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②CCFL(冷阴极荧光灯)在点亮之前,会呈现出一个很高的阻抗,须加一个1500V(均方根值)以上的正弦波交流电压,其峰—峰值可达3000～5000 VP-P;而当灯管点亮后,气体会全部电离,灯管内的阻抗会降
CCFL (Cold Cathode Fluorescent Lamp) will exhibit a very high impedance before lighting. A sine wave AC voltage of 1500V (root mean square) must be applied with a peak-to-peak voltage of 3000-5000 VP-P. When the lamp is turned on, the gas will be completely ionized, and the impedance in the lamp will drop