The (PWM controller) and TL494 exist in default Proteus libraries. While they are not drop-in replacements (they lack a 600V half-bridge driver), you can add external high-side drivers (e.g., IR2110, which is in the default library).
Many engineering communities, such as The Engineering Projects , offer "V2.0" library packs that bundle various missing sensors and ICs for students. How to Install the Library (Step-by-Step) Ir2153 Proteus Library Download
Once you have downloaded the zip file, follow these steps to integrate it: The (PWM controller) and TL494 exist in default