LTC3780 DC-DC 5V-32V to 1V-30V 10A Constant Voltage Current Automatic Step-up Step-down Regulator Charging Module. The input uses a replaceable fuse to protect the power supply and equipment. The output has an error indicating lamp; it will light when the output voltage drift is too serious, in case of short circuit, and other faults. The whole electrolysis uses patch, low resistance, high frequency capacitors, to bring the ripple down to the freezing point. The inductor uses iron silicon aluminum, 0.8 double winding, and generates less heat