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CMI, also known as sign-inversion code, is a two-level non-return-to-zero code. The "0" code is represented by fixed negative and positive levels, and the "1" code is represented by alternating po...[Details]

Not only Huawei, but also other mobile phone manufacturers such as Xiaomi, OV, etc. are entering the "new battlefield" of AR.   Huawei, whose mobile phone business is in trouble, has set its sights ...[Details]

1 Introduction Today's security systems can be realized with the help of computer technology, IC card technology, communication technology, etc. The application of CAN bus in security...[Details]

A recent patent showed that BMW is also preparing to develop a large rotating screen in the car. In fact, rotating large screens are nothing new. At the 2018 Beijing Auto Show, the rotating large s...[Details]

The three upper drive outputs (pins 1, 2, and 24) of the MC33035 are NPN transistors with open collectors. They have a current absorption capacity of 50mA and a withstand voltage of 40V. They can be ...[Details]

How to repair a two-phase motor that does not rotate and buzzes after being powered on If a two-phase motor does not turn and makes a humming sound after being powered on, the motor may be dam...[Details]

As the industry gradually enters a cold winter, changes in revenue and net profit can most directly reflect the competitive strength of companies in the lithium battery industry chain. At pres...[Details]

introduction Semiconductor Manufacturing companies have little control over the systems in which their devices are used. However, the system in which the IC is installed is cr...[Details]

Recently, STMicroelectronics (ST) released such news that ST President and CEO Jean-Marc Chery and Global Marketing President Jerome Roux will resume visits to customers in China in November 2022. Je...[Details]

(Image source: Florida State University) According to foreign media reports, a research team from Florida State University and Cornell University has found that batteries can be made with cheap ...[Details]

#include reg51.h //Header file containing microcontroller registers #include intrins.h //Header file containing _nop_() function definition #define uchar unsigned char #define uint unsigned int...[Details]

The pursuit of high-efficiency, energy-saving, green and environmentally friendly electric light sources with good display performance is the persistent goal of the scientific and technologica...[Details]

Q1 is a common emitter transformer coupled oscillator. Circuit : The load is the secondary coil of transformer T. After the collector output signal is coupled by T, it is sent from the seco...[Details]

Method of measuring DC voltage with oscilloscope and data transmission with computer           (1) Set the channel coupling mode and trigger coupling mode to DC.  　　 　　(2) Adjust the vertical sc...[Details]

The method of connecting a single-phase inverter outputting three-phase 220V to a three-phase motor is as follows: Determine the input power and output voltage of the inverter First...[Details]