Hi, I have started with cross-coupled gate structure of MOSFETs. This structure is for rectification of very low ac input voltages. I have found few problems like reverse leakage current and MOS not switching completely ON and OFF. So, I modified the design by using driver circuits for both NMOS and PMOSes used in my circuit. But I find the Hi pin as zero always. Can you please let me know why it is happening so? IS there any problem in selection of voltages for VBN and VBP? Please clarify. PS: This is not a HOMEWORK problem.