projects
Рет қаралды 8,670
Күн бұрынThis is part 2 of the DIY digital lab power supply.
¤¤¤¤ -- SUPPORT Ec-Projects -- ¤¤¤¤
By using my Amazon affiliate links (No extra cost for you!)
Amazon US - amzn.to/1kNT3RM
Amazon UK - amzn.to/1OnZ2aX
Amazon DE - amzn.to/1Vt6zqg
By becoming a Patreon for as little as $1 per month
Patreon - / ecprojects
¤¤¤¤ ----------------------------------------- ¤¤¤¤
@superdau 7 жыл бұрын
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).
@EcProjects 7 жыл бұрын
Yeah I agree.. I like the STM32s very much! Their style of doing documentation sucks though, but when you get used to it, it's ok I guess :) However, seems like most people would like the Arduino :)
@adilmalik7066 7 жыл бұрын
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.
@EcProjects 7 жыл бұрын
It might.. But it's just a demonstration of the theory anyway. We will end up with a single power transistor in the end. There is also another fundamental issue with this circuit :)
@smartups1 7 жыл бұрын
Use 16*2 LCD or 16*4 LCD. Because it is very Common and use standard key pad .
@PriorUniform721 7 жыл бұрын
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.
@EcProjects 7 жыл бұрын
Not really thinking of going wireless, sorry :) A USB interface could be nice. don't know if I will make it though. Regarding the isolation, it is mostly a safety factor. If something goes wrong, the computer is protected. But also the other way round, if your computer sends out 240v on the USB for some reason, it does not fry your equipment. Another factor is noise pickup. If the USB cable is electrically connected to your circuit, it will act as an antenna and pick up noise :) By adding optical isolators, you solve both problems :)
@florianbaumgartner5238 7 жыл бұрын
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!
@adilmalik7066 7 жыл бұрын
regarding the oscillations: i dont see any loop compensation capacitors?
@mrjohhhnnnyyy5797 7 жыл бұрын
Yup! They do magic, my PS had poor load regulation - I set 12.0V and when I connect the load it sags to 10.8V. 180pF between inverting input and output of the error amplifier and now the voltage is solid like a rock :)
@AzCcc 7 жыл бұрын
Good idea to copy the title from part 1 for consistency. But isn't this too consistent ? ;)
@EcProjects 7 жыл бұрын
Hahaha, oops.. Yep, exactly what happened ;) Thanks for the comment :)
@jamest.5001 7 жыл бұрын
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
@EcProjects 7 жыл бұрын
I would say for a software generated square wave you can get at least 1 Mhz. PWM is 32 Khz as far as I remember.
@jamest.5001 7 жыл бұрын
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?
@EcProjects 7 жыл бұрын
If you plan to run it unattended, my best advise would be be to buy one ;) I know it's not what you are looking for, but I think it's simply too dangerous to make such stuff yourself if you are not 110% sure what you are doing, especially from a recipe found on the internet :) Sorry to disappoint you :)
@The_Traveling_Clown 7 жыл бұрын
By a "few dollar" you mean Denmark Krone??
@EcProjects 7 жыл бұрын
I usually speak in USD :) Nobody cares for DKK, sadly :) :) :)
@Zplizor 7 жыл бұрын
My boss does :P
@cccyberfamilydk 7 жыл бұрын
nice
@EcProjects 7 жыл бұрын
Thanks :)
@evgenpatotskiy177 7 жыл бұрын
you can do it yourself ,just go to inplix page and learn how to make it.
@thebeststooge 7 жыл бұрын
Do you still use your k40 style Chinese laser machine?
@EcProjects 7 жыл бұрын
Yeah! Don't use it every day, but nice to have when you need it :)
@thebeststooge 7 жыл бұрын
EcProjects Still holding up? They lose power, so it is said, just sitting there (the co2 tubes).
@EcProjects 7 жыл бұрын
Yes, it's still fine :) I haven't noticed any significant drop in power. Might have dropped a few % without me noticing it. Hard to tell :D
@fog450 7 жыл бұрын
Sir can i use a 2n3055 transistor ? which modification i have to make?
@KiwiNom 7 жыл бұрын
Yes you can, no mod needed, just don't overdrive it aka remember your output wattage.
@EcProjects 7 жыл бұрын
Yes, should work fine!
@grozaadrian4134 7 жыл бұрын
i love the videos man !
@EcProjects 7 жыл бұрын
thank you :)
@cccyberfamilydk 7 жыл бұрын
Hi Mads. I send you a PM on Facebook. I don't know if you are monitoring it. :)
@EcProjects 7 жыл бұрын
Ohh, I might have forgotten to check that :)
@ut0phya 7 жыл бұрын
arduino please :)
DroneBot Workshop
Рет қаралды 1 МЛН