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3.5. Multiple outputs

Power supplies that have more than one output taken from the same transformer do not allow accurate regulation voltage in all of the outputs. The charging conditions of each power supply influence its own voltage output and that of the others. If accurate regulation is required in more than one output, normally the solution is to provide a feedback to the power supply from the output with the highest power level and place switched or linear regulators to those auxiliary outputs requiring this. This allows to also limit the current at these auxiliary outputs regardless of the main power supply limitation.

Figure-18

Figure-18