In this post we learn how to scavenge discarded microwave oven parts for making a useful soldering iron heat controller circuit which can then be used for maintaining controlled heat over a connected soldering iron tip ensuring safe soldering operations, that may be quite crucial and handy if you are working with SMD parts. By […]
AC Heater Control
Automatic Temperature Control with Fan Motor and Arduino
The project discussed here automatically senses the ambient temperature and adjusts the motor speed to keep the surrounding temperature under control. This automatic processing is done through an Arduino and a temperature sensor IC LM35. By: Ankit Negi OUR OBJECTIVE: 1). As soon as temperature of the surrounding increases beyond 25 degree Celsius (you can […]
Induction Heater for Labs and Shops
The post explains how to make small homemade induction heater circuit for laboratories and shops for carrying out small scale heating jobs such as melting ornaments, or boiling small quantity of liquids using electricity or battery The idea was requested by Mr. Suni and Mr. naeem Induction Heating in Labs and Jewelry Shops Our challenge […]
How to Design an Induction Heater – With Calculations and Working Formulas
The article explains a step by step tutorial regarding designing your own homemade basic induction heater circuit, which can be also used as an induction cooktop. Basic Induction Heater Concept You might have come across many DIY induction heater circuits online but nobody seem to have addressed the crucial secret behind implementing a perfect and […]
Free Energy from Induction Cooktop
The idea of acquiring free energy from induction cookwares using an external bifilar coil was suggested by one of the keen enthusiasts and a regular visitor of this blog. Let’s learn more regarding the details of this interesting free energy device, as explained by the author himself. WARNING: THIS CONCEPT ATTEMPTS TO VIOLATE THE “LAW […]
Make this Automatic Temperature Regulator – Detailed Instructions and Code
In this article we are going to construct a simple automatic temperature regulator circuit which will turn on the fan or any other gadgets connected to it, when the ambient temperature reaches a pre-determined threshold level. We are going to utilize DHT11 sensor and arduino for this project. By: Girish Radhakrishnan Overview The beauty of […]
Kiln Temperature Controller
A programmable sequential timer along with a triac dimmer is configured for making this kiln temperature controller circuit, further details are explained in the following article. The idea was requested by Mr. Joe. 220V Kiln Controller with Timer I’m hoping you have some time to have a crack at a design I’m after. I’ve been trying […]
Autoclave Heater Controller with Timer
In this article we learn how to make simple, accurate autoclave heater controller circuit with timer. The idea was requested by Mr. Rajjab. Technical Specifications This is Rajab Ali from AfghanistanWe need a circuit for controlling an autoclave for sterilization in hospital the machine works as. when starts cycle by pushing start button it should […]
Small Induction Heater for School Project
The post discusses a small induction heater circuit for school project and exhibitions, using a very ordinary IC 555 astable PWM circuit. The idea was requested by Mr. Anthony Technical Specifications For a school project i need to construct an AC induction cooktop and was wondering if you could help me put together a part […]
Heater Controller Using Push-Buttons
Controlling a heavy electrical appliance with push buttons can be extremely convenient since it allows a solid state approach for operating the parameter both ways up and down by mere push of the relevant buttons. Here we discuss a heat controller circuit using a set of push buttons and PWMs. Using a Digital Push Button […]
Make this Geyser Water Heater Timer with Automatic Switch OFF
In this post we study a simple water heater timer controller circuit which can be used in bathrooms for automatically switching OFF a geyser or a water heater unit after a predetermined time period as preferred by the user. The idea was requested by Mr. Andreas Technical Specifications Many of us when we need hot […]
Simple Thermostat Using Transistors
The electronic thermostat explained here can be used to control the room temperature by appropriately switching (turning on and off) a heating device. By: R.K. Singh Operational details of electronic thermostat The circuit employs a thermistor NTC (negative temperature coefficient) as the sensor device. – As long as the ambient temperature stays higher than the […]
Differential Temperature Detector/Controller
The circuit identifies and detects the temperature difference between two sensors and activates a relay when the temperature is not identical on these differently positioned sensors. By: Manisha Patel It’ll also enable you to detect a difference in temperature, although the temperature sensing devices can be set are discretely, using a potentiometer. Operational Details To […]