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This USB(input) to DC(output) boost converter can step up 5V to 9V/12V, with a switch for selecting voltage and a digital LED display for showing output voltage.
The USB input can be connected to various mobile power supplies, which is more convenient to use, and can be widely used in industrial sensors, routers and optical modems.
Project: Do Not Throw Away your Car Blower Motor - New Invention with 12V 22 Amp DC Motor
Introduction: In this video, I will be using an old 12V 22 Amp Car Blower DC Motor to make this new invention which is a High-Speed Cordless Rechargeable Air Blower. So Do Not Throw Away your Car Blower Motor.