I guess I have a couple of those but didn't know it. I bought a cheap induction coil heater in a kit and it fried itself in minutes. It was so cheap I just ordered another rather than figure out how to fix the first one. I still haven't soldered it together but the components are large and far apart so it's almost impossible for the builder to screw it up. Now that I understand how they work I may even take a peek at the fried unit again. I do miss the old open dumps we used to have; I used to get flyback transformers out of old TV sets at the dump along with many other components. Those old console TV'S and stereos were a goldmine for parts
My grandmother had a Curtis Mathis console stereo. It was about 6 feet wide, 3 feet deep and 3 feet high. That thing was a gold mine! After she passed in 2000, I took all sorts of parts and components. The console itself was used as a bar in my old house.
@@learnelectronics The coolest one I ever seen was a Philco radio bar made in 1934. I found one with the radio missing for my father who was born in 1934. It took a couple of years but I finally found a radio to fit it. I wish I had one for myself but the prices are now ten times what I paid for the one I originally found.
Oh I know! I tried to buy an old tabletop tube radio that reminded me of one my great grandfather had in his bedroom. I figured they'd be priced like a tube amp...say $300-1000. Oh heck no, cheapest were almost a thousand.
Awesome presentation. My only question is with "L" in the frequency formula.....Is that the choke inductance, or the total transformer inductance, or total of both?
GREAT VIDEO! When I design things, I always want 'long-lasting' reliability for applications in actual products. one thing that always bothered me in the ZVS circuit was the fact that it depends on one FET turning on FIRST! But, as you know, in repeated use, there is going to come that instance in history where they BOTH turn on at startup!! I am trying to figure out a simple way to decrease these odds. Maybe slightly different FETS, or somewhat different valued resistors for one side of the circuit, or a slightly differing speed speed component on one half??? Maybe something that restarts at turn-on if that hi-current short occurs........ It's this a thing that gives me that annoying 'feeling'...know what I mean?
Hey brother just found your videos. I love them as I’ve been really getting back into my electronic hobbies since getting out of the navy for 14 years. I see you have a sticker, were you also in? Well if so, thanks for your videos shipmate! 😂
Hi. I have this model too, and I am using it to try and power a transformer too. I tried to use a 12V 6A DC lab power supply from my physics department, however it only outputted about 0.06 Volts on the 3 outputs. Can I know what is the voltage and current input that you are using?
At around mid way you mentioned that 12V can be used. I will be testing again tomorrow witha 12V 10A DC power supply. I am wondering whether a 12V 20A DC supply works too, or even a 24V 20A DC. thanks for the reply :)
2 pi because if you do a FFT a sine wave is a circle. The diameter of that circle is proportional to the frequency.I try and avoid the deep dark calculus to keep folks from running away too quickly 🧐
@learnelectronics oh, absolutely. My method is to give people a bit of levity to break up the seriousness of the calculations. Give them another reason to stick around. I've seen you and a number of other "teachers" use that method as well. It's a mark of a good instructor who wants to make things fun for the student, as we all know what happens when they become bored. My 2 favorite pi? Pumpkin, to start (home made, of course) and Graham Cracker pie. This one I've not had in years as the 2 places I used to be able to get it have either had fires or gone out of business. It's like a Vanilla milk custard with Graham cracker crust and and Graham cracker crumbles on top. Now I'm hungry for pi(e).... 😁😁
Get solderstick at 20% OFF with discount code "LE20" at www.solderstick.com/sale
I guess I have a couple of those but didn't know it. I bought a cheap induction coil heater in a kit and it fried itself in minutes.
It was so cheap I just ordered another rather than figure out how to fix the first one.
I still haven't soldered it together but the components are large and far apart so it's almost impossible for the builder to screw it up.
Now that I understand how they work I may even take a peek at the fried unit again.
I do miss the old open dumps we used to have; I used to get flyback transformers out of old TV sets at the dump along with many other components. Those old console TV'S and stereos were a goldmine for parts
My grandmother had a Curtis Mathis console stereo. It was about 6 feet wide, 3 feet deep and 3 feet high. That thing was a gold mine! After she passed in 2000, I took all sorts of parts and components. The console itself was used as a bar in my old house.
@@learnelectronics The coolest one I ever seen was a Philco radio bar made in 1934. I found one with the radio missing for my father who was born in 1934. It took a couple of years but I finally found a radio to fit it. I wish I had one for myself but the prices are now ten times what I paid for the one I originally found.
Oh I know! I tried to buy an old tabletop tube radio that reminded me of one my great grandfather had in his bedroom. I figured they'd be priced like a tube amp...say $300-1000. Oh heck no, cheapest were almost a thousand.
Awesome presentation. My only question is with "L" in the frequency formula.....Is that the choke inductance, or the total transformer inductance, or total of both?
I feel like keep the two primary coils together would cause them to melt and stick together
I have had personal experience with the high voltage from a TV fly back, it's no fun so be carefull!
Yes, me too. Not fun. The reaction hurt worse as my hand slammed into the cabinet.
GREAT VIDEO!
When I design things, I always want 'long-lasting' reliability for applications in actual products. one thing that always bothered me in the ZVS circuit was the fact that it depends on one FET turning on FIRST! But, as you know, in repeated use, there is going to come that instance in history where they BOTH turn on at startup!! I am trying to figure out a simple way to decrease these odds.
Maybe slightly different FETS, or somewhat different valued resistors for one side of the circuit, or a slightly differing speed speed component on one half??? Maybe something that restarts at turn-on if that hi-current short occurs........
It's this a thing that gives me that annoying 'feeling'...know what I mean?
What is the ferquency of the zvs in the video?
I have one .i tested it with oscilloscope, and the frequency jumps between 50 to 100khz
Hey brother just found your videos. I love them as I’ve been really getting back into my electronic hobbies since getting out of the navy for 14 years. I see you have a sticker, were you also in? Well if so, thanks for your videos shipmate! 😂
I served from 1988-1993. Separated as an STS2.
Go Navy!
Careful there Paul.
☮️ brother.
Hi. I have this model too, and I am using it to try and power a transformer too. I tried to use a 12V 6A DC lab power supply from my physics department, however it only outputted about 0.06 Volts on the 3 outputs.
Can I know what is the voltage and current input that you are using?
At around mid way you mentioned that 12V can be used. I will be testing again tomorrow witha 12V 10A DC power supply. I am wondering whether a 12V 20A DC supply works too, or even a 24V 20A DC. thanks for the reply :)
Nevermind i just reached the part where you mentioned 12V 5A, hmm I am not sure what went wrong then. Any recommendation?
Switching power supplies can be subject to a great deal of EMF. Try a transformer supply or automotive battery
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good warning rather use a chicken stick then become a stiff
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Why 2 pi? Because 2 pi R better than 1!
2 pi because if you do a FFT a sine wave is a circle. The diameter of that circle is proportional to the frequency.I try and avoid the deep dark calculus to keep folks from running away too quickly 🧐
@learnelectronics oh, absolutely. My method is to give people a bit of levity to break up the seriousness of the calculations. Give them another reason to stick around. I've seen you and a number of other "teachers" use that method as well. It's a mark of a good instructor who wants to make things fun for the student, as we all know what happens when they become bored.
My 2 favorite pi? Pumpkin, to start (home made, of course) and Graham Cracker pie. This one I've not had in years as the 2 places I used to be able to get it have either had fires or gone out of business. It's like a Vanilla milk custard with Graham cracker crust and and Graham cracker crumbles on top.
Now I'm hungry for pi(e).... 😁😁
Pecan pie is my favorite!