Hi Bob,

I was suggesting that I'd generate DC with the LED driver and then=20
switch that on/off rapidly to get the 1KHz-2Khz AC (though square wave).

Cheers,
-Neil.


On 11/19/2015 12:46 AM, Bob Blick wrote:
> Hi Neil,
>
> I've experimented a bit with this, and one thing I found is that EL wire
> really likes AC, like push and pull that is fairly well balanced. DC and
> chopped DC don't work very well.
>
> Best regards, Bob
>
> On Wed, Nov 18, 2015, at 08:59 PM, Neil wrote:
>> So I've got an EL driver that I want to use for a wearable, but it's
>> bulky for that purpose, and I need something very thin.  Seems the
>> battery and transformer are the larger parts of the whole driver
>> module.  I decided to redesign it with a LiPo, but it seems that all the
>> EL driver circuits I'm finding have transformers.  The EL-wire spec is
>> 90-120V at 1Khz-2kHz.  Couldn't I use a high-voltage LED driver for this
>> purpose?  Something like Fig 8 here...
>> http://www.monolithicpower.com/DesktopModules/DocumentManage/API/Documen=
t/getDocument?id=3D3473
>>
>> I'd still have to throw an oscillator in there to modulate the LED
>> driver, so I'll have to experiment to see if the LED driver can switch
>> on/off that quickly.
>>
>> Anyone know of a simpler way to do this?  Or maybe even a very thin (say
>> few mm tall) transformer that can work for this purpose?
>>
>> Cheers,
>> -Neil.
>>

--=20
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