Patent ID: 8030855

Claim:
A single-stage electronic ballast for a fluorescent lamp, comprising: a boost circuit, including a first inductor, a first capacitor, a first diode and at least a switch, the positive terminal of the first diode being connected to the first inductor, the negative terminal of the first diode being connected to the at least a switch; and at least a load unit, including at least a fluorescent lamp, two terminals of the first capacitor being connected to the at least a load unit, the at least a switch being connected to the at least a load unit for controlling its turning-on and turning-off, wherein the at least a load unit comprises a fluorescent lamp tube, a second capacitor and a second inductor, and the positive terminal of the second capacitor is connected to the at least a switch and the negative terminal of the second capacitor is connected to the second inductor, and wherein the boost circuit and the at least a load unit share the at least a switch.