Transistor Based H-Bridge Motor Controller Circuit controls DC motor spin both ways like clockwise, anticlockwise. The circuit helps control speed and direction by easy switch method. Name “H-Bridge” comes from shape like letter H which has 4 switches. In this post circuit is 4-transistor H-Bridge. Circuit is good for robotics, automation and other motor projects. […]
Motor Driver Circuit using IC TC4424
Motor Driver Circuit using IC TC4424 chip good for DC motor control. It drives 2 MOSFETs, works fast and only few extra parts are needed. Circuit is easy to build and can control motor spin direction. It power 10 to 18V DC which depends on motor. Motor current must be under 100mA. Circuit Working: Parts […]
Simple Mains Powered LED Light Circuit
Simple Mains Powered LED Light Circuit runs on 230V AC mains. It uses capacitor dropper to limit the current. LEDs in series-parallel are cheap and easy for mains lighting. They are with bright white light and no big transformer. It is good for low power light needs. Circuit Working: Parts List: Component Type Value/Specification Quantity […]
Simple Time Delay LED Circuit using Transistor
This article is about Simple Time Delay LED Circuit using Transistor where the LED lit after a short wait. The circuit needs transistor, capacitor and few resistors for delay. It is good for power light, warning light and timing project. It work with 10V DC and fits many electronics. Circuit Working: Parts List: Component Specification […]
Battery Operated Automatic Emergency Light Circuit
Automatic emergency light use battery and give light when power is gone. Lamp turns ON itself when main power fails and is good for home, office or anywhere which need extra light. It is best to use 6V lead acid battery or 5×1.2V NiCd cells. The design for Battery Operated Automatic Emergency Light Circuit is […]
Simple Relay Based Lamp Flasher Circuit
Simple Relay Based Lamp Flasher Circuit is good for indicators, warning lights and in anything that need attention. Circuit uses relay, resistor, capacitor to blink light and does not need any complex parts. It runs on 12V and is easy for beginners to learn electronics. Circuit Working: Parts List: Component Specification Quantity Resistor 220Ω 1W […]