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This is a simple project of Stabilized Regulated Power Supply Circuit Diagram. This circuit of power supply, is very simple and easy to built, it can be assembled on a general-purpose PCB, finding its materials is very easy and cost-small. The output voltage is stabilized and is regulated in the region from 0V until + 15V dc, with biggest provided current 1 A. The regulation becomes with the P1. The Q1 is classic power transistor and it needs to be placed on a cool rib (Heatsink), when it works continuously in the region of biggest current it gets hot. The type of transformer is standard in the market. Circuit diagram: Stabilized Power Supply Circuit Diagram Parts: P1 = 330R-Potentiometer R1 = 560R-2W C1 = 2200uF-35V C2 = 100uF-35V C3 = 10uF-25V C4 = 220uF-25V C5 = 100nF-63V D1 = 18V-1.5W Zener Q1 = 2N3055 NPN Transistor T1 = 220VAC – 18V@ 1.5A BR1 = 4x1N4007 Diode Bridge SW1 = Mains On-Off Switch Sourced By: www.circuitsstream.blogspot.com

This is a high quality power supply with a continuously variable stabilised output adjustable at any value between 0 and 30VDC. The circuit also incorporates an electronic output current limiter that effectively controls the output current from a few milliamperes (2 mA) to the maximum output of three amperes that the circuit can deliver. This feature makes this power supply indispensable in the experimenters laboratory as it is possible to limit the current to the typical maximum that a circuit under test may require, and power it up then, without any fear that it may be damaged if something goes wrong. There is also a visual indication that the current limiter is in operation so that you can see at a glance that your circuit is exceeding or not its preset limits.    Technical Specifications - Characteristics Input Voltage: ................ 24 VAC Input Current: ................ 3 A (max) Output Voltage: ............. 0-30 V adjustable Output Current: ............. 2 mA...