An automatic water level controller is a device which senses undesired low and high water levels in a tank, and switches a water pump ON or OFF accordingly to maintain an optimal water content in the tank. In this article I have explained 5 simple automatic water level controller circuits which can be used for […]
Controller
True MPPT Solar Controller Circuit using IC 555
Are you wondering if it was possible to build a very simple MPPT circuit using ordinary parts like IC 555 and IC 741, which would work most efficiently imitating a true MPPT? The answer is yes, it is possible, and we will learn about it details, in the following article. In this design I used […]
AC Motor Speed Controller Circuits using Back EMF
In this post I have explained a few circuit diagrams for building AC motor speed controller circuits using back EMF concept. Working Principle of AC Motors So now, all those home type appliances like electric drill machines, sander machines, sewing machines, food mixer machines, etc. they all are mostly using that AC motor which is […]
TPS24710/11/12/13 Hot-Swap Controller Circuit Explained
When we talk about hot-swap controllers, it is basically an electronic device or integrated circuit (IC) that allows you to the insert or/and remove circuit boards, modules or parts within an active system without having you to switch off the system. It regulates the surge current whenever a component is installed and protects from short […]
2 Simple Bidirectional Motor Controller Circuits Explored
A circuit which allows a connected motor to operate in clockwise and anticlockwise directions through alternate input triggers is called a bidirectional controller circuit. The first design below discusses a Full bridge or H bridge based Bidirectional motor controller circuit using the 4 opamps from the IC LM324. In the second article I have explained […]
2 Automatic Heatsink Temperature Controller Circuit
In this post we study about a automatic fan speed regulator circuit for controlling the temperature of a heatsink and from preventing the temperature to reach dangerous levels. This approach is to ensure safeguarding of the connected devices wit the heatsink. Written by: Preeti Das With the help of this circuit the speed of a […]





