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What is a Surge Protection Device (SPD)?22 June 2021
A surge protection device (SPD), also called a surge protector, is an electronic device that provides safety protection for various electronic equipment, instruments, and communication lines. When a spike current or voltage is suddenly generated in the electrical circuit or communication circuit due to external interference, the surge protection device can conduct and shunt in a very short time, so as to prevent the surge from damaging other equipment in the circuit.
What is a Cell Phone Antenna?21 July 2021
Cell phone antennas are devices that receive signals on cell phones. Old cell phones have protruding antennas, and most new cell phones have been hidden in the fuselage.
Introduction to FinFET18 March 2021
The full name of FinFET is Fin Field-Effect Transistor. It is a new complementary metal oxide semiconductor transistor. The FinFET name is based on the similarity between the shape of the transistor and the fin.
What is a Water Level Indicator?19 February 2021
A water level indicator is a system that relays information back to a control panel to indicate whether there is a high or low water level in a body of water. A combination of probe sensors or float switches to sense water levels is used for some water level indicators.
Voltage Follower: Purpose, Working, and Circuits27 March 2025
An op-amp circuit is a voltage follower (also called a unity-gain amplifier, a buffer amplifier, and an isolation amplifier). This suggests that the op-amp would not supply the signal with any enhancement. This article addresses the voltage follower description.
LDR/Light Dependent Resistor: Working Principle, Types and Applications22 February 2021
In general, the control of lights and home appliances is manually operated and maintained on a number of occasions. However, due to the carelessness of human beings or unusual conditions, the process of controlling appliances may cause power wastage. We can use the light-dependent resistor circuit to control loads based on the intensity of light to overcome this problem. A device made of high-resistance semiconductor material is an LDR or a photoresistor. This article provides an overview of LDR, the light-dependent resistor circuit and its operation.
Schottky Diodes: Principle, Functions, and Applications30 March 2020
Schottky diodes are metal-semiconductor devices made of precious metals (gold, silver, aluminum, platinum, etc.) A as the positive electrode and N-type semiconductor B as the negative electrode. Schottky diodes are unidirectionally conductive and can convert alternating currents into pulsed direct currents in a single direction.
Beginners Guide to Precision Resistors10 April 2025
Precision resistors refer to resistors whose resistance value tolerance, thermal stability (temperature coefficient), and distributed parameters(distributed capacitance and distributed inductance) all meet certain standards.
How are Integrated Circuits produced?17 March 2020
An integrated circuit is a miniature electronic device or component with specific circuit functions. It is made through semiconductor manufacturing processes such as oxidation, photolithography, diffusion, epitaxy, and aluminum evaporation.
Solenoid Switch: Working Principle, Types and Applications03 February 2021
A solenoid switch is an electrical switch that is often used where a high current circuit, namely a starter motor circuit, is brought into operation with the aid of a low current switch. This switch switches a durable switch on to connect the vehicle's battery to the starter of the motor. A solenoid switch attaches the drive pinion to the starter until the ignition key is triggered. High performance, reliability, and longevity are the key characteristics of solenoid switches.
Lithium-ion Battery: Structure, Working Principle and Package14 March 2022
Hello everyone, I am Rose. Welcome to the new post today. Lithium battery is a kind of battery with lithium metal or lithium alloy as positive/negative material and non-aqueous electrolyte solution.
What Sensors does a Car Engine Have?28 March 2025
The engine sensor control system contains many types of sensors, such as temperature sensors, pressure sensors, position and speed sensors, oxygen sensors, and knock sensors, etc...