Question about output stage

Oct 27, 2008 1 Replies
L

I want to implement this output stage

formatting link
but i want to use it as class A amplifier and not as AB class. If i use it as class A, all mosfet are on during 2pi period of sinusoid, so Ioutmax is equal to 4Iquies. But if i calculate efficiency, i obtain this result
formatting link
What's wrong? Thanks


Vote
Twitter Facebook LinkedIn
P

** Nonsenese.

I out max = 2 x I quies.

At full sine wave output, current in each mosfet varies from zero to double I quies.

Max efficiency =50 %.

..... Phil

Vote
Twitter Facebook LinkedIn

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required