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5-Band Graphic Equaliser
This graphic equaliser uses low-cost op-amps. Good quality op-amps powered by a single voltage supply are readily available in the market. The op-amp should...
Lead-Acid Battery Charger With Voltage Analyser
Nowadays maintenance free lead-acid batteries are common in vehicles, inverters, and UPS systems. If the battery is left in a poor state of charge,...
Audio Noise Limiter
Audio noise can be annoying, especially if you are trying to listen to a very weak radio station. Peaks of unwanted background noise completely...
600V Super-Junction Power Modules Add New Package Options and Features to Simplify Motor Drives
September 21, 2017 -- New SLLIMM-nano intelligent power modules (IPM) from STMicroelectronics introduce extra package options and integrate additional components to accelerate development and...
Fuel Reserve Indicator For Vehicles
Here is a simple fuel reserve indicator circuit for monitoring the fuel level in vehicles. It gives an audio-visual indication when the fuel level...
SimulIDE For Simulating Electronic Circuits
Hobbies are fascinating stuff. Be it listening to music, reading novels or going to the gym, the pleasure they give is what makes these...
Smart Cellphone Guard
Smart cellphone guard presented here is in fact a simple infrared (IR) sensor alarm secures your cellphone with an invisible beam of light that...
CircuitMod: Modifying The Approach To Circuit Simulation
A dark, black screen. Symbols of a resistor, a capacitor and an inductor. A switch. Flashes of red, green and grey, and moving yellow...
Water Level Controller-Cum-Motor Protector
Many a time we forget to switch off the motor pushing water into the overhead tank (OHT) in our households. As a result, water...
Mobile Sniffer
This mobile sniffer circuit can detect the use of a GSM mobile in mobile-phone-restricted areas such as examination halls and other ‘do not disturb’...
