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Solar Water Heater Circuit with Battery Charger

Last Updated on May 17, 2026 by Swagatam 24 Comments

water2Bheater

The proposed solar water heater with battery charger controller circuit explains a simple method of utilizing the excess solar energy from a solar panel for heating water in water tanks or swimming pools or poultry egg chambers. Normally the circuit also functions like an automatic solar battery charger, and simultaneously powers domestic electrical appliances. Understanding Solar Charging […]

Filed Under: Battery Charger Circuits, Solar Controller Circuits Tagged With: Battery, Charger, Heater, Solar, Water

Making a Multi-function Water Level Controller Circuit

Last Updated on June 12, 2019 by Swagatam 53 Comments

waterlevelcontrollertimercircuit

The following multi-function water level controller circuit post is based on the suggestions expressed by Mr. Usman. I have explained more about the requested modifications and the circuit details. The Circuit Suggestion: The concept of this circuit looks good. May I suggest a couple of other desirable features? 1) To protect the motor from potential overheating (or […]

Filed Under: Water Controller Tagged With: Controller, function, Level, Making, Multi, Water

Adding a Soft Start to Water Pump Motors – Reducing Relay Burning Problems

Last Updated on August 8, 2026 by Swagatam 142 Comments

In this post I have explained a few innovating and simple soft start circuit examples which may be implemented with heavy duty motors so that they are able to initiate with a soft start or a slow sluggish start instead of a sudden, bumpy start Why Soft Start is Crucial for Heavy Motors When heavy […]

Filed Under: Water Controller Tagged With: Adding, Motors, Pump, Soft, Start, Water

Simple Water Level Indicator Circuits (with Images)

Last Updated on June 1, 2026 by Swagatam 99 Comments

IC 4049 pinout diagram

A water level indicator is an electronic circuit which indicates the various levels of water inside a tank. This happens when rising or dropping water levels come in contact with the respective water sensors arranged step wise inside the water tank at different depths. In this post I have explained 2 interesting ways to make […]

Filed Under: Indicator Circuits, Water Controller Tagged With: Circuits, Images, Indicator, Level, Simple, Water

Cheap Semi Automatic, Tank Water Over Flow Controller Circuit

Last Updated on March 13, 2019 by Swagatam 76 Comments

simple water level controller circuit

The circuit presented here monitors the level of the water rising inside a tank and automatically switches OFF the pump motor as soon as the water level reaches the brim of the tank. The proposed tank water overflow controller circuit is a semi automatic device because it can only sense an overfill and switch OFF […]

Filed Under: Water Controller Tagged With: Automatic, Cheap, Over, Semi, Tank, Water

Timer based Water Level Controller Circuit

Last Updated on February 17, 2021 by Swagatam 56 Comments

CD 4060 based timer 9be8549fa77bb7793263 1 1

The explained circuit of a water level controller circuit is based on a adjustable timer circuit whose time delay is first adjusted to match the filling time of the tank, as the the tank fills, the timer delay also simultaneously lapses and its output switches OFF the water pump. Circuit Specifications Actually the circuit was […]

Filed Under: Water Controller Tagged With: Based, Controller, Level, Timer, Water

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