In electronics, sensors are the devices or modules or detectors or subsystems used to detect and respond to electrical and optical signals. Sensors can covert physical quantities like temperature, humidity, speed, etc into an electrical signal and send the information to the other electronic devices like the processor. Sensors are classified into various types to measure temperature, capacitance, heat, resistance, etc. They are a temperature sensor, proximity sensor, accelerometer, touch sensor, … [Read more...]
What is RGB LED : Circuit & Its Working
The term LED stands for Light Emitting Diode. In electronic circuits, the LED is a type of PN-junction semiconductor diode, which can emit light when current flows through the circuit in the forward direction. This indicates whether the electronic device is working or not. LEDs are widely used in various applications such as in cars, bikes, home appliances, offices, lighting, mobiles, televisions, etc. Usage of Multi-colored LEDs in the device reduces, cost, power and emits more than one colored … [Read more...]
What is Cascode Amplifier : Circuit & Its Working
Cascode is a technique implied to improve the performance of the analog circuits. The same technique can be applied to transistors and the vacuum tubes to make the circuit better performance-wise. The word cascode is initiated in the year 1939 by Frederick Vinton Hunt's and Roger Wayne Hickman's article during the discussion of voltage stabilizer applications. The discussion was about to propose a method to replace the pentode by cascoding two triodes. In cascoding, two transistors are used e … [Read more...]
What is Memristor : Construction & Its Working
Resistors, Inductors, and Capacitors are considered as the basic components of electronic systems. Further, the research has been carried out by Leon Chua in the year 1971. He was a professor at UC Berkely. He was always enthusiastic about knowing why electronic devices or systems are restricted only to linear characteristics. He carried out researches and studied non-linear characteristics of these basic elements and added the fourth element known as a memristor. Because resistors define the … [Read more...]
What is a Varactor Diode : Working & Applications
In the digital electronic circuits, one of the basic essential devices is diodes. A diode consists of two terminals. These two terminals connected to the supply results in conduction. The way the terminal sare connected makes it classified as a forward-biased diode or reverse-biased diode. In forward bias, the diode allows the current to flow through it. During reverse bias, it blocks the flow of current. This reverse biasing is used in the case of the varactor diode. Based on the c … [Read more...]
What is Schmitt Trigger : Circuit & Its Working
A comparator circuit with a large gain of open-loop requires a small amount of noise to trigger the circuit. If such comparators are used as zero-crossing detectors and get affected by false triggering leads to unnecessary problems. This may lead to the false indication of zero crossings of the noise signal rather than the actual signal. This unnecessary switching of levels can be avoided by using a circuit known as Schmitt trigger. This circuit was invented by the scientist in America otto H. … [Read more...]
Zener Breakdown and Avalanche Breakdown
A diode is an electronic component that consists of two electrodes. These two electrodes are the positive electrode and the negative electrode. These diodes are composed of semiconductor materials like germanium, silicon, and selenium. The most important property of diodes is that they are capable of conducting current in one direction only. Diodes are used as voltage regulators, switches, rectifiers, etc. A PN junction diode is a type of diode that has a negative side (n) and a positive side … [Read more...]
What is a Solar Pump : Working & Its Applications
The impact of low carbon emission on the environment is now evident much more than it was before. Utilizing renewable sources of power like solar energy will get a lot of impetus in days to come. Irrigation through pumping is a must for our agriculture growth. By using solar energy for pumping we can grow food without harming our environment. It may be added that India being a tropical country has an abundance of sunshine, which, can cost-effectively be used for generating power to meet our … [Read more...]
What is an Electrostatic Precipitator & Its Working
There are a lot of industries that generate various waste particles while carrying out various manufacturing processes. One such type of waste is particulate matter. Such type of waste will have to be removed before the gases are released into the environment. Otherwise, they may pose a serious threat to the environment and also cause various health hazards like lung infection and bronchitis. Fine elements having a size of fewer than 2.5 microns and these are difficult to remove. They cannot be … [Read more...]
What is Circuit Switching : Types & Its Characteristics
Circuit switching is one of the techniques involved in switching. In the field of communication and networking, there is a requirement of transmitting data all over the world. To transfer the data the basic step is to find a route. There are multiple ways or we can say paths to transfer the data. To choose the best possible path so that the data can be routed efficiently is defined as Switching. Multiple devices should be connected which can be switched to transmit the data. The connection can … [Read more...]