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Newly Updated Circuit Projects:

Simple Low Dropout Regulator Circuits Explained

Last Updated on May 3, 2026 by Swagatam 53 Comments

5V LDO

The transistorized low dropout voltage regulator circuit ideas explained in the following article can be used for getting stabilized output voltages right from 3 V and above, such as 5 V, 8 V, 9 V, 12 V, etc with an extremely low dropout of 0.1 V. For example, if you make the proposed 5 V […]

Filed Under: Power Supply Circuits Tagged With: Circuits, Dropout, Explained, Regulator, Simple

Adding a Soft Start to Water Pump Motors – Reducing Relay Burning Problems

Last Updated on April 30, 2026 by Swagatam 140 Comments

In this post I have explained a few innovating and simple soft start circuit examples which may be implemented with heavy duty motors so that they are able to initiate with a soft start or a slow sluggish start instead of a sudden, bumpy start Why Soft Start is Crucial for Heavy Motors When heavy […]

Filed Under: Water Controller Tagged With: Adding, Motors, Pump, Soft, Start, Water

LPG Gas Leakage Detector Alarm Circuit

Last Updated on April 29, 2026 by Swagatam 7 Comments

MQ 6

Are you feeling vulnerable or suspecting a possible LPG gas leakage in your house? Then may be this gas leakage alarm circuit might help you. Written by: Sai Srinivas The Concept This circuit is a simple solution for detecting LPG gas leakage in households which causes severe physical and monetary losses if left unattended for […]

Filed Under: Security and Alarm Tagged With: Alarm, Detector, Leakage, LPG

How to Connect 5V Relay Module: Testing and Interfacing

Last Updated on April 29, 2026 by Swagatam Leave a Comment

In this post we are talking about this handy little gadget called a 5V single-channel relay module. It is super useful for our microcontroller projects whether we are using Arduino, Raspberry Pi, or even the ESP8266/ESP32. Let us break it down together, what it is, how it works, and how we can connect it. Understanding […]

Filed Under: Timer and Delay Relay Tagged With: Channel, Connect, Module, Relay, Single

Difference Between Forward Converter and Flyback Converter

Last Updated on April 26, 2026 by Swagatam Leave a Comment

We know SMPS can be made in different ways, but two common ones are flyback converter and forward converter, which may look same at first. But inside working is not same at all, so this part matters before you design transformer or power stage. Flyback Converter We see a flyback converter works in a way […]

Filed Under: SMPS and Converters Tagged With: Between, Converter, Difference, Flyback, Forward

SMPS Spot Welding Circuit using IC SG3525 Explained

Last Updated on April 25, 2026 by Swagatam Leave a Comment

Spot welding needs very low voltage but very high current, that too for very short time, so now this whole thing is built around that idea. In this design we push big current in small time period for safely creating the required welding joint, done. Audio/Video Representation How the Circuit Works Now the circuit, it […]

Filed Under: SMPS and Converters Tagged With: Explained, SG3525, SMPS, Spot, Welding

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