In Mosfet Bridge-powerstages we need a shoot trough protection. This is enough for Gate drivers in negative Logic driving from one PWM-pin. 4 parts and the obligate 100nF over Vcc and Vss. The 74AHCT132 provides Schmitt Trigger Inputs. Best for use on slow edges like RC phase shifted signals. I need 15minutes on my phone for that. Nice app! But mouch better when we can simulate Schmitt Trigger Inputs ;-)