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SG3525 Inverter Circuits with Low Battery Cut-off and Overvoltage Regulation

Last Updated on March 16, 2026 by Swagatam 22 Comments

sg3525INVERTERCIRCUITWITHOVERLOADLOWBATTPROTECTIONCIRCUIT

In this post I have explained a 3 powerful yet simple 12V inverter circuits using a single IC SG 3525. The first circuit is equipped with a low battery detection and cut off feature, and an automatic output voltage regulation feature. You may also want to read how to design a sine wave inverter from […]

Filed Under: Inverter Circuits Tagged With: Explained, Inverter, SG3525, Simple, Sine, Wave

Simple 220V RGB LED Bulb Circuit for Christmas, Diwali Decoration

Last Updated on June 28, 2026 by Swagatam 2 Comments

In this post I will explain this 220V RGB slow fading LED bulb circuit step by step and we can start from the left side and slowly move toward the right side so that you can understand what each block is doing. We use many parts like 555, 4017, 33uF, D1 to D4, and others […]

Filed Under: Lamps and Lights Tagged With: 220V, Bulb, Christmas, LED, RGB, Simple

Simple H-Bridge Inverter Circuit using IR2184 ICs

Last Updated on June 30, 2025 by Swagatam 20 Comments

In this post we will try to understand this full bridge or H-bridge inverter circuit using IR2184 ICs. Let us begin breaking it down section by section. If you do not want to read the full article, you can simply watch the following video instead: What This Circuit is Doing: So here basically we are […]

Filed Under: Inverter Circuits Tagged With: Bridge, Inverter, IR2184, Simple

Simple Boost Converter Circuit Diagrams using Transistors

Last Updated on January 27, 2025 by Swagatam 2 Comments

boost converter working model

In this post I have explained a few very simple boost converter circuits using only BJTs, or transistors. Let’s learn more. What is a Boost Converter A DC boost converter circuit is designed for stepping-up or boosting a small input voltage levels to a desired higher output voltage level, hence the name “boost” converter. Since […]

Filed Under: Voltage Control and Protection Tagged With: Boost, Converter, Diagrams, Simple, Transistors

Simple Remote Controlled Curtain Open/Close Circuit Diagram

Last Updated on January 17, 2025 by Swagatam 23 Comments

remote controlled curtain open close circuit diagram

In this article I will explain a simple curtain controller circuit designed by me which can be used to control the opening and closing of a curtain through a remote control. Overview Referring to the circuit diagram in your screen, we can see there are just two relays employed for implementing a remote controlled opening […]

Filed Under: Remote Control Circuits Tagged With: Close, Controlled, Curtain, Open, Remote, Simple

Simple Motorcycle Security Alarm Circuit

Last Updated on May 16, 2026 by Swagatam 4 Comments

motorcycle anti theft alarm circuit diagram using tilt switch and TTP223

In this article I have explained a simple motorcycle ant-theft security alarm circuit using a tilt switch and a TTP223 touch switch. The circuit was requested by Mr. Sergei, as given below. Design Request and Specifications I am a motorcyclist and I would like to ask you to design a simple and cheap alarm system […]

Filed Under: Automobile Electronics, Security and Alarm Tagged With: Alarm, Motorcycle, Security, Simple

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