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Automobile Electronics

How to Connect Car LED Downlight

Last Updated on March 13, 2019 by Swagatam Leave a Comment

A car LED downlight available in the market can be easily integrated to an existing car battery if its rating is identical to the battery’s voltage rating. I have explained more regarding one such request sent by Mr. Allwyn Siqueira. How to Connect Downlight to 12V Car Battery Hi Swagatam, I’ve just spent the last […]

Filed Under: Automobile Electronics, Lamps and Lights Tagged With: Connect, Downlight, LED

Car Door Close Optimizer Circuit

Last Updated on January 1, 2019 by Swagatam 18 Comments

In this post I have explained and tries to solve a common car door opening issue which may be seen in quite a few old model cars. The proposed circuit of a car door close optimizer was requested by Mr. Mark Rothwell. Technical Specifications Just stumbled across your site, hope you can help/advise me?I have […]

Filed Under: Automobile Electronics Tagged With: Close, Door, Optimizer

Lamp Outage Detector Circuit for Car Turn Signal

Last Updated on January 8, 2024 by Swagatam 2 Comments

Flasherwithmalfunctionindicator

The O.E.M. turn signal flashing units installed in automobiles have two  basic functions i.e. Flasher and Lamp outage detection. These flashers  are usually built with an 8-pin IC like U2044B, U6432B etc. which are  specifically made for automotive flashers. Designed and Written By Abu-Hafss Circuit Operation These flashers normally oscillate at about 1.4Hz. When a […]

Filed Under: Automobile Electronics Tagged With: Detector, Lamp, Outage, Signal, Turn

Vehicle Speed Limit Alarm Circuit

Last Updated on January 8, 2024 by Swagatam 18 Comments

In our previous articles we have learned comprehensively regarding the ICs LM2907/LM2917 which are fundamentally frequency to voltage converter ICs, and are ideally applicable in all such relevant fields. Here we see how the same chip can be applied for making a vehicle speed limit alarm circuit. Using a Single IC for Speed Detection As […]

Filed Under: Automobile Electronics Tagged With: Alarm, Limit, Speed, Vehicle

Accurate Speedometer Circuit

Last Updated on May 30, 2022 by Swagatam 30 Comments

Speedometer

Here we’ll see how a simple yet accurate analogue speedometer circuit can be constructed at home using just a single IC and a few external passive components. The speedometer can be universally used with all 2-wheeler, 3-wheeler, even in bicycles for indicating their speeds. Using Frequency to Voltage Converter In my previous article I have […]

Filed Under: Automobile Electronics, Meters and Testers Tagged With: Accurate, Speedometer

Multi-spark CDI Circuit

Last Updated on November 17, 2020 by Swagatam 103 Comments

multispark cdi circuit

In this post I have explained an enhanced multi-spark CDI circuit which is universally suited for all types of automobiles. The unit can be built at home and installed in a particular vehicle for achieving greater speed to fuel efficiency. The Circuit Concept The following diagram illustrates an enhanced version of a multi-spark CDI circuit. […]

Filed Under: Automobile Electronics Tagged With: CDI, Multi, spark

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