Dark detecting led driver circuit to add darkness detecting capability to a solar circuit is easy because the solar panel can directly serve as a sensor to tell when it s dark outside.
Simple solar panel regulator circuit.
Here is the simple circuit to charge 12v 1 3ah rechargeable lead acid battery from the solar panel.
This solar charger has current and voltage regulation and also has over voltage cut off facilities.
A simple solar panel voltage regulator circuit may be witnessed in the following diagram the given switch may be used for selecting a battery charging option or directly driving the inverter through the panel.
The eekit solar charge controller is great option for those needing support for smaller devices such apple and android mobile phone charging solar panels car batteries and more.
The post details how to construct a simple solar panel regulator controller circuit at home for charging small batteries such as 12v 7ah battery using small solar panel using a solar panel we all know pretty well about solar panels and their functions.
To perform the switching you need a diode between the transistors base and its emitter pnp transistor or the collector npn transistor.