The results showed that the integrated power supply type, adjustable from 0-30 volts works is. When voltage AC 220 volts to the transformer. Remember transformer serves to reduce the voltage to 220 volts to 30 volts, then the AC voltage. Connected to the rectifier In order to convert AC voltage to a DC voltage of 30 volts is supplied to the regulator circuit diagram of an adjustment. In order to control the DC voltage. And an adjustable pressure range from 0-30 volts for supply to the electrical and electronic circuit experiment further. In addition, Another part of the voltage Be submitted to the regulator circuit diagram of a constant. The output voltage of 5 volts, 12 volts and 15 volts (both positive and negative voltage power supply) for the experimental circuit used with static type power supply. And also the AC voltage, low voltage, 5, 10, 12, 15, 20, and 24 volts for trial with AC signal.
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