Patent ID: 11924933
Assignee: ERP POWER, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A lighting system comprising:
a rectifier configured to receive a phase-cut input line voltage from a dimmer at an input of the rectifier and configured to generate a rectified input line voltage; and
a light driver comprising:
a power factor correction (PFC) circuit having a reference input;
a pulse generator circuit configured to generate a pulsed signal based on the rectified input line voltage;
a dimming detection circuit configured to determine whether phase-cut dimming is present at an input of the light driver based on the pulsed signal and to generate a phase-cut detection signal; and
an input selection circuit configured to selectively apply a first voltage or a second voltage to the reference input of the PFC circuit of the light driver based on the phase-cut detection signal.