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  • Tips and Tricks for Optimizing NCL30000 Based LED Drivers
    Some LED driver power supply. designs have special requirements or need additional. features not covered in the existing demo boards and. application notes. This document covers some ideas to. enhance performance in practical LED driver solutions.
  • Interfacing the NCP1840 LED Driver to an I2C Serial EEPROM
    The NCP1840 LED driver allows for full. programmability of 8 separate LED channels through a. simple I2C serial communication interface. Programming is. conveniently done by writing to internal registers via the. serial interface. In addition to being able to write to the. registers, the NCP1840
  • Buck-Boost LED Driver Using the PIC16F785 MCU
    This application note presents the design equations, schematics and source code for a 5.5W power LED driver using the PIC16F785 MCU. The application, as shown, can be connected to operate as a buck-boost converter or a boost converter. The PIC16F785 makes a great choice for this application because
  • A Digital Constant Current Power LED Driver
    AN1138 A Digital Constant Current Power LED Driver drive current for this type of LED would be 350 mA and Author: Stephen Bowling a typical forward voltage would be 3.5V. Secondly, we Microchip Technology Inc. will assume that the circuit input voltage is 12V. The inductor value will be chosen
  • What type of LED driver or power supply do I need?
    sources that provide a "constant-current" output have typically been referred to as LED drivers. In the past, AC-DC power supplies that provided a regulated "constant-voltage" to LEDs were referred to as LED power supplies. Today, the terms "LED driver" and "LED Power Supply" are used
  • 30 V, 2 A High Efficiency CVCC LED Driver
    This Design Note (DN) is an extension to. ON Semiconductor's Evaluation Board User's Manual. EVBUM2039/D and features a 30 V max, 2 A version of the. off-line, NCL30051 based constant voltage, constant. current (CVCC) high efficiency LED driver. The original. document features a 55 V max, constant
  • Offline LED Driver Intended for ENERGY STAR (R) Residential LED Luminaire Applications
    This reference document describes a built-and-tested,. GreenPoint (R) solution for an isolated 8 W constant current. LED driver which is intended to support the residential. power factor requirements of the DoE ENERGY STAR. Standard for Solid State Lighting Luminaires (Version 1.1. - 12/19/08
  • Circut Ideas: LED driver lights three LED strings and provides constant voltage supply
    Typical uses today include backlighting for LCD TVs, projectors, computer displays, camera flashes, and vehicle brake lights. All need constant-current LED drivers that are economical and offer high dimming ratio, high efficiency, and precise adjustable current. To save space, some LED drivers

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