tinoaja07 / USB LED Lamp Circuit

Loaded

0

0

Files

Schematic

PCB

Log InSign Up

Chat

Welcome to Flux

Treat Flux like your intern. Tell it what you'd like to build and it'll get to work. You can also ask it questions, brainstorm ideas, and teach it your preferences. Learn More

Explain project
Write a project description
Find schematic issues
Create a test plan
Simulate a circuit
Prepare for Manufacturing
Component Selection Workflow
New Subsystem Wizard
Write I2C initialization code
Generate firmware skeleton
​
Sign up to send

To get started, talk to Flux or create a New Document.

Reviews

Documents

    Documents are markdown text files which describe project goals, capture details, or even simulation outputs.

    Assets

    No assets added.

    USB LED Lamp Circuit

    USB LED Lamp Circuit thumbnail
    Here is a simple USB powered lamp that can be used to light your desktop during power failures. The circuit operates from the 5 Volt available from the USB port. The 5V from the USB port is passed through current limiting resistor R2 and transistor Q1. The base of transistor Q1 is grounded via R1 which provides a constant bias voltage for Q1 together with D2. The diode D1 prevents the reverse flow of current from battery. C1 is used as a noise filter. Two white LED’s are used here for the lamp, you can also use a 2 V torch bulb instead of LED’s. LED D3 indicates connection with USB port.

    Properties

    Properties describe core aspects of the project.

    Pricing & Availability

    Distributor

    Qty 1

    Arrow

    $0.01–$0.05

    Digi-Key

    $0.01–$0.20

    LCSC

    $0.01

    Mouser

    $0.20

    Verical

    $0.01–$0.02

    Controls

    Welcome 👋

    Flux helps you build PCBs faster with an AI teammate!

    Create your account to collaborate, stay updated, fork your own version, and get instant answers from our AI agent.

        Introducing AI Placement!
        AI Placement Demo

        AI-Powered Component Placement

        Let AI place your components intelligently. AI Placement analyzes your schematic and positions components for optimal routing, signal integrity, and board density.

        From Schematic to Layout in Seconds

        Skip the tedious manual placement. AI Placement generates a starting layout you can refine, saving hours of repetitive work on every new design.

        Works With Auto-Layout

        Pair AI Placement with Auto-Layout for a complete AI-driven PCB design flow — from component placement through trace routing, all with one click.

        Try it