Dc to dc 5 volt converter.. converter circuit LM2678 (5A step-down regulator) based on the layout of the board quite well designed also LM3914 prepared with LED voltmeter Node voltage monitoring is easy In addition to “backup” backup battery... Electronics Projects, USB Battery Pack DC to DC 5V LM2678 Converter LM3914 Voltmeter "dc dc converter circuit, power electronic projects, " Date 2019/08/03