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According to foreign media Gsmarena, the Samsung Galaxy S21 has now been certified by the Bureau of Indian Standards (BIS), which is significantly earlier than previous Galaxy S series models....[Details]
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LED light source
As the fourth generation of new energy-saving light source, it has been used as a light source for various lamps since its birth.
The luminous efficiency
of incandes...[Details]
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3.5 Output Rectification and Filtering Circuit
It is composed of a rectifier diode, a filter capacitor and a smoothing inductor. The high-frequency square wave voltage of the secondary winding is...[Details]
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The scope of variable frequency motors mainly refers to the motor types and parameter ranges that the inverter can control. Generally speaking, the scope of variable frequency motors includes the f...[Details]
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The voice interaction system is a more user-friendly human-machine interface, which requires the support of the voice recognition system. LD3320 is a voice recognition chip. This article introduces...[Details]
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Traditional frequency characteristic testers are not only expensive, but also cannot obtain phase-frequency characteristics. They cannot save and print frequency characteristic diagrams, and cannot i...[Details]
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According to news on December 1, according to media reports, on November 30, Wu Kai, chief scientist of CATL, announced at the 2023 International Automotive Electronics and Software Conference that c...[Details]
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1 Introduction
With the rapid development of microelectronics technology, communication technology, control technology and semiconductor technology, as well as the increasing requirements for ...[Details]
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1. System Solution
Solution 1: Use small and medium-sized digital circuits to form the system, with counters as the main measurement module and timers as the main control circuit. This solution...[Details]
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Common motor control methods include the following:
1. DC Motor Control:
- Direct voltage control: The speed of the motor is changed by adjusting the DC voltage.
- Pulse Width Modula...[Details]
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PowerCo SE, a battery company under Volkswagen Group, is building its largest super factory to date in St. Thomas, Ontario, Canada, and the company aims to increase annual product...[Details]
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This article introduces the application circuit diagram of TDA2009 power amplifier. The maximum working power voltage is 28V, and the output power is 2×10W. The typical working power voltage is 24V...[Details]
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Chinese name: Eye English name: eye diagram;eye pattern definition: The digital communication symbols displayed on the oscilloscope screen are formed by the overlapping of many waveform par...[Details]
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Recently, Shanghai Silicon Industry disclosed the results of its private placement. The company issued approximately 240 million A-shares to specific objects, with an issue price of 20.83 yuan per sh...[Details]
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Since the orifice flowmeter was used in the industrial field, its application scope has been continuously expanded. The original product specifications and standards can no longer better adapt to the...[Details]
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