This simple circuit can be used for detecting 50 Hz current inside a conductor without physically connecting with the conductor. You just have to bring the L1 coil near the […]
Ferrous, Non-Ferrous Metal Detector Circuit
The function of this adsorption type metal detector is to indicate the presence of ferrous and non-ferrous type metals. Its functionality depends on the absorption of magnetic energy. An inductor […]
220V Touch Dimmer Switch Circuit with 4 Step Control
The proposed 4 step touch dimmer circuit can be used for dimming lights in 4 discrete steps using finger touch operations, and also fan seed can be switched up down […]
Switching Lights ON/OFF from Different Locations
More often we need to switch an electric light or an electronic apparatus from various parts from the same building. A particular instance for this is hotel where this switch […]
High Power Temperature Regulator using SCR
The post details a high current, high power temperature regulator circuit using SCRs, which can be used for switching OFF a load at a predetermined temperature level Without the special […]
Discotheque Music Level Indicator Circuit
This is a novel music level indicator, ideally suitable for using in a place like discotheque. This indicator is made of eight columns of eight LEDs are being placed at […]