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Registered Member #3595
Joined: Mon Jan 10 2011, 04:46AM
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Posts: 26
magnet18 wrote ...
JKowalski wrote ... However, since you seem to define "uses" as being also "what I can also drive with the same circuit" from reading your first post... H-bridges are very multi-purpose devices. Especially considering the hardiness of the bridge required for Tesla coil use... I'm sure many people here could answer the question "what could I do with a high-frequency high-power H-bridge?"
Induction heater also comes to mind
So if I wanted I could build a circuit to power both an induction heater and a tesla coil, just plug and play?
Well, to make it somewhat "plug and play" you'd have to spend a little extra time and money designing that feature into it. However, the concept of both circuits are the same - driving a resonant circuit with high power, high frequency. The high frequency tesla-coil kind of H-bridge is a way to convert wall voltage into just that.
Induction heaters have their own quirks which will set it apart from a tesla coil and require you to do quite a bit of fiddling to be able to transition. What I meant was not really "plug n play" but more along the lines of having completed an expensive well cooled reliable H-bridge circuit by itself, which can be driven in different ways to do some particular function. As most of us know the physical bridge (MOSFETS, IGBTs, heatsink, reservoir caps, bypass caps, GDT's, etc.) is usually the most expensive part of these projects. The driving circuitry is relatively cheap, and building different driver boards for different applications won't hurt your budget much.
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Uses for a Tesla Coil?
