Microcontroller Simplified – Basic Knowledge on Microcontrollers
Video on Microcontroller simplified: For more details on electronics, visit http://www.edgefxedu.in Note: Edgefx provides 100% output guaranteed electrical and electronics live project kits for 3rd...
View ArticleUnderstanding the Reset Capacitor Function in Microcontroller
Video explanation on Understanding the Reset Capacitor Function in Microcontroller: For more free circuits on electronics, visit http://www.edgefxedu.in Note: Edgefx Technologies Pvt. Ltd provides 100%...
View ArticleSound Sensitive Switch
You can use this circuit to operate a Relay through the sound of claps. It is highly sensitive and can detect the sound of the clap from a distance of 1-2 meters. AC loads such as Lamps, Fan etc can be...
View ArticleAutomatic Lamp using 1W LED
Here is an Automatic Lamp using high power White LED that turns on in the evening and stays on till morning. It uses 1 watt White LED and is directly powered from 230 volt AC using a Transformer less...
View ArticleZener Diode and its Applications
Zener diode is a type of Diode that allows the flow of current in the forward direction similar to a rectifier diode but at the same time it can permit the reverse flow of current also when the...
View ArticleTriac in power control systems
Triac (Triode for ac) is the semiconductor device widely used in power control and switching applications. It finds applications in switching, phase control, chopper designs, brilliance control in...
View ArticleMicrocontroller Simplified – Basic Knowledge on Microcontrollers
Video on Microcontroller simplified: For more details on electronics, visit www.elprocus.com Note: Edgefx provides 100% output guaranteed electrical and electronics live project kits for 3rd &...
View ArticleUnderstanding the Pins of IC 555
IC 555 is the popular Timer Chip used to make timer circuits. It was introduced in 1972 by the Signetics. It is called as 555 because there are three 5 K resistors inside. Inside the IC, there are two...
View ArticleUnderstanding OpAmps
Operational amplifiers are the basic building blocks of Analogue electronic circuits. They are linear devices with all properties of a DC amplifier. We can use external resistors or capacitors to the...
View ArticleIC 555 Tester
IC 555 also called as 555 timer is one of the most popular and most versatile IC ever designed. If you are a student or hobbyist or a professional electronics designer with an experience of over two...
View ArticleOp Amp Tester
Operational Amplifiers are widely used in electronic circuits as amplifiers, comparators, voltage follower, summing amplifier etc. Most of the commonly used Op Amps like 741, TL071, CA3130, CA3140 etc...
View ArticleRemote Control Tester
Here is a useful tool to test the working of the Remote handsets used for operating TV, VCD player and other remote operated gadgets. These devices use Infrared rays pulsating at 38 kHz and the sensor...
View ArticleCircling LEDs Effect
In some of my previous articles I have described how to use IC 4017 and have also explained the frequency calculations of astable multivibrator implicitly while describing IC 555 tester. So, taking...
View ArticleBattery Charger with Timer
Lead Acid battery requires long time charging with moderate current to attain full charge. 24 hour continuous charging is ideal for both lead acid battery and tubular battery. When the battery first...
View ArticleSimple Heat Sensor
Make this simple heat sensor circuit to monitor the temperature in heat generating devices like Amplifier and Inverter. When the temperature in the device exceeds the allowable limit, the circuit...
View ArticleDelay on Relay
High voltage and heavy inrush current at power on is a severe problem that can destroy devices like TV. The transients in power lines and voltage spikes cause high voltage in the main lines especially...
View ArticleRegulated Power Supply with Short Circuit Indicator
Here is a 12 volt work bench power supply to test the prototypes. It gives well regulated 12 volts DC to power majority of circuits and also for the bread board assembly. An add on circuit of Short...
View Article1W LED Emergency Lamp
Make this simple but useful White LED emergency lamp using only a few components. It can be plugged into the AC socket and it lights at the moment of power failure. It emits cool white light in the...
View ArticleTone Generators
Here are two tone generating circuits for your projects. One is a melody generator circuit using IC UM66 and the other one is the Siren generator using IC UM3561. Both the ICs are low cost and easily...
View ArticleAuto dimming Aquarium Light
Here is a simple LED lighting system for your Aquarium. It uses a panel of 45 LEDs to light the background of the Aquarium. It remains lit during day and night but turns dim around 12 in the midnight...
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