AC to DC Switching Enclosed Power Supply Single Output with PFC Function 5 Volts 90 Amps 450 Watts
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$108
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$99.28
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Product review & video
in this video we're gonna talk about how to create a 12-volt DC power supply from a 220 volt AC power source so the first component that we need is called a transformer specifically a step-down transformer with a term a show of in this example approximately sixteen point nine to one what this transformer will do is it's going to take a 220 volt AC signal or AC power source and convert it to a 13 volt AC power source this is the primary voltage on the left on the right is the secondary voltage the ratio between a primary voltage of the transformer and its secondary voltage is equal to the ratio of the primary turns to the secondary turns so the number of coils of wire on the left side is sixteen point nine times greater than the number of coils of wire on the right side so with this particular transformer we can get an output of 13 volts AC or alternating current now the next component t
