| 摘要 |
A driver (100) supplies power to drive at least one light source (130). The driver includes: a current regulator (140) connected in series with the at least one light source; and a conditioning circuit (120) configured to receive an AC supply voltage (110) having a primary frequency of between about 50 Hz to 60 Hz, and further configured to condition the received AC supply voltage to supply power to the at least one light source, wherein the conditioned voltage has a non-zero DC component and an AC component, and wherein a magnitude of the AC component at a frequency that is four times the primary frequency is greater than a magnitude of the AC component at the primary frequency, and is also greater than a magnitude of the AC component at a second harmonic of the primary frequency. |
