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The "high availability" of the UPS power supply system requires that the system must have four elements: reliability, functionality, maintainability and fault tolerance. The internal topology of th...[Details]

Electric machine (English: Electricmachinery, commonly known as "motor") refers to an electromagnetic device that realizes electrical energy conversion or transmission according to the law of elect...[Details]

The luminous intensity of the LED in the picture is proportional to the load current. The circuit is designed to provide a very compact circuit to replace the meter on the 12V power line in some astr...[Details]

I still remember when I joined Shangao China in January, I frequently heard the prediction that "2019 will be the most difficult year", and I was skeptical. After all, for a striver, every step is no...[Details]

About .prm files in Codewarrior To discuss the address mapping of the microcontroller, we must come into contact with the .prm file. This discussion is based on the Codewarrior 5.0 compiler, and the ...[Details]

We have analyzed the BOM table of QCY T1C true wireless Bluetooth headset. This time we will analyze the number of components and their cost.  Device analysis description: Before we start the analy...[Details]

According to foreign media reports, researchers at the University of São Paulo's Chemistry Institute (IQ-USP) in Brazil have discovered that highly concentrated aqueous electrolytes, also known as wa...[Details]

This article will describe the development steps required to design a feed-forward active noise cancelling headphone based on the AS3415 active noise cancelling chipset from ams. Equipme...[Details]

8K TVs will have a moderate success over the next few years, according to new research from Strategy Analytics’ Connected Home Devices service. The research report – which will be released at the NAB...[Details]

Unless you’ve been on a spaceship, a power car seat is probably the most sophisticated seat you’ve ever experienced. With more adjustments than an airplane seat and more comfort than a dental chair...[Details]

Combined with the driver design of "Universal High-Speed ​​PCI Bus Target Module", this paper comprehensively discusses the main problems and solutions faced when writing drivers for Windows devic...[Details]

Problem background:    When using 8BIT microcontrollers for development, floating point operations are not supported. However, development must use floating point functions such as sin, cos, arctan, ...[Details]

Function of the circuit Phase shift circuit is a circuit that makes the sine wave phase advance or lag. Phase shift circuit can also change SIN wave into COS wave. For 3-phase A...[Details]

China Energy Storage Network: In order to implement the spirit of the Central Economic Work Conference, actively fulfill the political, economic and social responsibilities of central enterpr...[Details]

ESK-IRRC-R00 is an infrared remote control decoder and needs to be used with the infrared remote control development platform and infrared remote control developed by Holtek. After conne...[Details]