Patent ID: 11895749
Assignee: JOULWATT TECHNOLOGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 9:
10. The LED drive circuit according to claim 9, wherein the parameter regulating circuit comprises at least two sets of the preset values of the maximum on-time parameter and the current limit parameter,
when the second voltage signal is in a first voltage interval, the maximum on-time parameter is selected as a first maximum on-time parameter, and the current limit parameter is selected as a first current limit parameter;
when the second voltage signal is in a second voltage interval, the maximum on-time parameter is selected as a second maximum on-time parameter, and the current limit parameter is selected as a second current limit parameter, and
wherein the first maximum on-time parameter is less than the second maximum on-time parameter, and the first current limit parameter is less than the second current limit parameter.