The proposed AC mains 220 V load over current cut off circuit continuously monitors the current flowing through a connected load. If this current increases beyond a certain preset level, the circuit trips the relay and disconnects the load from the AC. Basic Working This 220 V over current cut off circuit is indeed subject […]
Newly Updated Circuit Projects:
Simple Ceiling Fan Regulator Circuit
A simple electronic ceiling fan regulator circuit using a triac and a diac is a common type of circuit which is used to control the speed of a ceiling fan. This circuit basically works using phase control principle, in which the voltage supplied to the fan motor is varied by controlling the firing angle of […]
Ding Dong Bell Circuit that Saves Electricity
This circuit goes beyond being a simple two-tone doorbell. Instead, it utilizes envelope modulation to produce an authentic ‘ding-dong’ chime sound. Additionally, it incorporates a power-saving feature, consuming zero power in standby mode. Circuit Diagram How the Circuit Works When SW1 is pressed, it triggers Q1 to power the remaining circuitry. IC1a serves as a […]
LED Light Wave Effect Generator Circuit
In this post I have explained a simple LED light wave effect generator circuit which will sequentially create a difference in brightness over a chain of LEDs, creating a chasing light wave kind of visual effect.
Motor Protection Circuits – Over Voltage, Over Heat, Over Current
In this post I have explained a few DC motor protection circuit from harmful conditions like over voltage and under voltage situations, over current, overload etc.. DC motor failures are commonly experienced by many of the users, especially in places where the relevant motor is run for many hours a day. Replacing motor parts or […]
Week Day Programmable Timer Circuit
In this post I have explained a couple of interesting timer circuits customized as per individual requirements. The first one is a kind of week/day programmable timer circuit for actuating a motor for a predetermined time only during certain selected days of the week, while the second timer circuit is for alerting a lecturer regarding the finish of the allotted time […]