This small and Simple USB Lamp Circuit show how to make as easy night light using USB port from computer or laptop. To make this only few parts are needed: USB plug like one on phone charger. One LED it gives small light and does not use much power. One resistor it control how bright […]
Seven Segment Counter Circuit
Seven Segment Counter Circuit is one simple circuit. It count numbers and show on seven segment display. When we press button number goes up by one. It is very easy to make and good for learning how counting works in electronics. What is a Seven Segment Counter Circuit: Seven segment counter circuit is small electric […]
Simple Room Ionizer Circuit
In this Simple Room Ionizer Circuit, one machine can help clean air in room and it is called a room ionizer. It make small electric things called ions. These ions catch smoke, dust and bad things in air. Ionizer use special electric way to make these ions. Like when we press one side of balloon […]
Simple Passive Crossover Network Circuit for Loudspeakers
Think like music conductor who tell each instrument when to play. In speaker system a Simple Passive Crossover Network Circuit for Loudspeakers do same thing but with sound. Normal speaker are not made for just one piece but it have many parts each for different sound. Woofer make big boom sound, tweeter make small squeaky […]
Simple DC Over Voltage Protector Circuit
Main purpose of Simple DC Over Voltage Protector Circuit is to save electronic parts or circuits from damage when voltage from DC power source become too high. In many uses, case where stable and fixed voltage is needed this type of circuit are very useful. Circuit Working: Parts List: Category Component Quantity Preset 2.5k 1 […]
Amplifier Circuit using IC TDA2030
This article for Amplifier Circuit using IC TDA2030 talks about how to make 12 watt amplifier by using an IC. TDA2030 is very common IC for audio amplifier. This is one chip for audio power amplifier which is good for low frequency class AB use. Circuit Working: Parts List: Category Component Quantity Resistors 22k 1/4 […]