Interested to make an accurate electronic thermostat for your refrigerator? The 3 unique solid state thermostat designs I have I have explained in this article will surprise you with their “cool” performances. Design#1: Introduction The unit once built and integrated with any relevant appliance will instantly start exhibiting an improved control of the system saving […]
Circuits
3 Accurate Infrared Intruder Alarm Circuits using Photodiodes
In this post I have explained 3 simple yet accurate infrared intruder alarm circuits using an infrared transmitter and an infrared receiver module. The transmitter and the receiver photo diodes used in the two modules are aligned in line at a distance of around 2 meters within the restricted area. When a burglar tries to […]
2 Simple Voltage to Frequency Converter Circuits Explained
A voltage to frequency converter circuit converts a proportionately varying input voltage int a proportionately varying output frequency. The first design is using the IC VFC32 which is an advanced voltage to frequency converter device from BURR-BROWN specifically designed to produce an extremely proportional frequency response to the fed input voltage for a given voltage […]
2 Simple School Bell Timer Circuits Explained
In this article I have explained two very useful school bell timer circuits which can be used for ringing school bell automatically for each period as per the set time duration. The first circuit is designed using a handful of IC 4060, and the second circuit concept is configured around the IC 4017. I have […]
2 Simple Milliohm Meter Circuits [Measure Low Resistances below 1 Ohm with these Circuits]
The low resistance measuring circuit I have explained below can be used for measuring all milliohm resistances below 1 ohm with extreme accuracy. The resistance to be measured can be as low as 0.01 ohm or 10 milliohm. The output of the circuit converts the resistance value to exactly equivalent volts, which means the output […]
2 Simple Light to Frequency Converter Circuits for Transforming Light into Pulses
In this article we are going to see what is a light to frequency converter circuit, how it works, how to use it in a project, and its specifications. No matter which category you belong to, professional, hobbyist, engineer or student, modular components always reduce half of our headache while designing circuits. They eliminate the […]