| 摘要 |
A light string includes a plurality of bulbs connected in series and powered by an AC power supply. Each bulb is connected in parallel with a capacitor, the capacitor is a polarized electrolytic capacitor, and capacitance of the capacitor is 47uF-120uF; a rated voltage of the capacitor is higher than a rated voltage of the bulb, and the rated voltage of the capacitor is 16V-100V; and when one bulb in the light string fails, the capacitor that is connected in parallel with the failed bulb operates normally; a positive plate and a negative plate of the capacitor connected in parallel with said each bulb are both covered with an oxide film insulating layer; when the light string is powered on, the oxide film insulating layer prevents breakdown and short circuit of the capacitor connected in parallel with said each bulb under the influence of a reverse voltage of the AC power. |
| 主权项 |
1. A light string, comprising a plurality of bulbs connected in series and powered by an AC power supply, wherein each bulb is connected in parallel with a capacitor, the capacitor is a polarized electrolytic capacitor, and capacitance of the capacitor is 47uF-120uF; a rated voltage of the capacitor is higher than a rated voltage of the bulb, and the rated voltage of the capacitor is 16V-100V; and when one bulb in the light string fails, the capacitor that is connected in parallel with the failed bulb operates normally;
a positive plate and a negative plate of the capacitor both have an oxide film insulating layer thereon; when the light string is powered on, the oxide film insulating layer prevents breakdown and short circuit of the capacitor connected in parallel with said each bulb under the influence of a reverse voltage of the AC power. |
