Hello friends, today we will discuss about a very interesting high voltage solar panel battery charger circuit. Many people ask how to safely charge battery from high voltage PV panels like 100V to 450V. So today I am explaining the complete step by step working of this circuit. Power On and Initial SCR Latching Assuming […]
Automatic
Climate Dependent Automatic Fan Speed Controller Circuit
The following circuit of a temperature or climate controlled automatic fan speed regulator circuit was requested by one of the followers of this blog Mr.Anil Kumar. I have explained more about the proposed design. The Design As can be seen in the given diagram, a very simple concept has been implemented in the proposed design of a climate controlled […]
Automatic Door Controller Circuit Diagram using a Single Push-Button
This door controller circuit works in this way: Initially the door is in the closed state. When a push button is pressed, the door begins opening until it reaches the end of the course. When it reaches the end, it automatically reverses its direction and now the door begins closing. It keeps moving until it […]
Automatic Curtain Open-Close Circuit
We are happy to share an automatic curtain control circuit kindly provided by Mr. August Peterson. This design helps to open and close curtains by sensing light from the surroundings. It uses an LM393 comparator, a solar panel as a light sensor and a 24V motor. The circuit makes the curtain open in the morning […]
Automatic Torque Optimizer Circuit in Electric Motors
In this article I have explained a circuit design which will help to optimize the torque of an induction motor used in electric vehicles, by analyzing its current consumption. Using a IC 555 Inverter for Toque Control The design is specifically intended for electric vehicles which are designed to work with induction motors, and therefore here […]
SMS Based Pump Controller with Automatic Dry Run Shut Off
In this post I will show how to construct a SMS based water pump controller with automatic shutdown of pump when no water flow through the pump is detected. We will also construct another much simpler automatic dry run preventer circuit without GSM in the next half of the article. What is Dry Run in […]