Re: Re: +/- 10V Gecko

From: Jon Elson <jmelson@...>

mariss92705@... wrote:
<s>

>> A voltage amplifier behaves exactly as you describe in closed loop
>> operation. This is primarily because of the additional 90 degree
>> phase lag introduced when compared against a transconductance
>> amplifier. IR compensation introduces phase lead which improves the
>> loop phase margin somewhat.
>>
>> A voltage amplifier has uses other than driving a motor.

>Certainly!

I once saw a bunch of big Gettys servo drives at a rock concert. They were
running parallel connected speakers at about 3 kw output on each amp.

Think of it, with four Gecko 330's you can have 6.4 kw surround sound.
Even the neighbors dog will leave the patch!

Ray