Collection of projects and tutorials on Electronics

How and Why to use a Buck Switching Regulator

uck DC step down Switching Voltage Regulator, LM2596

Alternative to linear regulator and advantages of Buck Switching DC to DC Step down regulator with basics of handling and using a Step down Switching Voltage Regulator, along with voltage specifications and cautions while using a Switching Regulator. Buck switching voltage regulator DSWY2596 using LM2596

Stepper Motor Driver Schematic

Schematics for Driving a Stepper motor using PIC18F4550 Microcontroller and ULN2003. The source Code posted here is used to drive a single 5 wire bipolar stepper motor.

lm386 amp Audio Amplifier

LM386 IC Audio sound Amplifier home made schematic and circuit diagram

This is simple Audio power Amplifier project that you can make at home easily. We will make this project using a lm386 IC which is a 8 pin IC. You can make it as small as a match box. Due to its tiny size lm386 is perfect for various projects like radio amp, tiny Guitar amp amplifier. lm386 amp is a simple Low voltage Audio power amplifier used in various audio applications. You can find schematics and components required for making this amp here.

Simple Flashing / Blinking LED with a 555 timer Circuit

555 timer IC flashing LED with 555 circuit diagram

If you are looking for a Simple circuit to blink a Light emitting diode without complex circuitry, For some small projects or to  impress your friends maybe then probably small and easy circuits with 555 Timer would be a better option to start with, a Simple Blinking circuit. With help of a Small 555 timer chip you would will be able to that just fine. 555 timer is one of a very low cost and basic IC used now a days. You can make it at very easily here.

Identify Anode Cathode of Led ( Light Emitting Diode )

How to Identify the polarity (cathode/anode) of a LED , How to identity the -ve and +ve (cathode anode)polarity of a LED without using multimeter.LED's or Light Emitting Diode's don’t come with any labeling on it to identify Cathode(-ve,GND) or Anode(+ve).So for identification , led’s comes with a unique way to identify its terminals as Anode or Cathode.

IC 7806 Voltage Regulator

Desctiption: IC 7806 linear Voltage Regulator is used to limit the voltage. Its keeps a steady voltage of 6v .It is one of the most commonly used IC in electrical circuits to maintain a steady voltage and to avoid any fatal damage if the voltage exceeds. It also comes with provision to add heat sink, this linear voltage is similar to IC 7805.

IC 7805 Voltage Regulator

IC 7805 Voltage Regulator IC, Working, Description and Pin out Diagram

Description IC 7805 regulator:
IC 7805 is a 5V Voltage regulator IC that restricts the voltage output to 5V. 7805 comes with provision to add heat sink. The maximum value for input to the voltage regulator is 35V. It can provide a constant steady voltage flow of 5V for higher voltage input till the threshold limit of 35V. If the voltage is near to 7.5V then it does not produce any considerable amount of heat and hence no need for heatsink.