| Mains hum from loudspeakers isn’t always caused by bad wiring, poor cables, interference, or grounding issues. Sometimes the amplifier power...
| Mains hum from loudspeakers isn’t always caused by bad wiring, poor cables, interference, or grounding issues. Sometimes the amplifier power...
| Smart battery storage for balcony power plants now lets you use more of your own energy instead of giving it away. Improved control and effi...
| We kick off 2026 with the annual Power and Energy edition of Elektor. Inside, you’ll find a range of insightful tutorials and projects from...
| Is it possible for a tiny microcontroller to run on a hefty 48-V battery? This project makes it happen using a custom step-down converter —...
| Semiconductor-based devices are intended to work within a certain temperature range only. They might malfunction or stop working abruptly if...
| The EU’s €100bn Clean Industrial Deal and Circular Economy Act will accelerate clean tech, recycling, and a unified European grid. The plan...
| Ever wondered how a solar-powered lamp powers an LED with just a single 1.2 V cell? A closer look reveals a clever single-transistor voltage...
| Want to test batteries or solar panels? You need a load resistor. With this electronic load resistor project, you can not only simulate a lo...
| If your notebook has dead batteries — perhaps no longer commercially available — or a failure on the charging circuit, this notebook power b...
| This project offers a way to power portable Raspberry Pi-based devices using a rechargeable battery. It includes a system that supports head...