Love your passion for electronics, it's really contagious!

I appreciate all the knowledge you're putting into these videos, I really like your channel and tutorials, It's weird that such great content don't get that much followers, I hope the channel will grow more and I hope you'll continue to share this awesome content. Thanks a lot.

@EEforEveryone

4 жыл бұрын

Hello HK Electronics! We're just doing what we can over here! Educational content doesn't always fly off the shelves, but just being here, commenting, and participating in the community helps a lot! Thank you so much for being here, and I'm glad you feel like we're doing well! Of course, I'm always looking for ways to get better, and I plan to! Cheers, and thanks for reaching out!

Great idea for a series.

@EEforEveryone

4 жыл бұрын

Thank you Han, I'm glad you're enjoying the series! We're about to kick off an electronic load series, building something real out of these concepts. I'm pretty excited!!! Thanks for watching, and thank you for leaving this comment!

You are my savior.

@EEforEveryone

3 жыл бұрын

Aha, I'm no savior, but happy that you found our video useful! Cheers!

Looking forward to an electronic load project. I have enjoyed your take on introducing/developing A PID control system via opamps. I have a couple NOS TSD4M350V's on the way hopefully. Who knows when they'll turn up though =P (Cheapest high power FET I could find with a DC rating curve?) I also bought some socketable multi phase converters for high current testing. I think a mix of analog and digital would be nice. Definitely want some fast acting protection circuits. A current sink is a good place to start, but some way to do an ohmic load or constant power would be nice. I recall there are some analog feedback circutis that approximate these? Depends on accuracy? I've never built them. Analog multipliers are hard and/or expensive IMO =P. But then the alternative is digital control systems and that becomes a whole other discussion? Auto ranging would be nice. I think the issue there is switching softly between them. I guess the economics would mean the best option is low side switching with another FET? High current relays, or reed relays for speed, if you want to be able to handle higher voltages get very expensive? Depends if you're talking sub 5-10A down to milliamps, or you want one unit that does millamps to tens of amps?

@EEforEveryone

4 жыл бұрын

Hello Normally Open, Oh boy, I'm starting to fall behind on KZread comments now. :) That's a new level! Even if I'm a little late, thank you for reaching out, and thank you for leaving this awesome comment. I tried to find a datasheet for those parts... are they super obsolete? Didn't find anything from the usual suspects. Agreed on the mix of analog and digital, analog for fault handling (maximum speed) but some digital features will be good too. Like you said, behaving like a resistor, voltage source, etc, will be awesome! And perhaps we can find a way that reduced transient response or refresh time becomes an acceptable compromise when operating in the more advanced operating modes? The nice thing about autoranging loads is they can all be in parallel, assuming the same DC voltage withstand exists across all ranges... even if they all can't pass current at that voltage! I don't want to repeat too many thoughts from my other comment, so I'll leave it at that for now. Can't wait to see you in the comments as we kick off the design series! Thank you again for watching!

@normallyopen1190

4 жыл бұрын

​@@EEforEveryone It's some ancient "SGS Thomson" panel mount bolt/tab connector . The datasheet refers to an IRFP350 for the avalanche rating, so it could be the same thing in a better package? the "hope it arrives" is that I was browsing aliexpress sellers of panel mount power transistors, looking for cheap ones that had DC ratings in their datasheets. We are in agreement with the need to not have disconnects if they all have the same voltage rating. My thoughts jumped to something more akin to an "80A,"75V" rated linear mosfet coupled with a "15A, 500V" linear mosfet, rather than having to spend 5-6x on the transistors. An interesting optimisation problem, but probably too difficult =P

c1, c2 = 10nF

The results that you are executing in transient are not the same as iam executing them why?

@EEforEveryone

2 жыл бұрын

Interesting... I'd expect spice to work about the same everywhere. A couple thoughts: varying step size in transient simulation can make slightly different numbers appear. I didn't restrict step size, so that's possible if we're a little off If we're way off- using a different opamp can have a big impact on performance! Other than that .. it's hard to say, If you can find our email on the about page (kzread.infoabout) I'll gladly send over my sim file!

Whats up with your doggo? :(

@EEforEveryone

4 жыл бұрын

Hi Paul, Thank you for reaching out! She (the doggo) will be okay, just in heat at the moment. She's coming out very well and back to normal.