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  — Our 2018 State of Use Survey shows that consumers today are demanding more from their audio products than ever before; China has the largest number of audio technology 'early adopters' —   Qualco...[Details]

Introduction With the widespread application of VOIP and the development and maturity of multimedia communication technology, people have put forward higher experience requirements for ...[Details]

According to foreign media reports, mobile computing solution provider NEXCOM announced the release of its latest IP65-rated in-vehicle computer VTC 7252-7C4IP, presenting a safer enhanced vehicle mo...[Details]

1. Basic Concepts 1. 89C51 has two counters T0 and T1, and 89C52 has one T2. Each counter is composed of two 8-bit RAM units, that is, each counter is a 16-bit counter, and the maximum counting capac...[Details]

There are three types of electronic clocks: pointer type, LCD type, and LED type. The first two types are not clear in dim light, and the latter type generally uses digital tube display, which is l...[Details]

In order to achieve faster charging speed, the charging system of new energy vehicles has been gradually upgraded from 400V to 800V to shorten the charging time. The introduction of high-voltage fa...[Details]

Q1: How should the filter capacitor size be calculated? A1: Generally speaking, the selection of output filter capacitors is mainly to obtain a good filtering effect. The ripple of the output ...[Details]

Part 1 in Figure 1 is a rectifier filter circuit, which uses full-wave bridge rectification and capacitor filtering to convert 220V AC into 311V smooth DC. Part 2 is a switching power supply, which c...[Details]

Preface In the context of automobile intelligence and connectivity, the continuous innovation of ADAS technology, the continuous advancement of in-vehicle multimedia, the innovation of various...[Details]

Polysilicon was considered a high-energy-consuming and high-pollution industry in the early years because of the highly toxic and corrosive byproduct silicon tetrachloride produced during the produ...[Details]

Serial communication        The serial port communication module of the microcontroller plays an important role in the microcontroller. Through the serial port, it can communicate with the PC or othe...[Details]

Recently, five new industrial product projects undertaken by Tianneng Group, including "high energy density lithium-sulfur battery", have all passed provincial appraisals with their advanced techno...[Details]

On February 24, Reuters reported that large chip companies currently predict that the Russian-Ukrainian crisis will have limited disruption to the semiconductor supply chain, based on raw material in...[Details]

The output current of the ground grid ground resistance tester is divided into 3A/5A. It uses the power frequency three-pole method to measure, adopts independent anti-vibration structure design and ...[Details]

There would be no market for electric vehicles if charging infrastructure for electric vehicles required long queues and hours of waiting. As public charging points tend to increase power delivery ...[Details]