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The Hand Crank Phone Charger ••• You can use a 3D Printer motor as a phone charger. You basically just need a circuit to convert the AC voltage into DC voltage (called a full bridge rectifier) and a buck converter to regulate the output DC voltage into the 5V a phone needs. You also need some solid forearm endurance… ••• #diygenerator #engineering #electronics #learnengineering #engineeringstudent #powergeneration #phonecharger | Engineezy
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