Circuit Lake

This project is good solution if you want charge your laptop inside your car. ASUS Eee 12v Car Charger circuit based on LM2576 “Simple Switcher” from National Semiconductor. The IC has lower drop-out voltage (~2V) which is important when powering the device from a car or 12v SLA battery. The charger uses PE92108KNL Inductor [...]

This battery charger built using IC MAX713, a NiCad battery charger IC from Maxim. It will control the fast charge time and monitor the cell voltage. The project can charges a battery approximately 80% charge in 22 minutes at a current of 2.4 Amps. Once the fast charging has ended, it trickle charges the [...]

This PIC16F876A-based accu cycler project allow you to charge and discharge NiCd and NiMH accumulators for R/C modelers and others. It has performance close to commercial products in the market. The ‘intelligent’ part of the system can communicates with PC using serial port providing additional process visualization.

The Hibox is High DC Power Meter based on the Atmel Atmega16 microcontroller. This equipment is capable to measure DC voltage up to 40V, currents up to 200A (600A with special sensor) and shows all values on 2×16 characters display. It was developed for enhanced measurements on new Lion/Lipol batteries which are widely used in [...]