Patent ID: 11917736
Assignee: SIGNIFY HOLDING B.V.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F  Y | IPC F  H

Claim 8:
9. A method of controlling a retrofit Light Emitting Diode, LED, based lighting device in accordance with claim 1, wherein the method comprises:
receiving, by said AC LED driver, from said power source, an AC current;
driving, by said AC LED driver, said at least one LED based on said received AC current;
supporting, by said filament circuit, said filament current to circulate back to said power source for indicating a presence of said lighting device to said power source, and
controlling, by said pin-safety circuit, said pin-safety switches connected to both said two, separate, connecting terminals such that said AC current does not flow through said filament circuit when said pin-safety switches are closed.