wjlzhx
Member level 5
hi everyone
I have a problem in my design.
when i use BTL output ,the THD is large ,i simulate with spectre
now i have found the problem ,in sometime the NMOS and PMOS power thansistor both off.
i think that the OTA's gain is too small ,so i let the bais current increase ,in this time the THD is improved
but if i do this ,the power thansistor's static current became large .so what can i do???
if you have some advice please tell me
thank in advance
I have a problem in my design.
when i use BTL output ,the THD is large ,i simulate with spectre
now i have found the problem ,in sometime the NMOS and PMOS power thansistor both off.
i think that the OTA's gain is too small ,so i let the bais current increase ,in this time the THD is improved
but if i do this ,the power thansistor's static current became large .so what can i do???
if you have some advice please tell me
thank in advance