Continue to Site

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

led driver

  1. hesam_m

    4.5-W 600-Lumen LED Emergency Light Circuit

    In this video, I have introduced an emergency LED light circuit using the SOT23-6 MP3202 chip. The board is compact and can be powered using a mobile phone USB Type C, a power bank, or any portable 5V power source. Schematic & PCB: Altium Designer, Altium-365
  2. I

    Can I use BP2857 constant current LED driver IC with a PWM-controlled MOSFET for dimming and turning the lights on or off with an ESP8266/Arduino?

    I am trying to build a remotely controllable aquarium LED light. I live in a country where DigiKey and Mouser are not a thing. Electronic components are hard or impossible to find in this country. So I'm limited to the parts shown in the schematic. And my skills are not yet adequate for...
  3. J

    LED being dimmed or not showing any light Issues

    Hello there Friends, We are currently seeing some issues with a LED driver circuit. I am not sure about root cause because there are too many variables. During operation the LEDs are being dimmed or not light at all (After 2-3 months in operation ). Attached is the portion of the driver circuit...
  4. R

    LED array help for a novice

    Probably best to say what I want to achieve then what I've tried, and then ask if there is a better way to do it. So. My daughter's restaurant got a Michelin Star this year and I want to make them a Michelin Star for the top of their Christmas tree. To make it a bit more lively I would like to...
  5. M

    dc-dc converter design for LED driver

    Hello everyone, I'm working on led driver design. Circuit sizes should be as small as possible. I will work at a switching frequency of about 2 MHz. My LED specs are 2.82-3.15 V forward voltage at 1050 mA current, maximum power 10 watts. my input voltage is not clear yet but I guess I will use a...
  6. W

    Please help me to stop blowing up boost converters

    So far I've blown up 4(!) boost converters with a fairly simple circuit. Obviously I'm doing something wrong, please educate me... The converters I've tried are https://www.ebay.co.uk/itm/191827311442 and **broken link removed** My power source is a 5C lipo battery approx 19V 16Ah My load is...
  7. R

    20Khz+ PWM high-wattage LED producing too much heat

    I'm working on dimming a high-wattage LED (50W--12V/4.17amps) with a 3.3V micro-controller. The solution that has worked so far is by using a low-side (PNP) MOSFET to drive the LED and a NPN transistor to drive the MOSFET via the 3.3V signal from the MCU. At 488hz PWM I can dim the LED light...

Latest threads

New Articles From Microcontroller Tips

Back
Top