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Adjustable 3V, 5V, 6V, 9V,12V,15V Dual Power Supply

The purpose of this paper is to detail a variable dual lab power supply circuit which has an adjustable range from 3V, 5V, 6V, 9V, 12V, and 15V or even more at a current rate of 1 amp. Written By: Dhrubajyoti Biswas The Dual Power Supply Concept In regard to positive volt it is preferable … Read moreAdjustable 3V, 5V, 6V, 9V,12V,15V Dual Power Supply

Making 3.3V, 5V Voltage Regulator Circuit with Diodes and Transistors

In this post we learn to make 3.3V, 5V voltage regulator circuits from higher voltage sources, such as 12V or a 24V source without ICs. Linear ICs Normally a step down voltage from a higher voltage source is obtained by using a linear IC such as a 78XX series voltage regulator IC or a buck … Read moreMaking 3.3V, 5V Voltage Regulator Circuit with Diodes and Transistors

How to Modify SMPS for Adjustable Current and Voltage Output

This article discusses a method through which any ready made SMPS can be converted into a variable current smps circuit using a few external jumper links. In one of the previous articles we learned how to make a variable voltage SMPS circuit by employing a simple shunt regulators stage, in the present hack also we … Read moreHow to Modify SMPS for Adjustable Current and Voltage Output

100 amp Variable Voltage Power Supply Circuit

The post describes a  simple but extremely versatile 100 amp, variable voltage power supply circuit using just a few BJTs in parallel and in a common collector mode. The idea was requested by Mr. Andre. Technical Specifications Hello Swagatam, I was wondering if you could possibly assist me. on the blogs I have seen some … Read more100 amp Variable Voltage Power Supply Circuit

Making a Strong RF Discharge Circuit

In this article we study an RF discharge generation concept also called EMP generator capable of producing an intense RF electrical discharge in the air which may have the potentials of paralyzing and permanently damaging all electronic systems in the close vicinity. The idea was requested by Mr. Nidal. Technical Specifications I have seen a … Read moreMaking a Strong RF Discharge Circuit

LED Driver Power Supply Circuit Using Dimmer Switch

In this post we discuss an effective and efficient high current compact LED Driver power supply using a dimmer switch gadget. In one of my other posts I discussed a high voltage transformerless power supply circuit that used a triac for controlling the capacitive output, however since the concept involved shorting the capacitive output by … Read moreLED Driver Power Supply Circuit Using Dimmer Switch

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