I've tried to reproduce the NAND Schmitt triggers circuit to drive my H-bridge MOSFET as per following source:
All my design files are at this GitHub link:
It has Enable, PWM and direction pins that are supposed to controlled by Arduino, however my PCB doesn't work yet. I used 74HC132D & CD40106B Schmitt trigger IC and used an LED to indicate each direction, but it never turns on.
Any help is really appreciated.
Updated: I updated new schematic base on new advises , but still has its issue (logic voltage drop)