In this article I have explained the main differences between op amp and comparator, and try to understand why op amps are not ideally suited to be used like compartaors. We also learn the main advantages of using compartaor ICs in comparator applications. Basically, you will find many electronic lectures or publications talking about using […]
Newly Updated Circuit Projects:
Telephone Transmitter Circuit
In this post I have explained how a landline telephone can be rigged up wirelessly with a small transmitter circuit, enabling easy tapping of the telephone, by transmitting the conversations to a distant FM radio appropriately set up for the listening. Circuit Description The circuit diagram for the Telephone Transmitter can be witnessed in the […]
Municipal Water Supply Sensor Controller Circuit
In this post I have explained a simple water sensor with pump starter circuit for switching a pump motor during municipal water supply periods. The idea was requested by Mr. Hitesh Thapa. Technical Specifications Is it possible to make a automatic water pump starter which turns On only when the city supply line has water […]
48V Solar Battery Charger Circuit with High/Low Cut-off
In this post I have explained a 48V solar battery charger circuit with high, low cut-off feature. The thresholds are adjustable through individual presets. The idea was requested by Mr. Deepak. Technical Specifications Hi Swagatam, Thank you for UPS relay circuit. I am trying to build it very soon. I will update you the result […]
Simple SCR Battery Charger Circuit
In this post I have explained a simple yet accurate SCR triggered battery charger circuit which can be used effectively for charging all types of battery, which includes, lead acid battery, Ni-Cd battery banks, Li-Ion battery, etc. This SCR charger can be seen implemented in most automobile garages, and is very popular among auto mechanics, […]
How to Check a MOSFET Using a Digital Multimeter
In this post I have explained how to test mosfets using multimeter through a set of steps, which will show help you to accurately learn the good or faulty condition of a mosfet Mosfets are Efficient but Complex Devices MOSFETs are outstanding devices when it comes to amplifying or switching of various kinds of loads. […]





