This power supply functions with a broad input voltage range from 90 to 265 V AC and produces a dual output in the form of 5 V / 2.5 A, and 14.5 V / 1 A. The Circuit Layout The great aspect of this source is its minimal power consumption, optimized power consumption in idle […]
Monitor
AC 220V Over Current Monitor and Cut OFF Circuit
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 […]
Office Call Bell Network Circuit with LED Monitor
In this post I have explained an office call bell network circuit for office complexes which could be used for calling and monitoring office member’s attendance and response from the particular intended office chamber. The idea was requested by Mr. Rajib Banerjee Technical Specifications Need a perfect useable circuit idea for Ringing the Bell as […]
Make an LED AC Voltage Indicator Monitor Circuit
The LED AC mains voltage level indicator is a circuit that can be used for displaying and monitoring the instantaneous voltage level of any 220 V or 120 V mains home AC input, through a correspondingly rising and falling LED bar graph. A simple construction and accurate result are the main features of this tiny […]
Child Crying Monitor Circuit using Power Line Communication
In this child crying monitor circuit when the baby wakes up in their room, the parents are immediately notified, even if they are in another room of their home. A sensor detects the crying sound accompanying the wake-up. After appropriate processing, it sends a signal through the 220V power lines. The receiver, connected to any […]
Extremely Low Frequency (ELF) Radiation Monitor Circuit
ELF stands for Extremely Low Frequency, which is an electromagnetic radiation generated by most of out household electrical equipment. Regarding the effect and severity of ELF fields on human health, debate remains heated. However, I believe there is enough data for us enthusiasts to adopt a conservative stance on the level of exposure we must […]