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Newly Updated Circuit Projects:

5 V to 10 V Converter for TTL Circuits

Last Updated on April 19, 2020 by Swagatam Leave a Comment

doubler

In this post I have explained a simple 5 V to 10 V converter circuit which can be used in TTL circuits where only 5 V is available and converting this 5 V to 10 V can be extremely useful for operating an adjacent circuit which may require a supply of around 9 V or […]

Filed Under: Power Supply Circuits Tagged With: Circuits, Converter, TTL

How to Measure Dissolved Oxygen in Liquids

Last Updated on April 19, 2020 by Swagatam 3 Comments

dissolvedoxygensensor

In this post I have explained a sensor device used for measuring the level or amount of dissolved oxygen in water and other fluids. The idea was requested by Mr. Amit Technical Specifications  I didn’t find sensors or sensor modules for Dissolved Oxygen or pH readings for us to use with controllers for our projects. […]

Filed Under: Water Controller Tagged With: Dissolved, Liquids, Measure, Oxygen

PWM Motor Soft Start Circuit to Prevent High Consumption during Power Switch ON

Last Updated on April 7, 2020 by Swagatam 224 Comments

triacpwmdriver

In this post I have explained an effective PWM motor soft start circuit which can be used for enabling heavy motors with a soft start and thus prevent the equipment from drawing dangerous high currents. Why a Soft Start High wattage motors such pump motors or other forms of heavy industrial motors tend to draw […]

Filed Under: Motor Controller Tagged With: High, Motor, Prevent, PWM, Soft, Start

Non-Contact Cable Tracer Circuit

Last Updated on April 7, 2020 by Swagatam 13 Comments

noncontactcabletracercircuit

In this post I have explained a simple non-contact cable tracer circuit which can be used for locating faults in long wound cables and wire bundles without a physical contact. The Circuit Concept Why would you shred $100 to buy a cable tracer when it is easier to develop one spending less than $10! This […]

Filed Under: Sensors and Detectors Tagged With: Cable, Contact, Tracer

Make this Solar Powered Fence Charger Circuit

Last Updated on March 15, 2020 by Swagatam 114 Comments

enhanced two wheeler ignition circuit

A Fence charger or energizer is an equipment which is used for charging(electrifying) a fence or a boundary in order to protect the inside premise from human or animal interventions. Since these boundaries are mostly of large fields and parks, are normally away from the main cities, and powering them through some renewable option becomes […]

Filed Under: Security and Alarm Tagged With: Charger, Fence, Powered, Solar

How to Make a GHz Microwave Radar Security Alarm Circuit

Last Updated on February 28, 2020 by Swagatam 19 Comments

microwave2Bsensor2Bprocessor2Bcircuit

In this post I have explained a GHz microwave radar security alarm circuit which is designed to detect an intruder within the critical zone only while it’s moving, static objects produce no effect for the sensor. Using Doppler Sensor KMY24 In the previous article I have explained about a microwave Doppler radar sensor module KMY […]

Filed Under: Security and Alarm, Sensors and Detectors Tagged With: Alarm, Microwave, Radar, Security

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