Solar Lighting Circuit with Supercapacitor Energy Storage
Solar supercapacitor energy storage acts as a dark-on switch. In this previous article, we explored using an LDR to sense external light. With the addition of a diode and a PNP BJT transistor, a solar panel can charge supercapacitors (or a battery) or be used as a switch for an LED or microcontroller. Landscape and security lighting use …