In the era of intelligent industry, the application of technologies such as industrial Ethernet, intelligent sensor networks, wireless communication networks, and industrial computers has made industrial system architecture increasingly complex. How to ensure that each module and even each component can perform safely and efficiently has become an unavoidable problem in the development of intelligent industry.
In the field of circuit protection, overvoltage, overcurrent, overpower, power distortion, and lightning surges can all damage circuits and even entire industrial systems. Therefore, to ensure the safe and efficient operation of industrial systems, the first step is to select powerful protection products to safeguard industrial processes. As the world's leading power protection brand, Worldway distributes Lite-On, which offers a wide variety of widely used protection devices, including passive components such as fuses, thyristors, and transient voltage suppressor diodes. Its complete product line builds a massive "firewall" for industrial applications.
Figure 1: Littelfuse circuit protection devices
With the rapid development of technology, inverter protection products must also adapt to market demands. Littelfuse, distributed by Worldway, has not only established a complete product line in the inverter protection field but also continuously introduces new products to meet the challenges of the times. The inverter industry is booming, and Littelfuse's 392 series fuses provide transient overvoltage protection for inverter equipment. The 392 series supports a current range of 800mA to 6.3A , providing reliable surge current handling capabilities and effectively protecting inverter equipment. Whether in consumer electronics or industrial equipment, Littelfuse protection devices are indispensable components, protecting customers' equipment and business assets from losses caused by circuit damage.
Figure 2: Protection circuit used in the main circuit of the frequency converter
The main circuit of a frequency converter mainly consists of a rectifier circuit, a current limiting circuit, a filter circuit, a braking circuit, an inverter circuit, and a detection and sampling circuit. As shown in Figure 2 above, protection circuits are used at both the input and output terminals of the main circuit. These protection circuits are designed to minimize, or even eliminate, the losses caused by the frequency converter malfunction when an abnormality occurs. Every brand of frequency converter places great emphasis on protection functions and strives to increase their effectiveness.
Overvoltage is a common problem in inverter operation. When overvoltage occurs, the inverter's overvoltage protection function will activate to prevent damage to its internal circuitry, causing the inverter to stop operating and preventing normal equipment function. Therefore, measures must be taken to eliminate overvoltage and prevent malfunctions. Adding a Littelfuse fuse to the inverter's power module input terminal for overcurrent protection is a very effective protection method. The Littelfuse 392 series fuses are now available for order through Worldway. Please call Worldway's service hotline at 40088-73266 for professional and prompt service!
About Shih-Chiang
Founded in 1993, Worldway Advanced Semiconductor is a major distributor in Greater China for globally renowned semiconductor companies and test and measurement instrument companies, including Avago, Renesas Electronics, Silicon Labs, Rogers, Melexis, Infineon, acam, Alliance, Micrel, Littelfuse, NEMICON, EMC & RFLabs, EPSON, Cpyress, Vincotech, SMI, Ricoh Microelectronics, and Keysight. It is also a key supplier to many electronics manufacturing and R&D companies. In addition to covering traditional industrial, communications, consumer, and automotive electronics sectors, its product portfolio also brings cutting-edge technologies and innovative products to emerging markets such as the Internet of Things (IoT), connected vehicles, wearable devices, and smart mobile terminals.
As a technology-driven distribution company, Worldway also boasts a mature technical support team and systematic service processes, providing customers with professional services such as new product introductions, rapid sampling, application consulting, solution and software design, development environment, after-sales service, and logistics, tailored to their specific needs. In 2014, Worldway's annual sales reached US$ 232 million, with 17 branches and offices nationwide and nearly 500 employees.
For more information , please visit the Sekorm website: http://www.sekorm.com
Welcome to call Shiqiang Service Hotline 40088-73266 for professional and fast service!
