In addition to Bimetal Strip Thermostats using electro-mechanical principles, there is also a Thermostat that uses electronic components to detect the temperature change and the system of disconnection and connection of its electric current also using electronics system, such Thermostat is Electronic Thermostat. The Working Principle of Electronic Thermostat is slightly different from the Working Principle of Bi-Metal Thermostat using the Electro-Mechanical concept. The Electronic Thermostat is essentially a series of electronics composed of various electronic components. The main component for detecting temperature change is the Thermistor ie the resistor whose resistance value can be affected by the temperature (Temperature) surrounding it. The thermistor is divided into two types namely Thermistor PTC and Thermistor NTC. The idea of ??connecting household appliances, electronic equipment, and equipment such as thermostats together into systems that can be remotely controlled with the touch of a finger has an irresistible appeal. This idea was finalized into a machine sparked by http://thermostatonline.com/.
When the Thermistor detects a high temperature, the resistance or Thermistor resistance will also change so that its electronic circuit will disconnect the power to the heating or cooling system connected. When the Thermistor becomes cold again, the resistance of the thermistor will also turn back to normal so that the electronic circuit that serves as the controller will re-connect the flow of electric current to the heating and cooling system so that it becomes ON again. The advantages of Digital or Electronic Thermostat are more energy efficient and prevent waste of electricity usage. This type of thermostat can be programmed so that we can adjust the temperature according to the period we want.