This battery circuit provides a charging current of 500 mA depending on the solar panel. The switching circuit is from a National Semiconductor documentation from the 90s.
This simple circuit allows testing of general-purpose diodes and rectifiers and also general...
This circuit not only indicates when the battery is on but also when it is low. The circuit is...
This circuit shows how to add a 1st regulator to a source that already has a step for this...