I am trying to design 100W (100V - 1A) Opamp Current Buffer with unity voltage gain. I will use PA441 or LT6090 opamp.
Apex published a circuit for this amplifier. Please look at page 3 from the link below
Shared circuit is for inverting amplifier configuration. I need non-inverting configuration. When I tried the circuit in LTSpice, for negative side, it seems works well. But for positive side there is a problem witn nmos i could not handle.
How could I amplify 0 to 100V 100mA output to 0 to 100V 1A with non-inverting configuration?
I would be very glad if anybody could help. Thanks.