Simple Burglar Alarm Circuits

Feb 28, 2013

The following article discusses a few very simple intrusion detector circuits, or simply burglar alarm circuits. The presented designs are simple yet extremely effective with the functions.

Make this Simple Delay ON Timer Circuit - Application Note Included

Feb 27, 2013

The post explains a simple delay ON timer circuit which allows the connected load at the output to be switched ON with some predetermined delay after power switch ON.

How to Drive a Relay through an Opto-Coupler Circuit

Feb 25, 2013

The following post describes how to drive a relay by using an isolated method, or through an opto coupler device.

High Voltage Transistor MJE13005 - Datasheet, Application Notes

The article relates us with the important features and specifications of MJE13005 device, which is a high voltage, high speed transistor, applicable for many different electronic circuit designs.

How to Make a Simple 220V Transformerless Power Supply Circuit Using a Single MJE13005 Transistor

Feb 24, 2013

The following article presents a very simple low current mains operated transformerless power circuit using an inexpensive MJE13005 transistor and few other passive electronic components.

How to Make an Infra Red (IR) Remote Controlled Motor Circuit

Feb 20, 2013

The article discusses a simple IR remote control circuit which is configured for operating a DC motor in response to the switching made from a standard IR remote handset such as a TV remote or a DVD remote.

Using an NTC Thermistor as a Surge Suppressor - Datasheet, Specification

Feb 18, 2013

Today electronics is getting more and more compact and light weight, it's basically due to the involvement of compact converters which have completely eliminated the age old iron cored transformers. However this had to come at a cost, these units became too vulnerable to switch ON power surges.

But electronics always has appropriate answers, whatever may be the issues. NTC thermistors were created exactly for tacking this, that is in-rush surge currents during power switch ON.

Laser Beam Light Activated Remote Control Circuit

The following post illustrates a simple light toggled/operated remote control circuit, which can be activated by an ordinary flashlight or more effectively through  a laser beam unit (key chain type).

Converting a Dead CFL into an LED Tubelight - Circuit Idea

Feb 17, 2013

You might have already read about this interesting idea in many different sites. It's about converting a dead CFL into a sleek LED tube light circuit. In this post we learn the procedures with more details.

Double DC Input Hybrid Energy Charger Circuit

Feb 16, 2013

The following post describes a simple idea which enables the processing of two different sources of DC inputs derived from different renewable sources. This hybrid renewable energy processing circuit also includes a boost converter stage which effectively raises the voltage for the required output operations  such as a charging a battery. The idea was requested by one of the interested readers of this blog.

Make this Automatic 10 Watt to 1000 Watt LED Emergency Light Circuit

Feb 6, 2013

The following post explains a very simple yet an outstanding automatic 1 watt to 1000 watt emergency lamp circuit. The circuit also includes an automatic over voltage and low voltage battery shut off feature.

Make this 1000 watt LED Flood Light Circuit

Feb 5, 2013

The article discusses a simple 1000 watt LED flood light circuit which can be very easily made by even a layman. The circuit was requested by Mr.Mike, let's know more about the request and the circuit details:

Operating a DC Motor Clockwise/Anticlockwise with a Single Switch Circuit

Feb 4, 2013

The following post discusses the wiring connections for driving a DC motor in clockwise and anticlockwise directions with the help of a single toggle switch and a relay circuit. The idea was requested by one the interested followers of this blog. Let's learn more:
 

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