Pinout Specifications of the IC TDA1020 Pin#1: Negative supply (substrate) Pin#2: Output power stage Pin#3: Positive supply (VP) Pin#4: Bootstrap Pin#5: Ripple rejection filter Pin#6: Input power stage Pin#7: Output […]
220V Fan Regulator Circuit
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 […]
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 […]
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 […]
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 […]
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 […]