1 Reply Latest reply on Mar 11, 2016 10:26 AM by bob.marlowe

    TCPWM drive Bridge p-mos n-mos



      I'm using TCPWM component to drive a brdige p-mos + n-mos. 

      Output of component (line, line_n) is on two GPIO, configured as digital output (HW connection)

      There are two situation.

      1 First situation PWM generated carrier signal and signal "kill" is used for modulating signal.

      2. second situation, i want to stop PWM component and put two GPIO to high impedance input (so PMOS is open and Nmos is closed, standby situation)

      There are many kind of solution(use output enable with register, logic port, etc....)

      Is there a best solution? via Software? 

      Bad condition: pmos and nmos both close.

      Attached image of circuit.