RM1/16WF06035362

Use the parallel port P1 of AT89S51 to connect a 4×4 matrix keyboard, and use P3.0-P3.3 As input line, P3.4-P3.7 as output line; the digital button serial number "0-9" is displayed on the digital tub...[Details]

1 How to perform reactive power compensation The principle of local balance should be adopted to keep the total reactive power output (including reactive compensation) and total reactive load ...[Details]

1 Structural principle Normally, a PFC boost converter with a wide input voltage range often loses a lot of output power due to the increase in its switching loss. The use of zero voltage switching (...[Details]

1 Introduction As the number of cars in my country increases year by year, the development of highways makes the speed of cars faster and faster. The traffic volume is also increasing, resulting in f...[Details]

Tektronix Oscilloscopes Including 2-series oscilloscope MSO2, 3-series oscilloscope MDO3, 4-series oscilloscope MSO4, 5-series oscilloscope MSO5B, 6-series oscilloscope MSO6B, 70K oscilloscop...[Details]

I have been using ULINK2. A few days ago, I encountered a board that could only use the SWD debugging interface, so I made a record. Open ULINK2, find the ARM (20P, 2.54mm) interface, and use Dupon...[Details]

On the morning of February 23, the Mobile World Congress (MWC2021) officially opened at the Shanghai New International Expo Center. At this exhibition, AAC Technologies (AAC) brought dozens of the la...[Details]

It is reported that Motorola (China) Electronics Co., Ltd., Mobile Lenovo Mobile , LG Electronics, Siemens (China) Co., Ltd. and other large companies have a large number of vacancies for el...[Details]

Now that the running lights are running, you are a little excited. Let's try other things. When writing programs on a PC, you can use perror to print out information when something goes wrong, which ...[Details]

To expand international business, what "three aspects and seven elements" do companies need to understand? At this stage, in an environment where the domestic market is approaching saturation, c...[Details]

Good temperature characteristics and frequency characteristics. Generally, the capacitance of capacitors decreases as the frequency increases, but the decrease of monolithic capacitors is relativel...[Details]

1. Introduction LTE system supports two duplex modes, FDD and TDD. In these two duplex modes, most of the system designs, especially the high-level protocols, are consistent. On the other hand...[Details]

Following the application of TDK electronic products in the medical field mentioned in previous issues, today we will introduce the application of TDK electronic power capacitors in automatic externa...[Details]

1 Research status At present, some achievements have been made in the research on internal overvoltage of AC/DC hybrid systems at home and abroad. The literature simulates and analyzes the mec...[Details]

Speakers Due to the influence of various factors such as the structural form, the selection of cabinet materials, and the processing accuracy, the speaker itself is a mixed sound source of ...[Details]