- Published in issue 12/1993 on page 32
Solar panel switch
When a battery is charged by a solar panel during the day, it may discharge via that panel after sunset. This may, of course, be prevented by a diode, but that has the drawback of a forward voltage drop of 0.7 V or, in the case of a Schottky diode, 0.4 V. In many applications. this is not acceptable.