Wireless Cellphone Charger Circuit

Sep 29, 2015

In this post we will try to wireless cellphone charger circuit for facilitating a cordless cellphone charging without employing a conventional charger.

How Wireless Power Transfer Works

Sep 27, 2015

In this post we discuss regarding how wireless power transfer works or the transfer of electricity through air without using wires.

CDI Tester Circuit

Sep 26, 2015

The circuit presented here is a tester circuit for testing CDIs for motorcycles and three-wheelers.

Rotating Beacon LED Simulator Circuit

Sep 25, 2015

The post explains a simple LED flashing beacon circuit which exactly simulates a rotating police beacon light by generating alternating pulses of suddenly rising and fading illumination effect on the connected LED. The idea was requested by Mr. Ankit Agarwal

Submersible Pump Start/Stop Circuit

Sep 24, 2015

The post explains an automatic submersible pump start, stop circuit with dry run protection in order to implement an automatic ON/OFF switching of the motor in response to the high/low water levels of the overhead tank.

Motorcycle Regulator, Rectifier Tester Circuit

The motorcycle regulator, rectifier tester circuit presented here can be used to test a 6-wire shunt type regulator-rectifiers for a 3-phase charging system of motorcycles. These reg./rectifiers (RR-units) are usually sealed with epoxy and it is considered difficult to find out if the unit is faulty or not.

Remote Controlled Fish Feeder Circuit

Sep 23, 2015

In this article we learn how to make a simple infrared controlled fish feeder circuit. The idea was requested by Mr. Harishvar.

How to Connect a TSOP1738 IR Sensor

Sep 22, 2015

In this post we learn with sequential diagrams regarding how to connect a TSOP series infrared sensor and use it for a specified IR remote control operations.

Make this Simple Washing Machine

Sep 21, 2015

In this post we learn how to make a simple washing machine using a single motor and a cam shaft mechanism, cheaply.

Borewell Motor Pump Starter Controller Circuit

Sep 19, 2015

The post explains a circuit which controls a submersible borewell motor by operating its red (Start) and green (Stop) buttons, in response to low level, high level water conditions, and also in a condition where the motor may experience a dry run situation. The idea was requested by Mr. Vamsi.

Make Free Drinking Water from Sea Water

Sep 18, 2015

The post explains a cheap yet effective method of desalinating large quantities of sea water into free drinking water at home. The idea was requested by Mr. Mike.

Wireless Home Security Circuit - Solar Powered

Sep 17, 2015

The article discusses a remote controlled wireless home security circuit using which enables the detection of a possible intrusion way in advance depending on how and where the remote sensors are positioned over the selected strategic locations and the desired distance from the house. The idea was requested by Mr. Dave Monette.

Emergency Incubator Heater Circuit with Battery Charger

Sep 16, 2015

The post discusses a 12V power supply with battery charger circuit which can be implemented as an uninterruptible emergency heating system for incubator chambers. The idea was requested by Mr. Arya.

Smart ATS Circuit

Sep 14, 2015

The following article explains an enhanced Automatic Transfer Switch (ATS) Circuit, which includes several cutomized sequential changeover relay stages making the system truly smart!

Rechargeable LED Lantern Circuit Using Dynamo

Sep 12, 2015

In this post we study a simple rechargeable LED lantern circuit which features battery charging option from a dynamo as well as from a mains 220V source. The idea was requested by Mr. Chidimonday.

Identify Component Specifications in a Circuit

Sep 11, 2015

The post explains the correct way of understanding and identifying component specifications in a given circuit diagram, even if the details are missing in the document or the schematic.

Solar, Wind, 2-Input Hybrid Battery Charger Circuit

Sep 9, 2015

The article explains a dual input hybrid solar wind battery charger circuit using cheap and ordinary components. The idea was requested by one of the interested members of this blog.

How a Potentiometer (POT) Works

Sep 8, 2015

In this article we study how potentiometers work and try to understand their working principle and how to use these devices in electronic circuits.

3 Stage Industrial Camshaft Timer Circuit

Sep 3, 2015

The post explains a simple sequential timer designed for implementing a specified set of actions involving a 3 step relay activation which in turn is used for executing the desired mechanisms. The idea was requested by Mr. Ali.

Solving Inverter "No Load Auto-Shutdown" Problem

Sep 2, 2015

In this post we learn how to trick an inverter's "no load auto-shutdown" feature through an external circuit so that the inverter may be kept running even with minor, below permissible loads at the output. The idea was requested by Mr. Em.

Cheap Cellphone Controlled Water Pump Circuit for Farmers

Sep 1, 2015

The post presents a cheap cellphone remote controlled water pump circuit which allows farmers (user) to switch ON their field water pump without practically visiting the spot, thus saving precious time and energy for the individual. The idea was requested by one of the dedicated members of this blog.

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