In order to meet a need of the intensity of illumination with LED in different occasion, LED are combined into one array through the parallel-series frequently. There are many parallel-series means, differ- ent the mean not only affects the lighting efficiency, reliability, cost and service life, and it also related to the choice of driving circuit. Therefore different parallel-series array are chose by the actual lighting need, and to equip with different driving circuit has important significance.%为满足在不同场合对LED光源照度的需求,常将多个LED通过混联方式组合成一个阵列。混联方式有多种,不同的混联方式不仅影响着光源的发光效率、可靠性、成本、寿命等,而且还直接关系到驱动电路的选择。所以,根据实际照明需要选择不同的LED混联阵列,并配置不同的驱动电路有着重要的意义。
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