The proposed circuit can be used to alter the speed of one or more celing fans or bulbs up to a maximum power of 1000 watts by changing the volume of power applied from the load itself. The adjustment calibration is incredibly constant and steady on account of an exclusive polarization circuit which lowers the […]
Very Sensitive Clap Switch Circuit
Here we learn a simple yet very sensitive and powerful clap switch circuit, which can be used for operating a relay and switch ON/OFF any electrical load or appliance. This is a unit very sensitive to sounds and disturbances, received within a microphone capsule and refined, take action on a relay. It could be arranged […]
Dynamic MIC Preamplifier Circuit
In this post we discuss a powerful preamplifier circuit for microphones, which can be used for amplifying an electret MIC signal, using just a couple of BJTs. Microphone signals will often be too weak to get carried to units for example mixing consoles and recording devices with sufficient strength. Preamplifiers boost a microphone signal to […]
Programmable Plant Watering Timer Circuit
In this post we learn about an automatic programmable 7 day plant watering system circuit as requested by Mr. Michael. Here’s the requested as given in the below paragraph Hello admin, The timing circuit must be powered with 9v and its function will be to switch on and off a 9v supply to a microcontroller […]
IC 7812, 7805 Current Booster Circuit
Current in all 78XX ICs such as 7812, 7805, 7824 etc is internally restricted to 1 amp only. In this post we learn how to boost current from these ICs using an outboard transistor circuit with a 78XX circuit. There are several options of pulling extra current from a 78XX type voltage regulator lC than […]
Automatic 12V Battery Charger Circuit
The set up makes it possible to make an automatic 12V battery charger of excellent level of quality through which you are able to recharge batteries of 1 2 Volts for car, and dry batteries employed in the systems of alarms. Its functioning seemingly automatic considering that, whenever it’s plugged into a battery, it will […]