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.
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
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...
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...
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...
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...
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...
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...
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