DC/DC

stages

LED strings

DC

input

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Getting Familiar With the Kit

2

Getting Familiar With the Kit

2.1

Kit Contents

The kit consists of:

•

LED BoosterPack

•

AC/DC Power Adapter (12 V 1A)

•

Quick Start Guide

2.2

Kit Specifications

The LED BoosterPack has the following specifications:

•

Power Input:

–

6 V minimum @ 1.2A

–

20 V maximum @ 360 mA

•

Boost Stages (each):

–

Input

•

6 V minimum @ 400 mA

•

20 V maximum @ 120 mA

–

Output

•

24 V nominal @ 100 mA

3

Hardware Overview

Figure 2 illustrates a LED lighting system running from DC power.

Figure 2. Lighting System Topology

There are multiple ways of controlling LEDs. This board uses the C2000 devices to control a separate DC

supply for each of the LED strings. Brightness control is accomplished using the C2000 devices by

independently varying the output power of each DC/DC stage. This allows the user to control the average

current passing through each LED string. Since average current is roughly proportional to lumen output,

each LED string’s brightness is controlled. Figure 3 shows the circuit diagram for the LED BoosterPack.

5

SPRUHH9 – July 2012

C2000 LED BoosterPack

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