Patent ID: 11929614
Assignee: SUNGROW POWER SUPPLY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 11:
12. The switching power supply for the energy storage system according to claim 11, wherein the low-power-consumption wakeup unit comprises a first voltage dividing and stabilizing branch, a second voltage dividing and stabilizing branch, a switching unit, an optical coupler, and a driving unit, wherein
a first side of the first voltage dividing and stabilizing branch and a first side of the second voltage dividing and stabilizing branch are both connected to the DC bus;
a positive electrode on a second side of the first voltage dividing and stabilizing branch is connected to an end of the switching unit;
a negative electrode on the second side of the first voltage dividing and stabilizing branch is connected to another end of the switching unit via a light-emitting side of the optical coupler;
the switching unit is turned on when the energy storage system enters the standby state;
a light-receiving side of the optical coupler is arranged between two ends of a second side of the second voltage dividing and stabilizing branch;
a first side of the driving unit is connected to both ends on the light-receiving side of the optical coupler; and
a second side of the driving unit is configured to drive the second controllable switching unit.