DC power supply 3-30V 3-30V 3A stabilized

February 27th, 2012 by psu | 1 Comment | Filed in Regulated Power Supply

3-30V power supply 3 A circuit diagramThis DC power supply circuit diagram is designed as an additional or as a permanent power supply for all general circuits based on a stable DC voltage between 3 and 30V provided that current consumption does not exceed 3A. Of course, this DC power supply can also be used to other purposes. By replacing the trimmer by a potentiometer, it can even be used as adjustable supply unit. A good quality heatsink must be used.

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Adjustable regulated power supply 3-30 V / 2.5 A

February 21st, 2012 by psu | No Comments | Filed in Regulated Power Supply

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.

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A simple variable power supply circuit with L200

February 18th, 2012 by psu | No Comments | Filed in Regulated Power Supply

simple power supply L200 circuit diagramVariable power Supply scheme shown here is very simple, its used regulator IC L200 (ADJUSTABLE VOLTAGE AND CURRENT REGULATOR). L200 is a monolitthic IC for current and voltage programmable regulation. It has current limiting, power limiting, thermal shutdown, and over voltage protection.

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Switch Mode Voltage Regulator with 85% efficiency

February 9th, 2012 by psu | No Comments | Filed in Stabilization circuits, Switching Power Supply

85% efficiency SMPS circuit

Switch Mode Power Supplies (SMPS) is now widely used in modern electronic equipment due to its compact design and high efficiency of about 80% or more. The switch-mode regulator circuit presented here has an efficiency of around 85%.

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24V / 2A DC Power Supply

January 17th, 2012 by psu | No Comments | Filed in Regulated Power Supply

24v power supply at 2 A

The 24 volts power supply circuit is very simple. It uses a zener diodes and Darlington transistors type TIP122. Output voltage is set at 24 V with 2 amperes current output.

Lowering the voltage 230 V sector is provided by the transformer TR1, whose secondary voltage is 24 V. Available voltage after rectification and filtering is the order of 32 V to 34 V (depending on transformer and voltage).

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