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Newly Updated Circuit Projects:

Adding a PWM Multi-spark to Automobile Ignition Circuit

Last Updated on May 16, 2026 by Swagatam 13 Comments

pwm 3

The post investigates a simple 2 pin oscillator circuit which may be inserted between the pickup coil and the CDI unit of a vehicle for achieving an induced multi trigger input in response to each signal from the pickup coil coil, this in turn is expected to enhance the sparking ability of the CDI coil. […]

Filed Under: Automobile Electronics Tagged With: Adding, Automobile, Ignition, Multi, PWM, spark

Adjustable CDI Spark Advance/Retard Circuit

Last Updated on May 16, 2026 by Swagatam 66 Comments

advance2Bretard2Bignition2Bcircuit

In this post we’ll learn about a simple circuit which allows a manual adjust feature for the spark timing of a motorcycle’s CDI either to achieve an advance ignition, retarded ignition or simply a normal timed ignitions. After a comprehensive study regarding the subject I was apparently successful in designing this circuit which can be […]

Filed Under: Automobile Electronics Tagged With: Adjustable, Advance, CDI, Retard, spark

How to Make HHO Fuel Cell Circuit in Automobiles for better Fuel Efficiency

Last Updated on May 16, 2026 by Swagatam 176 Comments

HHO2Bgas2Bin2Bmotorcycle

In this post we’ll try to investigate the making of HHO gas in automobiles for enhancing their mileage by approximately 50% or more, that means a reduction of petrol or diesel consumption by the same amount. In the previous post I tried to put forth an innovative design of a high voltage low current generator […]

Filed Under: Automobile Electronics, Renewable Energy Tagged With: Automobiles, better, Cell, Efficiency, Fuel, HHO

Car Blown Brake Light Indicator Circuit to Detect Broken Bulb Filament Tail Light

Last Updated on May 16, 2026 by Swagatam 19 Comments

CARBULBFUSEINDICATOR 1

In this post I have explained a simple fused or blown car brake light indicator circuit using a single IC 555 and a few other passive components. The idea was requested by Mr. Joel Bayongasan Technical Specifications You innovations are great! Thanks for this blog. May I request something please? I was searching for a […]

Filed Under: Automobile Electronics Tagged With: Blown, Brake, Broken, Detect, Indicator, Light

Speed Dependent Brake Light Circuit

Last Updated on May 16, 2026 by Swagatam 9 Comments

Tachometer

In this post I have explained an innovative brake light circuit using speed detection of the vehicle which could be a motorcycle. The circuit implements an advanced brake light switch ON ensuring a much safer riding experience for the user. The idea was requested by Mr. Rayan. Circuit Objectives and Requirements I have an idea, […]

Filed Under: Automobile Electronics Tagged With: Brake, Dependent, Light, Speed

Solar E Rickshaw Circuit

Last Updated on May 16, 2026 by Swagatam 15 Comments

Electric Rickshaw

In this post I have explained a simple solar electric rickshaw or E rickshaw circuit which can easily built by anybody at home and used with a locally fabricated vehicle. The idea was requested by Mr. Amit. The Design Selecting a BLDC In one of my earlier posts I presented an idea which could be […]

Filed Under: Automobile Electronics, Solar Controller Circuits Tagged With: Rickshaw, Solar

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