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Design and Implementation of High Frequency Inverter for Printer Based on IR2110
13 April 2022
Hello everyone, I am Rose. Welcome to the new post today.In this article, the design of an independent inverter power supply based on SPWM technology is completed by combining the principle of the inverter circuit with the single-chip technology.
What is the Ripple of the Power Supply, How to Measure its Value, and How to Suppress it?
23 November 2021
Hello everyone, I am Rose. Welcome to the new post today. Ripple is a multi-dimensional clutter signal. It's a periodic signal that varies up and down around the output DC voltage, but the period and amplitude aren't fixed, and the ripples of different power sources alter with time. In addition, the waveform is different.
Introduction to Types of Motion Sensors
24 October 2025
Motion sensor refers to a device that detects the motion of an object or person, including gravity, linear acceleration, rotation vector, vibration frequency, etc. Motion sensors can be used to monitor device movements such as tilt, shake, rotation, or swing. Among them, the rotation vector sensor and the gravity sensor are the most commonly used sensors for motion detection and monitoring. Today we come to learn about various types of motion sensors, including accelerometers, tilt sensors, vibration sensors, PIR (passive infrared) sensors, and rotation sensors.
Introduction to Temperature Sensors
24 October 2025
The temperature sensor refers to a sensor that can sense the temperature and convert it into a usable output signal, which is the core part of the temperature measuring instrument. It's divided into 5 types and each type has unique working principles. Besides, some factors need to be noticed in the installation and using process. For the temperature sensor can accurately measure the ambient temperature, it's widely used in various fields and provide convenience for people's production and daily lives.
An Overview of Supercapacitors
20 October 2025
Supercapacitors, also known as electrochemical capacitors, electric double-layer capacitors, gold capacitors, and farad capacitors, are developed between the 1970s and 1980s, which is an electrochemical element that uses polarized electrolytes to store energy. The supercapacitor is different from the traditional chemical power supply. It is a power supply with special performance between the traditional capacitor and battery, which mainly relies on the electric double layer and redox pseudo capacitor charge to store electrical energy. However, no chemical reaction occurs during the energy storage process. This energy storage process is reversible, for which supercapacitors can be repeatedly charged and discharged hundreds of thousands of times.
What is RF Filter?
09 December 2021
Hello, I am Rose Welcome to the new post today. The radio frequency filter is a filter circuit made up of capacitors, inductors, and resistors that is used to filter the signal frequency in communication channels. The filter allows signals that meet a specific frequency to pass while suppressing unwanted frequency signals.
Introduction to Top Sensor Manufacturers in the World
15 February 2022
The modern industrial system cannot be separated from sensors. In this article, we will introduce you to 10 world-renowned sensor companies.
Hall Effect: Definition, Principle, Measurement Methods
08 November 2022
Hello, everyone. Welcome to the new post today. This post introduce hall effect and hall sensor. Including their definition, principles and measurement methods.
A Guide to AVR Microcontroller [PDF]
15 October 2025
AVR microcontroller is an enhanced RISC (Reduced Instruction Set CPU) high-speed 8-bit microcontroller with built-in Flash developed by ATMEL in 1997.
NPN Transistors and PNP Transistors
29 October 2020
NPN and PNP are two types of transistors. Transistors are semiconductor devices made of doped p-type and n-type junctions. This article mainly introduces the differences between this two kinds of transistors, the methods of distinguishing them, and the application of them.
Facial Recognition: Features, Working and Applications
02 September 2021
The broad sense of facial recognition includes a series of technologies for building a facial recognition system, including face image acquisition, face positioning, facial recognition preprocessing, identity confirmation, and identity search, etc… The narrow sense of facial recognition refers specifically to the adoption of the system for confirming or finding the identity of a human face.
How to Use an External Hard Drive?
24 June 2021
The external hard drive is a compact and portable hard drive storage which can be plugged in or unplugged at any time. It mainly uses USB or IEEE1394 interfaces. It can transmit data with the system at a higher speed. The IEEE 1394 interface transfer rate is 50-100 MB/s.