What is the function of section "D" of the circuit shown in the illustration? Illustration EL-0085
Official USCG Answer & Rule Citation
Correct Answer: Option C — a voltage regulator
Section "D" in regulated DC power supplies typically features Zener diodes or integrated semiconductor regulating ICs. This final stage functions as a voltage regulator, maintaining a constant output voltage regardless of input line fluctuations or varying shipboard load demands.
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