When a fuse is energized, its own resistance converts electrical energy into heat, causing the melt to heat up. At the same time, the heat generated by the current also radiates to the surrounding environment through the melt and shell, and dissipates heat through convection and conduction. When a fuse passes through the allowable working current, the heat emitted and generated reaches a balance, and the heat does not accumulate in the melt, causing the temperature of the melt to rise. Therefore, the fuse will not reach its melting point and blow. When the current passing through the fuse reaches a certain value, the heat converted from electrical energy increases, and the heat dissipation rate cannot keep up with the heating rate. This heat gradually accumulates on the melt, causing the temperature of the melt to rise. When the temperature reaches the melting point of the fuse, the fuse begins to melt and continues to absorb heat, further melting into a liquid state. Subsequently,
With the rapid development of modern technology, a large number of products can only be integrated into our daily lives, and the broom is one of them. As a smart home product, floor sweepers are not uncommon in first tier cities in China. The working principle of a floor sweeper is not too difficult to understand, mainly relying on the drive of internal small motors to provide power. Due to unstable voltage or jamming during operation, the motor may encounter problems such as rotor blockage, overload, or even burning out. So the internal motor must be designed with corresponding protection circuits to ensure its reliability and stability of operation. There are many types of protection methods for small motors inside the sweeping machine. Previously, bimetallic temperature controllers were commonly used. When the motor was working, if the coil temperature increased, the circuit would be disconnected, and after the temperature decreased, it would be connected again. However, this m
Nowadays, cars generally come with USB 3.0 ports. In addition to overcurrent and overvoltage protection, sensitive electronic devices using high-speed interfaces such as USB and HDMI also require electrostatic discharge (ESD) protection. Three different types of circuit protection devices can help avoid these potential destructive events. PolySwitch polymer positive temperature coefficient (PPTC) devices can provide self-healing protection in USB applications. Placing the PolySwitch PPTC device on the VBUS port of the USB power supply can limit the current during short circuit events, help prevent damage caused by sudden short circuits, and help achieve UL60950 compliance. The design of USB 3.0 uses circuit protection devices to help prevent overcurrent (PTTC, left) and overvoltage (PolyZen, right) damage at the power port, as well as ESD (SESD device) events at the data port For overvoltage protection in USB 3.0 applications, PolyZen devices use a hybrid approach that integrate
In circuit applications, the application range of diodes is becoming increasingly widespread, among which TVS diodes and voltage regulator diodes are more common. Many people are not very clear about these two. Today, the editor leads everyone to re understand them. From a definition perspective, TVS diode is an efficient circuit protection device developed on the basis of voltage regulator technology. Its circuit symbol and appearance are the same as ordinary voltage regulator diodes; Zener diode, also known as Zener diode, refers to the phenomenon of using a pn junction to reverse breakdown state, and its current can change over a large range while the voltage remains basically unchanged, making it a diode that plays a stabilizing role. (Related reading: Principles and Introduction of Transient Suppression Diodes (TVS)) In principle, when the two ends of a TVS tube are subjected to instantaneous high-energy shocks, it can suddenly reduce its impedance at a very high speed (up t
1. Self recovery fuses are used in conjunction with lightning protection components at the power input end for lightning protection and overcurrent protection applications: In this application, the main purpose is to avoid overvoltage damage to related equipment caused by power voltage fluctuations and lightning current interference. (Related reading: What are the application fields of self recovery fuses?) 2. The application of self recovery fuses in multi branch power supply systems with a single power supply: In this application, it can solve the problem of the entire system being paralyzed due to damage to a single device. In this system, WHPTC can solve the problem of one device (such as a single user in a building intercom) being short circuited, which prevents the entire system from working properly. The ultimate goal is to timely protect and isolate faulty equipment from the system when a short circuit occurs, without affecting the normal operation of other devices. It can
Today, the Topband visited our factory for the annual factory audit. The company is a global leading provider of intelligent control technology, we have established a partnership with them for more than 15 years."
MB:+86 13924633629 Ms.vicky
E-mail: waimao@xcfuse.com
Factory :
XC Electronics(Shenzhen)Corp.,LTD
Add: Xucheng Technology Park, Daling Street Industrial Park, Huidong County, Huizhou City, Guangdong Province
Shenzhen branch: Shenzhen Xucheng Electronic Commerce co.Ltd
Add: 17A,Bldg 1,Innovation Industrial Park, No. 1 Danqing RD, Jinsha, Kengzi, Pingshan DIST, Shenzhen，Guangdong 518122 China
