Growatt SPF 5000 ES - Installation; Mounting the Unit

SPF 5000 ES Service manual
6
3.4 Buck converter
The Buck circuit (Figure 3.4) is active only when the line charging the battery. When the battery is discharging, S1
is ON, D1 is reversed cut off, L1 is used as a filter inductor.
Figure 3.4 Buck topology