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电源技术 LED参数和封装大全
汇集了所有大小功率LED的性能参数和封装尺寸,是LED手册速查宝典。
电源技术 LED电源次级利用TL431恒流方法总结
很实用的LED资料
电源技术 PT4115---降压恒流源,驱动一颗或多颗串联LED
PT4115是一款连续电感电流导通模式的降压恒流源,用于驱动一颗或者多颗串联LED。根据不同外部器件,芯片可以驱动高达数十瓦的LED。PT4115具有调光功能,通过DIM引脚实现模拟调光和宽范围PWM调光。当VDIM低于0.3V时,功率开关关断,芯片进入低功耗待机状态 主要技术参数 输入电压范围:6V to 40V 最大输出LED电流1.2A ...
电源技术 COT Drivers Control LED Ripple Current
COT Drivers Control LED Ripple Current
电源技术 Solutions for LED Driver Overvoltage Protection
Boost LED drivers are often used to drive LEDs in series. If an LED fails while open,overvoltage protection (OVP) is necessary to avoid the damage to a boost integrated circuit (IC) or output capacitor. This application report presents the solutions to increase the TPS61043 LED driver OVP threshold.
电源技术 Using the TPS62150 as Step-Down LED Driver With Dimming
LED Dimmingcontrol
电源技术 确保电解电容器的寿命长-LED灯泡为例
Abstract: Electrolytic capacitors are notorious for short lifetimes in high-temperature applications such asLED light bulbs. The careful selection of these devices with proper interpretation of their specifications isessential to ensure that they do not compromise the life of the end product. This ...
电源技术 宽输入范围1A LED驱动器利用汽车和12V AC电源给高亮度LED供电
LT3474 是一款支持多種電源的降壓型 1ALED 驅動器,具有一個 4V 至 36V 的寬輸入電壓範圍,並可通過編程以高達 88% 的效率來輸送 35mA 至1A 的 LED 電流
电源技术 高电压降压型转换器驱动高功率LED
凌力爾特公司提供了一個規模龐大且不斷成長的高電壓 DC/DC 轉換器繫列,這些器件是專為驅動高功率 LED 而設計的。