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On August 24, Ruichuang Micronano released its 2021 semi-annual report showing that its operating income in the first half of the year was 870 million yuan, a year-on-year increase of 255.54%; its ne...[Details]

In notebook computers and PDA portable systems, in order to meet the JEDEC (Electronic Device Engineering Design Council) standard specification (JESD79E), strict requirements are imposed on DDR2-3...[Details]

On November 9, the 18th China Semiconductor Packaging and Testing Technology and Market Annual Conference was held in Tianshui, Gansu. Zheng Li, Vice Chairman of the China Semiconductor Industry Asso...[Details]

The volume meter is a special instrument for monitoring radio programs . Its technical performance and quality will directly affect the broadcast quality. The most widely used volume meters a...[Details]

Recently, a digital blogger has exposed the offline promotional poster of the Chinese version of Huawei Mate X 5G, indicating that this folding screen mobile phone will be on sale. From the Huawei Ma...[Details]

Three-phase phase loss alarm light circuit: This circuit is used in three-phase three-wire systems, that is, there is no neutral wire. When a phase loss is detected, just light up the LED light, ...[Details]

Connection method and principle of three-phase power supply The three-phase winding of a three-phase generator has two connection modes: star (Y) and triangle (△). 3.1.2.1 Star co...[Details]

A “supergrid” connecting North Africa and Europe using photovoltaics, wind and concentrated solar thermal could bring both regions close to 100% renewable energy by 2050, but will require pol...[Details]

1. Overview Human proximity sensor, also known as contactless proximity sensor, is an ideal electronic switch sensor. When the metal detection body approaches the sensing area of ​​the sen...[Details]

1 Introduction The TMS320F2812 (hereinafter referred to as F2812) selected in this system is a 32-bit DSP chip developed by TI. It adopts high-performance static CMOS technology and has...[Details]

Functions and uses of smart watches Smart watches have a variety of functions and uses, here are some common ones: Time display: The most basic function of a smart watch is to displ...[Details]

According to an analysis report released on August 15, by 2030, global annual demand for batteries will rise to 3.4TWh, of which electric vehicles will account for the vast majority...[Details]

In the past, oscilloscopes were difficult to use for EMI debugging because they did not have the sensitivity required to capture EMI radiation signals, their FFT spectrum analysis capabilities were n...[Details]

Lenovo held the third Tech World Conference in Shanghai. At this conference, Yang Yuanqing did not introduce the core hardware business as usual. Instead, he announced with great enthusiasm that Leno...[Details]

Self-protection device R25 with 1.5 kΩ resistance, can handle voltages up to 1200 VDC, has an energy absorption capacity of 340 J, and reduces component count MALVERN, Pennsylvania, ...[Details]