Question 22.10: When the series regulator of Fig. 22-15 is built and tested,...
When the series regulator of Fig. 22-15 is built and tested, the following values are measured: V_{NL} = 10.16 \ V, V_{FL} = 10.15 \ V, V_{HL} = 10.16 \ V, and V_{LL} = 10.07 \ V. What is the load regulation? What is the line regulation?
Load regulation =\frac{10.16 \ V – 10.15 \ V}{10.15 \ V}\times 100\%= 0.0985\%
Load regulation =\frac{10.16 \ V – 10.07 \ V}{10.07 \ V}\times 100\%= 0.894\%
This example shows how effective negative feedback is in reducing the effects of line and load changes. In both cases, the change in the regulated output voltage is less than 1 percent.
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