Our electronics and appliances usually need AC power to work, even if the original source of power is DC like a battery. This is why things like phone chargers and UPS systems battery backups need a special part called an inverter. An inverter changes DC power to AC power. This article shows you how to […]
Simple Power Bank Circuit for Charging Mobile Phones
This article shows you how to build your own portable phone charger, like the ones you can buy at the store. This is a great way to keep your phone charged when you are out and about. These chargers come in all sizes, from small ones that fit in your pocket to bigger ones that […]
Simple Small Amplifier Circuit Using Transistors
The simple small amplifier circuit using transistors functions, as a basic audio amplifier designed to amplify weak signals and enhance the audio experience particularly in car radios. Let us find out into the operational details of this circuit: Circuit Working: Parts List: Category Component Quantity Resistors 100k 1/4W CFR 1 1k 1/4W CFR 1 Capacitors […]
Simple High Current Battery Charger Circuit
This high current battery charger circuit is a simple yet effective with automatic cut off at a preset voltage. The TIP35 transistor acts as a voltage follower ensuring that the charging voltage is stable and constant making it suitable for charging high capacity lead acid batteries. What is a High Current Battery Charger Circuit: A […]
Simple Infrared (IR) Remote Control Circuit
This article shows you how to build a circuit that lets you control your appliances like lamps, TVs, fans with any remote control. You can use an old remote you have lying around the house. This is a fun project that makes using your electronics even more convenient. What is a Infrared IR Remote Control […]
Adjustable DC Motor Speed Controller Circuit with Reverse Forward Facility
This post shows you how to build a circuit to control the speed and direction of a DC motor. It uses a common chip called the IC 555 and a special switch. A knob lets you adjust the speed by controlling how much power goes to the motor PWM. A switch lets you change direction […]