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Modify

How to Modify a Transformer

Last Updated on January 23, 2024 by Swagatam 16 Comments

Commonly, the perfect transformer might not be readily accessible for purchase, or if it is available, it can be costly. Nonetheless, there is a possibility of modifying the transformer’s secondary winding, especially when producing small voltage and current outputs. This approach can provide a highly cost-effective solution for creating a customized power supply. Transformer Power […]

Filed Under: Power Supply Circuits Tagged With: Modify, Transformer

How to Modify 78XX, LM323, LM350, LM317 Voltage Regulator Circuits

Last Updated on April 24, 2023 by Swagatam 10 Comments

78XX regulator pinout

In this article I have explained many different methods of modifying voltage regulators ICs to improve their voltage and current handling characteristics. We learn how to externally modify these regulators using transistors and ICs for upgrading their current and power handling capacities. We discuss how to modify 78XX ICs, LM317 ICs, LM350 ICs, and LM323 […]

Filed Under: Power Supply Circuits Tagged With: 78XX, LM317, LM323, LM350, Modify, Voltage

How to Modify SMPS for Adjustable Current and Voltage Output

Last Updated on July 5, 2025 by Swagatam 161 Comments

variablecurrentsmpscircuit

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 I have explained how to make a variable voltage SMPS circuit by employing a simple shunt regulators stage, in the present hack also […]

Filed Under: SMPS and Converters Tagged With: Adjustable, Current, Modify, Output, SMPS, Voltage

Modify Human Speech with this Digital Voice Changer Circuit

Last Updated on May 15, 2026 by Swagatam 24 Comments

voicechangercircuit

In this post I have explained a voice modulator circuit which will change or transform an individuals unique voice into a completely new form. The new voice will be different to the original voice tone and unrecognizable. The Circuit Concept The characteristic tone of  every individuals voice is specifically unique in all circumstances. How often […]

Filed Under: Audio and Amplifier Projects Tagged With: Changer, Digital, Human, Modify, Speech, Voice

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