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Operational Amplifier Basics: Working Principle and Amplifier Circuit21 March 2025
Operational amplifier (referred to as "op amp") is a circuit unit with very high magnification. In actual circuits, a certain functional module is usually combined with a feedback network. It is an amplifier with a special coupling circuit and feedback. The output signal can be the result of mathematical operations such as addition, subtraction, differentiation, and integration of the input signal. Because of its early application in analog computers to realize mathematical operations, it was named "operational amplifier".
What is Tantalum Capacitor: Structure, Failure and Application Guide14 April 2022
Hello everyone, I am Rose. Welcome to the new post today. Today I will introduce tantalum capacitors to you. This article includes its structure, production process,failure mode, precautions and application guide and so on.
Everything You Need to Know about RF Chip14 January 2026
RF chip is one of the most important cores of cell phone terminals. The RF chip is responsible for RF transceiver, frequency synthesis, and power amplification.
Semiconductor Cleaning: Processes, Methods and Reasons20 April 2022
Hello everyone, I am Rose. Today I will introduce semiconductor cleaning to you. Including how to clean semiconductor, what method we use to clean semiconductor and why we need to clean semiconductor.
RVDT(Rotary Variable Differential Transformer) Basics02 February 2021
The Rotary Variable Differential Transformer or RVDT is regarded as the transformer that detects the angular displacement of the conductor. That is the kind of electromechanical transducer that gives the angular displacement of the input equal to the linear output.
A/D Converter: Basic Principle and Types06 November 2020
An analog-to-digital converter, or A/D converter, or ADC for short, is usually an electronic component that converts an analog signal into a digital signal. A typical analog-to-digital converter converts an input voltage signal into an output digital signal.
Introduction to Electrochemical Sensors19 November 2025
Electrochemical sensors are made on the basis of ion conduction. According to the formation of their electrical characteristics, electrochemical sensors can be divided into potential sensors, conductivity sensors, electricity sensors, polarographic sensors, and electrolytic sensors.
Introduction To Different Types Of Relays10 November 2020
A relay is an electrical control device. It has an interactive relationship between the control system and the controlled system. Usually used in automated control circuits, it is actually an "automatic switch" that uses a small current to control the operation of a large current. Therefore, it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit.
The Comprehensive Guide to MOSFETs: Principles, Types, and Parameters (2026 Edition)16 January 2026
Hello everyone, I am Rose. Today I will introduce MOSFET to you. Metal-Oxide Semiconductor Field Effect Transistor (MOSFET) is a field effect transistor that can be widely used in analog circuits and digital circuits
What is a Knock Sensor?08 January 2026
Hello everyone, I am Rose. Welcome back to the new post today. I will introduce Knock Sensor to you. The knock sensor is a small "listening" device in or on the engine that detects abnormal vibrations and sounds coming from the engine block.
0 Ohm Resistor Explained10 December 2021
This article mainly introduces the resistance value of 0 ohm resistor, over-current capability, special high rated current 0 ohm resistor and PCB board designed with 0 ohm resistor.
Millimeter Wave Radar: Advantages, Types, and Applications18 October 2021
Millimeter wave radar is a radar that works in millimeter wave. Millimeter waves refer to the 30 ~ 300GHz frequency domain (the wavelength is 1 to 10 mm). The wavelength of millimeter waves is between microwaves and centimeters, so millimeter wave radar has some advantages of microwave radar and photoereta.