| 摘要 |
In various embodiments, a power supply circuit for light sources is provided. The power supply circuit may include a ground line and a current feed line towards said light source, wherein said circuit includes an output inductor interposed in said current feed line, the circuit including an electronic switch interposed in said feed line switchable between an on condition, wherein said electronic switch is configured to ensure continuity of said feed line, and an off condition, wherein said electronic switch is configured to interrupt said current feed line, the circuit further including a rectifier set interposed between said output inductor and said electronic switch to rectify the voltage across said output inductor, the voltage produced by said rectifier set constituting a drive voltage to maintain said electronic switch in said on condition.
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