Is my Induction Heater Tutorial website up to par? Share your thoughts!

AI Thread Summary
The induction heater tutorial website has undergone recent changes, focusing on theory, scope waveforms, and circuit design for high-power units. Users express appreciation for the tutorial's clarity and design, noting its capability to exceed 10-12kW and levitate workpieces. Discussions arise about handling high power levels, with inquiries regarding the use of parallel IGBTs versus single units. One user shares their experience with older systems utilizing parallel SCRs, highlighting their longevity and reliability. Overall, the feedback indicates a positive reception of the website while encouraging further technical discussions.
imsmooth
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I just finished some changes to my website http://inductionheatertutorial.com

I was hoping that if anyone had some comments such as criticism, improvements, subtopics they would like to see, or if they are happy with its current form. The site goes into some theory. This is followed with some scope waveforms, and finally with a description of the circuit design. The unit can easily go over 10-12kw, and can boil copper and steel while levitating the workpiece.
 
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Wow this looks nice!
 
Great tutorial,... I am working with up to 200KW units daily, but this little system is cute :smile:
 
When working with such high power levels, how do you handle the switching? Do you run several parallel IGBTs, or are there single units for handling such power?
 
The units I am working with are pretty old, from around 1985, there are two towers of 5 parallel SCR's. Interesting setup and amazingly it still works after more than 20 years of daily use!
 
Hey guys. I have a question related to electricity and alternating current. Say an alien fictional society developed electricity, and settled on a standard like 73V AC current at 46 Hz. How would appliances be designed, and what impact would the lower frequency and voltage have on transformers, wiring, TVs, computers, LEDs, motors, and heating, assuming the laws of physics and technology are the same as on Earth?
While I was rolling out a shielded cable, a though came to my mind - what happens to the current flow in the cable if there came a short between the wire and the shield in both ends of the cable? For simplicity, lets assume a 1-wire copper wire wrapped in an aluminum shield. The wire and the shield has the same cross section area. There are insulating material between them, and in both ends there is a short between them. My first thought, the total resistance of the cable would be reduced...
I used to be an HVAC technician. One time I had a service call in which there was no power to the thermostat. The thermostat did not have power because the fuse in the air handler was blown. The fuse in the air handler was blown because there was a low voltage short. The rubber coating on one of the thermostat wires was chewed off by a rodent. The exposed metal in the thermostat wire was touching the metal cabinet of the air handler. This was a low voltage short. This low voltage...

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