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Newly Updated Circuit Projects:

Cellphone Low Battery Cut-off with Indicator Circuit

Last Updated on January 29, 2020 by Swagatam 65 Comments

lowbatteryindicatorcircuitforphonechargers

In this post I have explained a simple yet effective low battery cut-off with indicator circuit which can be integrated with cell phone/tablet charger battery packs in order to monitor and avoid battery draining below a set threshold. The idea was requested by Mr. David. Technical Specifications Hi Swagatam. I know it was asked before, […]

Filed Under: Sensors and Detectors Tagged With: Battery, Cellphone, Indicator

Car Warning Tone Generator for Ignition, Headlight, Turn Lights

Last Updated on January 7, 2020 by Swagatam 10 Comments

car warning tone

The circuit explained here is basically a warning signal generator designed largely for automobile application. It triggers a warning signal in a situation when the turn indicator switch is not restored back to its neutral status. The circuit is especially useful for all those cars where the turn indicator system is not supported with an […]

Filed Under: Automobile Electronics Tagged With: Generator, Headlight, Ignition, Tone, Turn, Warning

Refrigerator Motor Soft Start Circuit

Last Updated on January 6, 2020 by Swagatam 26 Comments

refrigerator soft start circuit

Refrigerators tend to draw appreciable amounts of current each time their compressor switch ON, and this could happen many times per day. A soft start circuit to the compressor motor could probably tackle this issue and help save electricity. The idea was requested by Mr. Naeem Khan. Technical Specifications I need your help regarding to […]

Filed Under: Motor Controller Tagged With: Motor, Refrigerator, Soft, Start

Making a Wireless Doorbell Circuit

Last Updated on January 4, 2020 by Swagatam 27 Comments

wireless doorbell transmitter circuit

Today the traditional wired type of doorbells are gradually getting obsolete and are being replaced by the advanced wireless type of doorbells that are easier to install due to their hassle free set-ups. A simple wireless doorbell circuit is discussed in the following post which can be constructed at home. Written and Submitted By: Mantra […]

Filed Under: Wireless Circuits Tagged With: Doorbell, Making, Wireless

How to Understand and Use white LEDs – Datasheet

Last Updated on January 1, 2020 by Swagatam 10 Comments

whiteled

If you are wondering how to correctly use white LEDs in circuits so that they can be illuminated safely without damaging, then this post might help you to evaluate the same. Introduction White LEDs are the future lighting solutions for our cities and homes. They will be easily replacing the traditional CFL and other flurescent […]

Filed Under: Datasheets and Components, Electronics Theory Tagged With: Datasheet, LEDs, Understand, white

Half-Bridge Mosfet Driver IC IRS2153(1)D Datasheet

Last Updated on January 1, 2020 by Swagatam 70 Comments

irs2153appicationnotecircuit

In this post I have explained the datasheet, specifications, pinout configurations and a few application circuit for the IC IRS2153 which is a half-bridge IC from Texas Instruments. The unique feature of this half bridge driver is that it does not have to depend on external logic sources for the operations, rather allows configuring its […]

Filed Under: Datasheets and Components Tagged With: Bridge, Datasheet, Driver, Half, IRS2153, MOSFET

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