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4 Simple Uninterruptible Power Supply (UPS) Circuits Explored

Last Updated on July 13, 2024 by Swagatam 193 Comments

fec5960f1fb08b909e75abd56bbead3cf3622a7c large

In this post I have investigated 4 simple 220V Mains Uninterruptible power supply (UPS)  designs using 12V battery, which can be understood and constructed by any new enthusiast. These circuits can be used for operating an appropriately selected appliance or load, let’s explore the circuits. Design#1: Simple UPS using a Single IC A simple idea […]

Filed Under: Inverter Circuits Tagged With: Circuits, Power, Simple, Supply, Uninterruptible, UPS

How to Make a Simple 12 Volt LED Lantern Circuit

Last Updated on January 2, 2024 by Swagatam 37 Comments

LEDlanterncircuit

In this post I have explained how to build a simple 12V LED lantern circuit which may be used at night while travelling and outings such as in picnics, trekking, or camping etc. Introduction So far we have discussed white LEDs comprehensively through many of my earlier articles and have learned how efficient these lights […]

Filed Under: Lamps and Lights Tagged With: Lantern, LED, Simple, Volt

How to Understand and Use IC 4093 NAND Gates, PinOuts

Last Updated on September 18, 2022 by Swagatam 21 Comments

IC 4093 1

In this article I have explained how to use NAND Gates from the IV 4093 or any other similar IC consisting of NAND gates. About IC 4093 The IC 4093 may not have complicated specifications and attributes yet it proposes many useful utilities. It consists of some fundamental blocks which can be configured according to […]

Filed Under: Mini Projects Tagged With: 4093, Gates, NAND, Pinouts, Understand

High Voltage Transistors BUX 86 and BUX 87 – Specifications

Last Updated on January 8, 2024 by Swagatam Leave a Comment

BUX 1

In this article we are going to make an effort to understand the technical specs of the BJTs BUX86 and BUX87 which are high voltage complementary paired transistors. Introduction The Bux 86 and BUX 87 are typically high voltage switching transistors with silicon epibase. They come in TO-126 package and are NPN types. These devices […]

Filed Under: Datasheets and Components Tagged With: BUX, High, Specifications, Transistors, Voltage

How to Make a Remote Control Circuit from a Remote Bell

Last Updated on July 3, 2019 by Swagatam 8 Comments

Remote control circuit 1

The proposed remote control circuit idea can be used for controlling any electrical gadget within a range of 100 meters. How the Circuit is Supposed to Work Since the idea here is to modify an existing circuit of a remote bell unit, becomes super easy without any complications. However the construction part does require the […]

Filed Under: Remote Control Circuits Tagged With: Bell, Control, Remote

2 Simple Infrared (IR) Remote Control Circuits

Last Updated on January 19, 2025 by Swagatam 157 Comments

The proposed infrared or IR remote control circuit can be used to operate an appliance ON/OFF through any standard TV remote control handset. In this write up I have explained a couple of these simple infrared remote control circuits designed for controlling any given electrical appliance through an ordinary or TV remote control unit. Introduction […]

Filed Under: Remote Control Circuits Tagged With: Circuits, Control, Infrared, IR, Remote, Simple

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