The selectable Voltages 6V, 9V, and 12V Linear Voltage Regulator

Published:2013/3/28 3:55:00 Author:Ecco | Keyword: Selectable Voltages, 6V, 9V, 12V, Linear Voltage Regulator | From:SeekIC

We can build a multiple voltage power supply 6, 9, and 12V (AC-DC Adapter) with the circuit shown in the following schematic diagram. Not only provide multiple voltage output with single voltage supply, this circuit add the benefit of regulating the voltage for better stability. The TIP31 transistor should be installed with proper heat-sink to prevent overheating. A transformer with rectifier diodes and filtering capacitor can be used to supply this circuit. You can use 1 A 15V transformer with 2200uF filtering capacitor for the AC to DC adapter.



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