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Power Regulator

The term power regulator refers to the circuitry within a power supply that stabilizes the output voltage and/or current, unaffected by changes in the input voltage and loading. Without a power regulator, the output voltage would be affected by input voltage variations due to the weather, the time of day and brownouts, as the utility power fluctuates. Changes in the output current being drawn would also affect the output voltage, which would in turn affect the operating points and output amplitudes of the circuits being powered.

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