When buck-boost transformers are connected to boost the input voltage, the primary and secondary voltages are: ___

Question

06-12-2024
Engineering

College

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When buck-boost transformers are connected to boost the input voltage, the primary and secondary voltages are: ___

Answer :

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Joanne231 Joanne231 · Answer 1 · 2023-08-09T13:45:52-04:00

Final answer:

When a buck-boost transformer is boosting the input voltage, the primary voltage is lower than the secondary voltage, which is a characteristic of a step-up transformer. This property is governed by the transformer equation, relating the voltages to the number of windings on each coil. It's essential to note that transformers work with AC voltage, due to their reliance on the principle of electromagnetic induction.

Explanation:

When buck-boost transformers are connected to boost the input voltage, the primary and secondary voltages can either be higher or lower than each other depending on the type of transformer in use. Specifically, when a buck-boost transformer is set to boost mode, the primary voltage is lower than the secondary voltage, inferring to option b.

This is determined by the transformer equation, which states the ratio of secondary to primary voltages equals the ratio of turns in their windings. Consequently, step-up transformers, in essence, increase the voltage and decrease the current from primary to secondary.

However, it's important to be cognizant that transformers are used in association with AC voltages, as they rely on Faraday's law of electromagnetic induction, which, in turn, is dependent on changing magnetic fields.

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