| 摘要 |
<p>A method and a circuit for driving an LED using a unipolar charging/discharging are provided to reduce a manufacturing cost by using unipolar charging/discharging electric energy of a capacitor. An LED driving circuit includes a first unipolar capacitor(C101), a second unipolar capacitor(C102), a first module(U101), and a second module(U102). The first unipolar capacitor and the second unipolar capacitor have different electric capacity. The first module comprises a firs diode(CR101) and at least one LED(LED101). The first diode has a uni-directional electric conduction function. The first diode is serially connected to the LED, and is parallel connected to the first unipolar capacitor. The second module comprises a second diode(CR102) and at least one LED(LED102). The second diode has a uni-directional electric conduction function. The second diode is serially connected to the LED, and is parallel connected to the second unipolar capacitor.</p> |
