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Can a step-down converter do the step-up in reverse?

Posted by: ROSELJR on Tue, 11/09/2021

Can a step-down transformer do the step-up in reverse? For example, a transformer inputs 220V and outputs 12V. Because the turns ratio of the primary coil and the secondary coil is equal to the voltage ratio, if I add AC 12V to its secondary coil, can it output 220V on the primary coil?


Submitted by PI-Jodec on Fri, 11/12/2021


If the transformer mentioned is a forward transformer then it is possible. Thanks!



PI Jodec