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Current

Battery Current Indicator Circuit – Current Triggered Charging Cut off

Last Updated on June 1, 2026 by Swagatam 32 Comments

In this post I have explained about a simple battery current sensor with indicator circuit which detects the amount of current consumed by the battery while charging. The presented designs also have an auto cut off when the battery stops consuming current at its full charge level.. Why Current Drops as Battery gets Charged We […]

Filed Under: Indicator Circuits Tagged With: Battery, Charging, Current, Indicator, Triggered

High Current Li-Ion Battery Charger Circuit

Last Updated on May 17, 2026 by Swagatam 205 Comments

universalli ionchargercircuit

In this post I have explained a high current Li-Ion battery charger circuit which can be used for charging any high current, such as 2S3P, 3S2P battery packs. It can be also used for charging other similar high Ah rated Li-ion battery from a car or a truck battery. The idea was requested by Mr. […]

Filed Under: Battery Charger Circuits Tagged With: Battery, Charger, Current, High

How to Make Adjustable Current Limiter Circuits

Last Updated on May 20, 2026 by Swagatam 32 Comments

current sensor circuit module

In many sensitive electronic circuits or loads, adjusting the current limit in its power supply could be one of the most crucial requirements for ensuring a fail proof safety for the various vulnerable devices. A simple method of sensing current this using resistors has been discussed in this article. Integrating a Current Sensor Stage The […]

Filed Under: Electronics Theory Tagged With: Adjustable, Circuits, Current, Limiter

Earth Leakage Indicator Circuit for Detecting Current Leakages in Ground Wires

Last Updated on July 30, 2019 by Swagatam 75 Comments

earth leakage indicator circuit

A simple earth leakage indicator circuit discussed here can be used for getting some very useful results regarding current leakages from an appliance body into the earth pin. The idea was requested by Mr. SS kopparthy. The circuit of the proposed earth leakage indicator is shown in the figure below. Each such unit may be […]

Filed Under: Security and Alarm Tagged With: Current, Detecting, Earth, Indicator, Leakage, Leakages

Non-Contact Current Sensor Circuit Using Hall-Effect IC

Last Updated on December 10, 2023 by Swagatam 10 Comments

non contact method of measuring current

In this article I have explained about a simple non-contact current sensor circuit using a hall effect sensor IC. Why Hall Effect Sensor When it comes to sensing current (Amps) linear Hall-effect devices are the best and the most accurate. These devices can sense and measure current right from a few amps to many thousands. […]

Filed Under: Sensors and Detectors Tagged With: Contact, Current, Effect, Hall, Sensor

High Voltage, High Current Transistor TIP150/TIP151/TIP152 Datasheet

Last Updated on May 17, 2026 by Swagatam 11 Comments

TIP152 darlington

The TIP150, TIP151, TIP152 series are high voltage, high current Darlington transistors which can be used for applications involving voltages at mains 120V or 220V levels. The datasheet and other related details can be read in the following article. The typical applications of this transistor could be for high voltage motor control, automotive ignition, inverter […]

Filed Under: Datasheets and Components Tagged With: Current, High, TIP150, TIP151, Transistor, Voltage

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