Solar Night Lamp

Here is a simple Solar Night lamp that turns on automatically at sunset and stays on till morning. It uses 1 Watt High Bright White LEDs to illuminate a confined area.

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Diode Pump

Diode Pump is a rectifier circuit that makes a varying AC signal output to a DC voltage relative to the peak-to-peak voltage across the AC waveform. Diode pump can be used to switch on a driver transistor or to give in digital or analog circuits for DC measurements. The design note given here explains the working of the diode pump.

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