智能型*功率PTC热敏电阻器 

工作原理：

智能型*功率PTC热敏电阻器是由电压开关元件与PTC热敏电阻器组合而成的具有复合功能的智能型元件，在*灯、电子镇流器上起*启动作用。利用灯管启辉电压高、工作电压低的特点，选用工作电压高于灯管工作电压、低于灯管启辉电压的电压开关元件，在灯管启辉时电压开关元件导通，电流通过PTC元件使其阻值产生剧烈变化而使灯管点亮，灯管点亮后电压回落到正常工作电压，此时电压开关元件关断*有电流通过，该智能型元件*消耗电能，**功率的目的。

优点：

智能型*功率PTC热敏电阻器的*大优点是在灯正常工作时，不消耗电能使*灯、电子镇流器的效率更高；

由于在工作中PTC元件无电流通过因此不会产生热量，有利于*灯、电子镇流器的稳定工作，寿命更长。

应用：

智能型*功率PTC热敏电阻器的应用与传统PTC元件应用一致。

详细规格型号规格，请来电来函：

Delay-Time PTC Thermistors for Lamps and Lanterns

   Features of Products:

With the development of global energy conservation, PTC Thermistors for electronic ballast softly starting has attracted more and more public attention. The traditional ballast starting, added high-pressure filament material suddenly without preheating, will take serious sputter and loss, and make the light turn black and scrap ahead of time. However, the electronic ballasts we have researched and developed, have been through preheating and high pressure. Lighting the tube, the filament material can only produce slight sputter, and can extend the light life span greatly. Tests by some authority organizations have indicated: Using PTC Thermistor to delay starting, can change the hard starting to pre-heating starting of the electronic ballasts and electronic power-saving lamps. The pre-heating time of wires can reach to 0.4-2.0 seconds. Such electronic ballasts can make the lamp service prolonged to more than 5 times.

Working Theories:

When the high frequency shaking return circuit has been put through, and because PTC is in a cold state and Rt is in a low state of resistance, its resistance value is far lower than that of C2, and the light pressure is smaller than that of starting it. Then current through C1, RT forms the return circuit-preheating filament. Meanwhile, PTC Thermistor is heated to above the Curie temperature, Rt heating temperature exceeding the switch temperature TSW and leaping to the state of high resistance too. Its resistance value is far higher than that of C2, and the current goes through C1, C2, forming the return circuit and causing LC resonance and producing high pressure and lighting the tube. Generally speaking, to delay the preheating time, we should select the relatively lower resistance, taller Tc point and bigger PTC Thermistor.

Main Applications

  Products are mainly applied in fluorescence lamp electronic ballasts, electronic power-saving lamps, and triggers.

企业名：深圳欧蓝达电子有限公司

类型：经销商

电话：

联系人：浮振宁

地址：广东深圳中国 广东 深圳市 广东省深圳市宝安中心区宏发大厦