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An Overview of SD Card12 April 2021
The SD (Secure Digital) card is a new generation of memory devices based on semiconductor flash memory. Due to its small size, data transmission speed, hot-swap, and other excellent features, it is widely used in portable devices, such as digital cameras, tablets, and multimedia players, etc.
Toggle Switches: Features, Types and Applications23 January 2021
Toggle switch adopts integrated circuit technology and SMT appearance device technology to manufacture a new generation of photoelectric switch devices. It has intelligent functions such as delay, expansion, external synchronization, anti-interference, high reliability, stable working area, and self-diagnosis. This novel photoelectric switch is an active photoelectric detection system electronic switch that uses pulse modulation. The cold light source used is infrared light, red light, green light and blue light, etc., which can be quickly and without contact and damage Control the state and action of various solid, liquid, transparent, black, soft, smoke and other substances.
Why is 50 ohms?13 June 2022
Hello everyone, I am Rose.Welcome to the new post today. Today We will discuss why impedance is 50ohm, not 30ohm, 75ohm or 100ohm?
What Is An Intrinsic Semiconductor?03 November 2020
An intrinsic semiconductor is a single crystal made from a pure semiconductor through a certain process. Intrinsic semiconductors are semiconductors with complete crystal lattices without any impurities. Its conductivity is not affected by any impurities or lattice defects, and is only determined by the nature of the semiconductor material itself.
How to Distinguish MOSFET? Is it N-Channel or P-Channel?23 December 2021
Hello everyone, I am Rose. Today I will teach you how to define N-channel and P-channel in MOSFET. Metal Oxide Semiconductor Field Effect Transistor (MOSFET) is a basic component of modern electronic goods and is abbreviated as FET.
Basic Introduction to Film Capacitors22 October 2025
The film capacitor is also called a plastic film capacitor. It uses plastic film as the dielectric. Depending on the medium, there are many types of capacitors, such as electrolyte capacitors, paper capacitors, film capacitors, ceramic capacitors, mica capacitors, and air capacitors. Film capacitors are widely used in analog signal cross-linking, power supply noise bypass (reverse cross-linking), and other places.
Comprehensive Analysis of Switching Power Supply Circuits30 November 2021
Today we introduce the circuit and principle of switching power supply. This article mainly lists and analyzes the various functional circuits of the switching power supply.
Introduction to Potential Transformers21 September 2020
A potential transformer is a device used to transform voltage. The purpose to transform the voltage is mainly for measuring instruments, as the power supply of relays, measure the voltage, power, and energy of the line, or protecting the valuable equipment, motors, and transformers in the line when the line fails.
Tunnel Diode: Definition, Features and Tunneling Process25 August 2020
Tunnel diode, also known as Ezaki diode, is a crystal diode with tunnel effect current as the main current component. The tunnel diode is a semiconductor diode made of a mixture of gallium arsenide (GaAs) and gallium antimonide (GaSb).
Various Reasons for the Failure, Explosion and Burning of Tantalum Capacitors02 June 2022
Hello, Wish you have a wonderful day. Many clients frequently discuss tantalum capacitor explosions, particularly in switching power supplies, LED power supplies, and other industries. Tantalum capacitor burning or explosion is the most frustrating problem for R&D personnel, leaving them perplexed. Many R&D technicians are no longer willing to employ tantalum capacitors due to the risk of tantalum capacitor failure mechanisms. In truth, if we thoroughly comprehend the characteristics of tantalum capacitors, we can determine the causes of tantalum capacitor failure (burning or explosion). Tantalum capacitors aren't as frightening as they appear. After all, tantalum capacitors have a lot of advantages. The reasons for tantalum capacitor failure can be classified into two categories: tantalum capacitor quality issues and circuit design issues. The next article will provide you with a thorough introduction.
Introduction to Mass Air Flow Sensor15 September 2020
Mass air flow sensor is one of the important sensors of EFI engines. It converts the inhaled air flow into an electric signal and sends it to the electronic control unit (ECU). As one of the basic signals for determining fuel injection, it is a sensor that measures the air flow into the engine.
Diodes Tutorial: How to Test Diodes?22 October 2025
A diode is an electronic device made of semiconductor materials. The diode is one of the earliest semiconductor devices, and it is widely used, especially in various electronic circuits.