Patent ID: 11909353
Assignee: KEHUA HENGSHENG CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 11:
12. The photovoltaic power generating system of claim 11, wherein the alarm signal comprises a first alarm signal and a second alarm signal, and the controller comprises:
a first comparing unit, arranged to compare the first sampled current to a first predetermined threshold value, and to generate the first alarm signal for opening the first controllable switch when the first sampled current is greater than the first predetermined threshold value; and
a second comparing unit, arranged to compare the second sampled current to a second predetermined threshold value, and to generate the second alarm signal for opening the second controllable switch when the second sampled current is greater than the second predetermined threshold value.