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All You Need to Know about Ultrasonic Sensors25 October 2025
The ultrasonic sensor is a sensor that converts ultrasonic signals into other energy signals. It consists of 4 parts: a transmitter, a receiver, a control part, and a power supply. For ultrasonic probes that can be made from different materials, we should learn about their performances before usage, which includes the working principle, working process, sensitivity, and directivity. Based on the properties of ultrasonic waves, ultrasonic sensors are widely used in communication, medical, and home appliance.
An Overview of Linear Integrated Circuits23 October 2025
A linear integrated circuit is an integrated circuit based on an amplifier. The meaning of "linear" used to indicate that the response relationship of the amplifier to the input signal is usually linear.In this essay, we’ll first introduce the development history of linear integrated circuit. And then the production process and the high-frequency technology are discussed in detail. The following two parts mainly talk about the linear integrated circuit types and forms. And the final chapter analyzes the two typical bipolar linear integrated circuit一 Lm386 and 34063.
Basic Introduction to Memristor12 January 2021
Memristor is a circuit device that expresses the relationship between magnetic flux and electric charge. The memristor has the dimension of resistance, but unlike resistance, the resistance of the memristor is determined by the charge flowing through it.
What is an Accelerometer Sensor?20 April 2021
An accelerometer sensor is a sensor that can measure acceleration. It is usually composed of masses, dampers, elastic components, sensitive components, and adaptive circuits. In the process of acceleration, the sensor obtains the acceleration value by using Newton's second law, measuring the inertial force on the mass block. According to the different sensitive components of the sensor, common accelerometer sensors include capacitive, inductive, strain gauge, piezoresistive, piezoelectric and so on.
What is Semiconductor Package?06 December 2021
Semiconductor package is the process of assembling integrated circuits into chip final products. Simply put, it is to put the integrated circuit die (Die) produced by the foundry on a substrate that plays a supporting role, lead out the pins, and then fix the package into a whole.
How to Design Reliable High-Side Switching Circuits with P-Channel MOSFETs?22 July 2025
This article provides a comprehensive guide to designing reliable high-side switching circuits using P-channel MOSFETs, drawing from a real-world failure case shared by a Reddit user. The main issue identified was that the user's 48V system damaged the MOSFET because the gate-source voltage exceeded the device's ±20V limit (reaching -48V), and the article offers complete solutions including proper MOSFET parameter selection, using Zener diodes to clamp gate voltage, optimizing driver circuit resistor values for faster switching, and adding flyback diodes for inductive load protection, serving as a practical design roadmap for beginners in power switching applications.
Introduction to MSP430 Microcontroller26 December 2025
MSP430 microcontroller is a 16-bit ultra-low power, RISC mixed-signal processor marketed by Texas Instruments (TI) in 1996.
Filters Explained: Principles, Parameters and Application Guide09 April 2025
A filter is a frequency selection device that allows specific frequency components to pass through while significantly attenuating other frequency components. This article provides a comprehensive introduction to the basic concepts, main parameters, classification, operating principles and precautions for the use of filters.
What is a 555 Timer?09 April 2025
555 Timer is an integrated circuit chip that is often used for timers, pulse generators, and oscillating circuits. 555 can be used as a delay device, a trigger, or a starting resonator element in a circuit.
AC Contactor: What is Self-Locking?01 March 2022
AC contactors often use three arc extinguishing methods: double-break electric arc extinguishing, longitudinal seam arc extinguishing and grid arc extinguishing. It is used to eliminate the arc generated by the moving and static contacts during the opening and closing process.This article mainly introduce the principle of AC Contactor self-locking.
What is RF Power Amplifier?08 November 2025
Hello everyone, I am Rose. Today I will introduce RF Power Amplifier to you. The radio frequency power amplifier (RF PA) is a critical component of many wireless transmitters, and its significance is self-evident.
SRAM vs DRAM: Key Differences and Applications Guide04 June 2026
Compare SRAM Chips and DRAM in 2025. Discover key differences in speed, cost, and applications to choose the best memory for your system's needs.