Accurately determine the amount of refrigerant charged in the refrigerator

With a series of favorable policies such as separate lottery quotas, purchase tax reduction and exemption, and new energy vehicles being exempted from license plate restrictions and traffic restrictions, as well as the gradual enhancement of consumers' environmental awareness, new energy vehicles in my country are n

Bamboo has a water-carrying film inside it that makes it the fastest growing plant in the world. According to foreign media reports, Queensland University of Technology used this as inspiration to develop more efficient battery electrodes, thereby speeding up charging. The research project builds on previous work on t

Jiwei.com reported that the market demand for wireless charging products is currently being released, but the industry technical specifications are still lacking. Therefore, on February 20, 2021, the Ministry of Industry and Information Technology issued a draft for comments on the "Interim Provisions on Radio Managem

　　Design Features 　　Innovative control concept enables extremely low-cost solutions with low component count 　　Primary-side control eliminates the need for a secondary-side controller and optocoupler 　　Constant voltage (CV) accuracy: ±5% 　　Constant current (CC) accuracy: ±10% 　　Overtemperature protection with hystere

        The advent of Smart Battery Systems (SBS) has greatly simplified the design of stand-alone battery systems, so its application has gone beyond the notebook computer field and has appeared in various other applications, such as backup power systems, high-reliability military and aerospace applications. Other ke

STMicroelectronics’ new product STSAFE-V safety unit supports the latest Qi wireless charging specifications, has passed the Common Criteria for Safety Assessment (CC) highest assurance level certification, and is used by indie semiconductor companies to develop car charger reference designs On January 5 ,

The automotive market is shifting, with sales forecasts revised upward as electric vehicle (EV) adoption rates increase rapidly. While EVs represent only a small portion of the overall market, EV sales are expected to reach 10 million in 2025, and by 2050, more than 50% of all cars sold will be EVs. Most

When charging single or dual-cell lithium-ion (Li-Ion) batteries through a USB port or AC/DC adapter, designers need solutions that can increase charging speed and solve the thermal issues associated with linear chargers. To meet this need, Fairchild Semiconductor has developed the FAN5400 series of USB- compa