Oh, you mean sine-wave then I guess?


On 11/19/2015 11:40 PM, Bob Blick wrote:
> Switching it on/off is not AC.
>
> BB
>
> On Thu, Nov 19, 2015, at 07:14 PM, Neil wrote:
>> Hi Bob,
>>
>> I was suggesting that I'd generate DC with the LED driver and then
>> 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 wir=
e
>>> really likes AC, like push and pull that is fairly well balanced. DC an=
d
>>> 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 t=
he
>>>> 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 th=
is
>>>> purpose?  Something like Fig 8 here...
>>>> http://www.monolithicpower.com/DesktopModules/DocumentManage/API/Docum=
ent/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 (s=
ay
>>>> few mm tall) transformer that can work for this purpose?
>>>>
>>>> Cheers,
>>>> -Neil.

--=20
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