12V to 5V DC step-down Converter - Simple Electronic Project
Introduction
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Diagram of 5V Converter Mobile Charger LM7805
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Components Needed for this Project:
You can get the components from any of the sites below:
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Related Basic Electronic Mini Project Circuit Diagram:
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Working Principle
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Frequently asked questions
A resistor in line to drop 12V - 7V = 5V. If the current is down by the device's variable Power supply you will need an active regulator.
How to make 12 volts to 5-volt converter mobile charger LM7805, dc converter dc step down converter 12 volts to 5-volt converter. ( 12V to 5V DC Step down Converter Using LM7805 ) voltage regulator circuit.
A 10k ohm resistor in series, with the 10k ohm resistor connected to the +12V supply, connected to ground (the - connection on the 12V supply).
The concept for getting the voltage you want is simple, but there are a number of details. Conceptually, put a 10k ohm & a 12–7 = 10k ohm resistor in series, with the 10k ohm resistor connected to the +5 V supply, and the 10k ohm resistor connected to GND (the - connection on the 5V supply).
The resistor uses a 12V 2A charger for a device that requires 5V 1.5A.
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