The TLP250 output should follow the input PWM but with a slight propagation delay (~250ns typical). The output voltage swings from near 0V to about 11.5V (depending on load).
Cause: The TLP250 model is trying to compute non-linear optocoupler behavior with small time steps. Solution: Increase the Minimum Spice Time Step in System → Set Animation Options to 1ns. tlp250 proteus library download
Copy TLP250.LIB and TLP250.IDX into the LIBRARY folder. If you have a .HEX model, place it in the MODELS folder (usually C:\ProgramData\Labcenter Electronics\Proteus 8 Professional\MODELS). The TLP250 output should follow the input PWM
Avoid: Unverified Google Drive links, "free library packs" with 500+ components, and torrent sites. These often carry ransomware. Cause: The TLP250 model is trying to compute