I appreciate the time you spend explaining these concepts. A course like this has been in my vision for a while now. Finding good videos on these principles can be discouraging for an inspiring circuit designer. All I can say is keep with it, tear stuff apart, and learn how it works. Everything you encounter that isn’t a cost to you. Collect the parts until you know how they work. Then keep collecting, salvaging, experimenting, and tinkering. Keep notes on every subject, part, or protocol you encounter. Repeat Repeat Repeat. And you will do fine. I remember telling myself, “I don’t understand today, but this time next year I’ll know plenty. Thank you for inspiring the next generation of electrical engineers. We sure are going to need all the hands and minds we can get. God Bless.
Thank you Leo! Just started watching this series and happy to see the third come out, I can already tell this is light years ahead of any other electronics walk through I've ever watched. Thanks again for sharing your knowledge!
Electronics and communication engineer here and I'm amazed by your teaching capabilities and your deep understanding. Keep up the good work. Very glad I found your channel!
Thanks so much for this series, Leo. When I'm teaching intro electronics to my students, I'm definitely going to incorporate these videos. Much appreciated.
These are fantastic videos. You've been able to explain some things (impedance and load; conductance and the reciprocal in parallel resistor math) that other intro courses either couldn't or just didn't explain. You've helped me a great deal as I try to learn from home. I'm looking forward to more! Thank you.
Loving this series! More please. At this point I'd love to see you integrating simple bread board examples, taking meter readings as you go. This series is perfect for someone like me who has electronic experience, but mostly with microprocessors.
Thanks Leo for continuing your lessons I'm knew to electronics and Looking forward to your video,s must admit I'll probably have to watch this one a few times .
First of all thank you for these videos! I am just starting out to learn about electronics and found that around 10:00 this video got a bit overwhelming and i had to rewatch that part. Maybe you could visualize on an example what that drooping voltage would look like. similarily the part about the switching power supply 11:30 ramped up the electronics term density pretty fast.
Good introduction about summing voltages, leads into Kirchoff's voltage laws. Internal resistance/impedance is often overlooked in why power transfer fails to power a circuit. Keep up the good work Leo.
I haven't seen this stuff since undergrad! I like your steady approach to teaching the concepts, and I especially enjoy the real-time experiments. I love your teaching and learning philosophy, and I enjoy your content. Looking forward to the next episode!
Thank you so much. I have been watching other videos that are at a college level and couldn't wrap my head around the practical application of the math. You made it make sense. Now I am encouraged to keep watching and learning. Keep the videos coming.
After years of messing with electronics I never thought to hook batteries up with some of them reversed to measure the voltages. I honestly would have guessed you'd measure zero volts at the ends or just make a lot of heat. Good stuff.
Good stuff Leo. I’d never really thought about battery internal impedance before, but now it makes perfect sense: the current is doing the most ‘work’ in the highest-impedance bit of the circuit, so a D-cell will be more efficient with a high-impedance (ie low-current) load.
Very nice videos. Really hope they help your channel grow. This does not matter, but just a comment - Heavy Duty Batteries are different than Alkaline Batteries.
In next lection we should discuss about difference between power ground and digital ground. Sometimes we can see even change of polarity on digital lines if grounds are combined not correctly
Leo Please do a video explaining Impedance. What it is and how to understand it. I have struggled with this and have not found a clear explanation of what it is and how it compares or contrasts to resistance.
Leo I am a Refrigeration Mechanic from Calgary Canada. I appreciate all the great tips. Do you have courses that I could take to expand my knowledge? I thot I checked your sight and saw nothing. Please advise. Great Work Brother!
Very informative and enjoyable to watch. Good length and pace. What is a good/valid way to measure the internal impedance of a single cell or a battery?
Someone more knowledgeable might want to weigh in here but I'd say the best way to find out is to check the datasheet. A cursory google search tells me that correctly measuring internal battery impedance requires a specific set of tools.
Most of your comments are from teachers . Typical that teachers take for granted how to teach the basics. As a retired construction professional. No way I could teach from a blackboard, it does not work. They need to watch real examples.
