I'd like to design a 'simple', high voltage AC source. Up to 280Vrms, 300 .. 400W, 50 .. 60Hz
Initially I was going to use a high power class AB audio amplifier to drive a low frequency
transformer. Then I found the TAS5630 class D amplifier. The use of class D amplifier could
make my device much smaller and lighter and would allow me to generate higher frequency
signals.
Can the TAS5630 drive a high frequency transformer?
Is the phase shift between various outputs of the TAS5630 controller and stable?
I would be ideal if I could use two primary windings connected in parallel and driven
by the differential outputs of the TAS5630: winding 1 OUT_A - OUT_B, winding 2 OUT_C - OUT_D.
Regards,
jgorsk
If you what to pass 50-60Hz the transformer need to be sized to that - and thats big.
rgds,
Kim
Hello MIK,
Thanks for your reply. I do relize that I need high power, bulky transformer to pass 50-60Hz signals.
That's why I'd like to use class D amplifier and pass high frequency signals through a high frequency,
small size transformer. My idea is to use the transformer instead of the choke and apply filtering
at the secondary side of the transformer. 600W, TAS5630 based amplifier seems to be what I need.
The primary winding can be (at least theoretically) connected between OUT_A and OUTB, a second
primary (to increase the output power) could be connected between OUTC and OUT_D.
I don't want to invest time and money before I make sure that the idea can work at all.
The TAS5630 datasheet doesn't mention timing relations between AOU_A, B, C and D
outputs in varius modes of output configurations. I need to know if the outputs are in phase, stable phase shifted or phase shift is random.
Do you have access to a development kit to check the timings or is there more detailed documentation
for the chip available?
I know that application is way from 'standard' applications of class D amplifiers but could be interesting.
At least for me. Maybe for you as well. Just think of the application notes you could write if that worked. [:)]
Kind regards,
jgorsk.
ok！I have succeed parrel two tas5630 chip for POWER SOURCE,It can be used for current source or voltage source,
If you interest it ,please connect me by mail .authlxl@gmail.com