How Do Step-Up Transformers Work When Electrical Current Needs to be Increased?
Step-up transformers work much the same as step-down voltage transformers work, but only in reverse. Remember, the primary coil wrapped around the core has an electrical input that is an alternating current (AC). The primary coils (windings) cause an alternating magnetic field in the core. The alternating core then causes the secondary coils (windings) to alternate, thus changing voltage. Direct current (DC) does not work in transformers because they only create a magnetic field in the core, but it is not an alternating magnetic field because direct current is constant and doesn’t change. With direct current, the core would not have an alternating magnetic field and couldn’t produce voltage in the secondary coil. In the step-up transformer, you will notice that the primary coil has a lesser amount of wrappings at the source of input. The secondary coil has a greater amount of wrappings, which will allow a larger voltage, and the current would be greater at the output source. This is st
