I'm a noob trying to grasp the transistor concept - 2 questions

AnalogKid

Joined Aug 1, 2013
9,494
So the circuit I drew is only missing the transformer which would change the battery voltage to the voltage required for the EL wire, as well as the flyback diode?
It is not that simple. It is not clear why you thought your circuit would work when you left out a *custom, four-winding transformer*. Your circuit makes pulsed, low-voltage DC into the wire. That is, current flows in one direction only, in spurts. The output of an AC inverter moves electrons in both directions. This, and a much higher voltage, is required for EL operation. So yes, you need a custom transformer.

Another circuit that is common in small inverters is the Royer oscillator. Here is an explanation:
https://en.wikipedia.org/wiki/Royer_oscillator

Here are example schematics:
https://images.search.yahoo.com/sea...aXZz?p=royer+oscillator+schematic&fr2=piv-web

ak
 
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Thread Starter

ClydeF

Joined Jun 10, 2018
8
I don't think it is quite that simple. Your circuit makes pulsed DC into the wire. That is, current flows in one direction only, in spurts. The output of an AC inverter moves electrons in both directions, and I think (no direct experience) that this is required for EL operation. So yes, you need a transformer, but also also something like a Royer oscillator circuit to drive it.

Here is an explanation: https://en.wikipedia.org/wiki/Royer_oscillator

Here are example schematics:
https://images.search.yahoo.com/sea...aXZz?p=royer+oscillator+schematic&fr2=piv-web

ak
Thanks AK, I will look into this. :)
 
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