grizedale
Advanced Member level 3
Hello
we are doing a SMPS for a guitar amplifier. (class D amplifier)
Vin = 400V
Vout = +/-50V.
Max Power output = 190W
I have thought of doing this with a flyback, since a discontinuos mode design can be done with:-
Peak primary current at max load = 3.6A
I(pri) RMS at max load = 1.1A
I(sec) at max load = 5.6A peak
....so as you can see, despite the high power levels, the currents are all low, due to the high Vin and Vout.
Will this be ok for a flyback.?
And if not, please, why not?
Guitar amplifiers tend to have very low average power compared to their peak power.
Guitar amplifiers also have lots of transients...no-load to full-load regularly.
Flyback is by far cheaper than any other topology for this.
we are doing a SMPS for a guitar amplifier. (class D amplifier)
Vin = 400V
Vout = +/-50V.
Max Power output = 190W
I have thought of doing this with a flyback, since a discontinuos mode design can be done with:-
Peak primary current at max load = 3.6A
I(pri) RMS at max load = 1.1A
I(sec) at max load = 5.6A peak
....so as you can see, despite the high power levels, the currents are all low, due to the high Vin and Vout.
Will this be ok for a flyback.?
And if not, please, why not?
Guitar amplifiers tend to have very low average power compared to their peak power.
Guitar amplifiers also have lots of transients...no-load to full-load regularly.
Flyback is by far cheaper than any other topology for this.
