Introduction Some buildings have inhabitants who don’t use the staircase lights, and those who do must pay huge bills and, therefore, a maintenance fee. Additionally, a lot of power is wasted. However, every problem has … Read more
lm7805
So ever wondered how come some circuit takes a 12V input but is internally driving LED’s Microcontrollers and other low voltage peripherals which are not even designed for such a high voltage? For a newbie, … Read more
12V to 5V Converter using LM7805 IC – Power Supply
Nowadays, almost all electronic devices include a circuit that converts AC supply into DC supply. The section of equipment that converts AC to DC is a DC power supply. In general, at the input of a DC … Read more
Simple 5V Power Supply Circuit Using LM7805 Regulator IC
In this tutorial, we are going to make a “12v and 5v Dual Power Supply”. A regulated power supply is an embedded circuit; it converts unregulated AC (Alternating Current) into a constant DC. This is a simple … Read more
12v and 5v Dual Power Supply
Introduction: A regulated power supply is an essential part of many electronic devices and circuits. These power supplies have semiconductor material employed in them that has a fixed current and voltage rate. The IC 7805 … Read more
7805 Voltage Regulator IC Circuit
Again with the aid of this tutorial, we show you the construction of Temperature Controlled Automatic Switch. So, we improve the circuit with a switch, and now we go to Home Control AC devices with … Read more
Temperature Controlled Automatic Switch
Introduction Imagine you’re traveling in your car by using the maps on your mobile phone and suddenly the battery of your phone get died. Now, you have neither an electrical socket for charging nor the … Read more
USB Mobile Phone Charger | Car Charger | 5V Charger
The LM7805 is a monolithic 3-terminal positive voltage regulator that employs internal current-limiting, thermal shutdown, and safe-area compensation, making them essentially indestructible. LM7805 is intended as a fixed voltage regulator in a wide range of … Read more
7805 +5V 1A Positive Regulator – Datasheet
Introduction Imagine you’re traveling in your car by using the maps on your mobile phone and suddenly the battery of your phone get died. Now, you have neither an electrical socket for charging nor the … Read more
5 Volt USB Mobile / Car Charger using LM7805 – DIY Project
In this tutorial, we are making a 12V 5V power supply with the help of a few low-cost components. First, we talk about what is a power supply? A “power supply” is an electrical gadget … Read more
12V & 5V Dual Power Supply
This is a common challenge an engineer definitely faces in his lifetime, to get 5V DC from a 220V or 110V AC. Sure you can buy 5V adapters off the shelf but would you really … Read more
5V Power Supply (5A) using TIP2955 Power Transistor
A Power bank is a simple portable battery that uses special circuitry to control any power in & power out. The usage of power banks has increased tenfolds in our daily & it functions as … Read more
How To Make A Power Bank Using Super Capacitor
A USB vehicle charger circuit project is a DC power converter that converts the 12V vehicle battery voltage into a 5V stable voltage. This circuit utilizes to supply power from a vehicle cigar lighter socket … Read more
USB Car Charger using LM7805 IC

In this tutorial, we are demonstrating a USB portable charger. Which can use to charge a mobile phone, iPod, Mp3 player, etc. just with a 9V battery. So next time when you find yourself in … Read more