My sincere Apologies,,,,this schem is horrendous, there are RC timing components on the schem, then the component identifys different when you click, then on the BOM its different again. The switching frequency now is coming out, for this Full bridge, as 450kHz, rather than 47kHz. Its UC2825 with rt = 6040R and ct = 560p. Again my sincere apologies.
The gate drives appear to have been connected up as if its a PSFB, but its not a PSFB driver.
...Just unpicking it all now.