This is a mini UPS based on TI’s BQ24650 Li-Ion battery charger and Liner’s LTC4353 load switch. The BQ24650 is essentially a multi-chemistry battery charger specifically meant for solar panels. It can charge upto 4 Li-Ion batteries. Other chemistries are…
This is a mini UPS battery backup based on Linear Technology’s LT3652HV. The HV is a high voltage version that can charge upto 4 cell Li-Ion batteries. Other chemistries are also supported. This one supports charging using a solar panel…
A laser cutter/engraver is an incredibly useful tool and the things you could do with them are limited to your imagination. I tinker with a lot of electronics and build boards that mostly have a lot of SMD components. I…
I needed a dual output power supply that could power a hard-drive. I later realized that today’s newer hard-drives use a single supply of 5V. However by that time I had already designed this one. So I thought I’d build…