General > General Technical Chat

The Art of Electronics, practically no info about thyristors & triacs

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NiHaoMike:

--- Quote from: T3sl4co1l on September 08, 2021, 11:19:38 pm ---In their defense, they aren't very useful/important anymore.  Still quite effective for AC control, but it's largely just on-off -- get a pre-made module (SSR), follow the appnotes, whatever.  Reactive loads + snubbers are a more nuanced thing.

--- End quote ---
IGBTs and MOSFETs are also on/off, they're just able to switch between the two much faster than SCRs can.

T3sl4co1l:
Uh, IGBTs and MOSFETs are linearly controllable?

Tim

james_s:
One of the most common modern applications I can think of for thyristors is in triac based light dimmers and motor speed controllers but even those are starting to go away. Most of the dimmers I have now are mosfet based trailing edge dimmers which tend to work a lot better with LED bulbs. I can see why there wouldn't be a whole chapter on them but it does seem like the book ought to have a few pages covering them.

Sal Ammoniac:

--- Quote from: RoGeorge on September 08, 2021, 10:14:30 pm ---Now I'm curious, too.  Have you asked any of them why do they have the book?
--- End quote ---

No, I didn't, but that's something I'll do out of curiosity. It'll have to wait until we're back in the office when the pandemic is over.

KE5FX:
If you ask an analog person, they will probably say that AoE is handy when they need to work in an area where they don't have a lot of existing experience (or colleagues to bug) and need to come up to speed quickly.  Maybe they need to do something with discrete transistors for the first time since they left school, for instance.  AoE is almost certainly all they'll need.

Also, if they don't know much about low noise work but find themselves needing to worry about it, AoE3 is an excellent starting point, and again it's comprehensive enough that it might be all they need.

If a programmer opens the book, they must save versus electrical attack or lose 2d6 x 1000 experience points.

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