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Discharge

Battery Deep Discharge Protection Circuit

Last Updated on January 28, 2026 by Swagatam 115 Comments

preventing battery from deep discharge compressed

In this post I have explained how to build a battery deep discharge protection circuit which can be used for protecting any type of battery from over discharge through a connected load. Normally, we are mostly worried about battery getting over charged, and forget about a situation where the battery can get over discharged by […]

Filed Under: Battery Charger Circuits Tagged With: Battery, Deep, Discharge, Protection

Simple Capacitive Discharge Ignition (CDI) Circuit

Last Updated on October 28, 2025 by Swagatam 337 Comments

cdi

In this post I have explained the circuit for a simple, universal capacitive discharge ignition circuit or a CDI circuit using a standard ignition coil and a solid state SCR based circuit. For an audio/video explanation, you can watch the following video representation: How Ignition System in Vehicles Work The ignition process in any vehicle […]

Filed Under: Automobile Electronics Tagged With: Capacitive, CDI, Discharge, Ignition, Simple

Making a Strong RF Discharge Circuit

Last Updated on August 13, 2023 by Swagatam 75 Comments

rfdischargegeneratorcircuit

In this article we study an RF discharge generation concept also called EMP generator capable of producing an intense RF electrical discharge in the air which may have the potentials of paralyzing and permanently damaging all electronic systems in the close vicinity. The idea was requested by Mr. Nidal. Technical Specifications I have seen a […]

Filed Under: Power Supply Circuits Tagged With: Discharge, Making, RF, Strong

Ion Detector Circuit [Static Discharge Detector]

Last Updated on September 18, 2022 by Swagatam 4 Comments

ion detector circuit

The following post discusses a simple ion detector circuit which can be used for detecting positive and negative ions generated by high voltage circuits. This device can be also used for detecting static discharges in the atmosphere. Static discharge is normally emitted by high voltage sources such as sparks, arcing etc. It may be also […]

Filed Under: Sensors and Detectors Tagged With: Detector, Discharge, Static

Electronic 12V DC Capacitive Discharge Ignition (CDI) Circuits

Last Updated on February 16, 2021 by Swagatam 304 Comments

enhanced CDI

In the following post I have explained a simple yet enhanced 12V capacitive discharge ignition system which derives its operating voltage from the battery instead of the alternator for generating the igniting sparks. Since it works independently from the alternator voltage, without depending on a pickup coil signal, it is able to function more efficiently […]

Filed Under: Automobile Electronics Tagged With: 12V, Capacitive, DC, Discharge, Electronic, Ignition

Arduino based Battery Over Discharge Protection Circuit

Last Updated on November 4, 2020 by Swagatam 37 Comments

over2Bdischarge2Bprotection

In this post, I will show how to construct a over discharge protection circuit for 12v battery using Arduino   which can protect 12V SLA battery against over discharge, and also protect the connected load from over voltage in case of overcharged battery is connected. Understanding Battery Charge/Discharge Rates All the batteries have natural decline, […]

Filed Under: Battery Charger Circuits Tagged With: Arduino, Based, Battery, Discharge, Over, Protection

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