A regulator output changes from +12.1 V with no load to +11.9 V at the rated current of 2.0 A. The load regulation can be expressed as
A)1.12%/A
B)3.36%/A
C)1.68%/A
D)0.84%/A

Question

Quizplus · Accepted Answer

Load regulation is calculated as the change in output voltage divided by the change in load current, expressed as a percentage. Here, the change in voltage is 12.1V - 11.9V = 0.2V, and the change in current is 2.0A. Thus, load regulation = (0.2V / 2.0A) / 11.9V * 100% = 0.84%/A. However, the correct calculation should consider the percentage change relative to the full output voltage range, leading to a different interpretation. The correct answer, based on the options provided and the typical understanding of load regulation calculation, seems to have been misinterpreted in the explanation. Load regulation is usually given as (Voltage change / Load current change) * 100%, which in this case directly calculates to a percentage without dividing by the output voltage again. The mistake was in the explanation process, not in the calculation formula provided.

A Regulator Output Changes from +12