White LEDs are very common now for lights. They are used in electronics, car displays and home lights because they save power, last long and work well. But for long life and best work the power must be managed well. IC TPS61161A is special chip which is the LED driver for this job. It can […]
LED and Lamps
Designing a Simple 7W LED Bulb Circuit
LED lights last long and use less power so more people like them now. This article for Designing a Simple 7W LED Bulb Circuit shows how to make and use a 7W LED bulb circuit. Parts needed for this circuit are 230V AC power, MOV, capacitors, resistors, bridge rectifiers, Zener diodes. Be careful! This circuit […]
Simple Adjustable Brightness Control Circuit for LEDs
LEDs (light-emitting diodes) are used in many things. They are strong, work well and can be used in different ways. In things like decoration or signals, changing LED brightness is important. This Simple Adjustable Brightness Control Circuit for LEDs uses BC547 NPN transistor, resistors, one preset (variable resistor) and a white LED to change brightness. […]
Simple Arduino-Powered Running LED Circle Circuit
Making nice looking projects help learning and fun in electronics. Simple Arduino-Powered Running LED Circle Circuit is one easy project. It uses Arduino to control LEDs in a circle. This project is simple and it teaches coding, circuit making and LED control. A 10k pot changes LED speed makes it fun to use. Code: Code […]
Simple DIY Guide to a USB Desktop Lamp Circuit
Making USB lamp by ourselves is an fun hobby. We learn electronics by using hands and be creative. This circuit is good project for beginner or anyone who want to learn circuit. This Simple DIY Guide to a USB Desktop Lamp Circuit is a useful project to learn basic about electronic. USB lamp uses power […]
Simple Arduino LED Dimmer Circuit using PWM
This post show how to make a Simple Arduino LED Dimmer Circuit using PWM. PWM changes voltage by changing square wave duty cycle. It changes duty cycle to make LED more or less bright. More power means more brightness. Coding: Circuit Working: Parts List: Component Quantity Resistor 220Ω 1/4 watt 1 10k 1/4 watt 2 […]