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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 ...

https://www.eeworm.com/dl/505/22585.html

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电源技术  COT Drivers Control LED Ripple Current

COT Drivers Control LED Ripple Current

https://www.eeworm.com/dl/505/22640.html

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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.

https://www.eeworm.com/dl/505/22641.html

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电源技术  Using the TPS62150 as Step-Down LED Driver With Dimming

LED Dimmingcontrol

https://www.eeworm.com/dl/505/22642.html

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电源技术  LED去电源化设计

采用HV-LED技术可简化LED电源

https://www.eeworm.com/dl/505/22664.html

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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 ...

https://www.eeworm.com/dl/505/22678.html

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