| 摘要 |
A method of controlling a dimming level of one or more light emitting diodes ("LEDs") includes receiving a phase cut dimming signal having a pulse width and frequency, generating a PWM signal having a duty cycle and frequency corresponding to the pulse width and frequency, respectively, of the phase cut dimming signal, and controlling a power converter coupled to the one or more LEDs with the generated PWM signal so that the dimming level of the one or more LEDs is a function of the duty cycle of the generated PWM signal. Example circuits for practicing this method and alternative methods are also disclosed. |
