Recent content by ME@VT

I'll be taking a look into the transformers. I think it would actually be pretty cool to wrap one up and see it work, whether to our desired efficiency or not. We'll see. I'll post again once we get this thing going. I appreciate everyones help, sincerely. Devon

F95toli and Chroot: We actually tried this initially, but it didn't work, as the SIN and COS signals share a ground inside the motor. Huge bummer... There is no way to add an additional ground without altering the motor and killing out warrantee. Thank you for the suggestions though.

-Ok, Sounds good. --Alright, here. I only need to flip the sign on the sine, not the cosine. So it is alright if I just use two parallel lines for the cosine run directly off the amplifier? Next, if I only want to change the sign on SINE, couldn't I run the output from the power amp into...

berkeman, I have no problem generating the pre-amplified signals, as they are being sent via dSpace. The problem is that I only have 2 amplifiers capable of producing a 130V, 40-45kHz signal. The amps are ridiculously expensive, and we can't afford 2 more. Can a transformer handle...

Right, but if I understand you correctly, I would be inverting the sine wave PRIOR to amplification, I would then wind up with this: (1.) cos (2.) -sin out of the two amplifiers. In which case, I am left with the same problem as before, except that I would be needing to change ONE of...

Alright, here is the setup: First off, the reason for the request: I have a Traveling Wave Ultrasonic Motor that I am trying to run tests on. The motor is actuated by 4 sets of piezoelectrics attached to two separate stators within the motor package. The first set of PZTs on stator 1...

I took a look at inverting transformers, but I am not really seeing sine--> (-sin) inverters. I see that I can invert DC signals to AC signals, but that's about it. If you have a moment, would you mide ellaborating a little bit about how I might use the transformer to alter the wave sign...

Inverting a 130 Vrms, 40-45 kHz Signal?? Hello everyone, I was wondering if anyone might be willing to help me out on a little problem I am having: I have an amplifier output of 130*sin(f*t), f = [40 - 45 kHz], and I need to run this into two parallel lines such that initially, line 1...