Adjustable regulated power supply 3-30 V / 2.5 A

Adjustable regulated power supply LM723 schematicThis Adjustable regulated power supply circuit uses voltage regulator LM723 IC which are already well known. IC LM 723 is designed to provide a voltage of 2-37 volt supply voltage with 150mA current, and this current is small indeed, but with the help of an external transistor can be achieved current up to 10 A, and in this circuit can provide voltage 3-30V and is limited to 2.5 A currnt with the help of TR2.

Below is a PCB layout of the Adjustable-regulated power supply 3-30 V / 2.5 A :


adjustable ps LM723 component layout

adjustable power supply LM723 PCB layoutAdjustable regulated power supply 3-30 V / 2.5 A parts list :

R1 = 560R 1/4W
R2 = 1,2 K 1/4W
R3 = 3,9 K 1/4W
R4 = 15K 1/4W
R5 = 0,15 R 5W
C1 = 100nF
C2 = 2200uF 35-40V
C3 = 100 pF
C4 = 100uF / 35V
P1 = 10K potensiometer
D = B40 C3300/2200,   bridge rectifier 3A
TR1 = BD135
TR2 = 2N3055
IC = LM723
Power supply is an electronic device that supplies electric energy to an electrical load. The primary function of a power supply is to convert one form of electrical energy to another and, as a result, power supplies are sometimes referred to as electric power converters. Some power supplies are discrete, stand-alone devices, whereas others are built into larger devices along with their loads. Examples of the latter include power supplies found in desktop computers and consumer electronics devices.

Tags: 2.5A power supply 3-30V power supply Adjustable regulated power supply IC LM 723 LM723 regulator voltage

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