Smart Vehicle Headlight Brightness Controller Circuit is a cool auto system, it changes headlight brightness auto by checking outside light and also, it helps driver see better and safe at night or in tunnel. Circuit uses photo-transistor, potentiometer, diode, relay and audio transistor to check light and switch high and low beam easily. Circuit Working: […]
Transistor Circuits
Simple Car Headlight Timer Circuit using Transistors
Simple Car Headlight Timer Circuit using Transistors is cool design which keeps car headlights ON for 1.5 minutes after engine is OFF. Also, it is very useful in dark place which gives light for short time. Circuit uses easy parts like transistors, resistors, capacitor, relay and few more and these all work together for timing. […]
Car Turn Signal Circuit with Chasing Effect
Car Turn Signal Circuit with Chasing Effect is important project for electronic, in which it shows if driver turn left or right; also this circuit make lights blink one by one like in new cars. Moreover, it uses two main parts: 555 timer IC and CD 4017 counter IC. First IC1 make blinking signal and […]
3 LEDs Battery Status Indicator Circuit
To begin with, battery status circuit is very useful in electronics systems, it helps keep battery healthy and working good in devices. 3 LEDs Battery Status Indicator Circuit is simple but works well and it shows battery voltage using three lights and each LED shows different voltage. Also, we can see if battery is low, […]
150 Watt Audio Amplifier Circuit using Transistors
Amplifiers play a useful and important role in audio systems, as they give power to speakers and keep sound good; also, this 150 Watt Audio Amplifier Circuit using Transistors gives 150W output. Moreover, it uses two Darlington transistors like TIP142 and TIP147 and it is good choice and works well with low cost and is […]
Class AB Stereo Amplifier Circuit
Audio amplifier is useful in electronics and it makes weak sound signals strong to run loudspeakers. Class AB Stereo Amplifier Circuit are special as they mix Class B which is for good power use and Class A which is for good sound features. Also, this article show a simple Class AB stereo amplifier which explains […]