P channel MOSFET as a rectifier.

Holy 💩 someone on here actually knows which way the body diode is supposed to face 😂🤣 Thank you for being smart

ECs MOSFET model is bidirectional just like theory suggests. Thus two diodes form in either type of device (facing from bulk to drain and from bulk to source for N-MOS and vice versa for P-MOS). In reality, the bulk/substrate is then connected to the source of either type, shorting one of the diodes, leaving the "body diode" (N: cathode faces to drain, P: cathode faces to source). Anyway, ECs FET model doesnt include said diode. Also drain and source terminals could be indicated by the arrow on the model (this usually means source terminal) and the direction the devices are inserted into a schematic, but the orientation of those arrows doesnt follow any (european) literature standard.

For this circuit when adding the body diode manually, it will conduct on the same half cycle as the MOSFET + the FETs parameters would need to be adjusted to better fit a standalone "power" device.

Yeah, most of the time you won't see the substrate actually used as a 4th connection unless in some CPU logic for clock control or something like that IIRC? 🤔 Been so long since I've done anything related to that topic though 😂