zxasqw123
Member level 1
i have designed a rail to rail op for LCD driver,i use the floating CLASS AB output stage ,but to my surprise ,the voltage between gate of NMOS/PMOS is not followed .so when i charge the cap ,|VGS|(PMOS) increase ,at the same time VGS (NMOS) is also increasing ,and when i discharge the cap,|VGS|(NMOS) is increasing,at the same time |VGS|(PMOS) is also increaing ,i am really confused ,why my floating CLASS AB can not work as a battery ,can anyone give me some advice ?
thanks in advance.
thanks in advance.