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As a new generation of environmentally friendly lighting sources, white light emitting diode (LED) lamps have advantages that the current mainstream low-pressure mercury vapor discharge lamps canno...[Details]
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The 89C51 microcontroller is an 8-bit Flash microcontroller from ATMET. Its biggest feature is that it contains 4KB reprogrammable Flash memory, 128×8B internal RAM and 2 16-bit timers/counters. It i...[Details]
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Simple
buck converters
are very useful and cost-effective for low power supplies in applications where input-to-output isolation is not essential. However, in offline main power supplies...[Details]
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As shown in the figure, it is a parallel-adjustable voltage-stabilized power supply with the characteristics of adjustment, low noise, and low internal resistance. It is very effective in supplyin...[Details]
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According to Taiwan media Economic Daily, TSMC will build a wafer factory in Phoenix, Arizona, and is expected to produce 5-nanometer process products in the first half of 2024. The relevant factory ...[Details]
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Pediatrics has always been the focus of Yitu Medical. In September 2017, Leifeng.com participated in the cooperation ceremony between Yitu Medical and the Children's Hospital Affiliated to Zhejiang U...[Details]
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On the first day of the new year, the enthusiasm in the field of intelligent driving can’t wait to be rekindled. On January 28, Li Xiang, CEO of Li Auto, issued a letter to all employees within the...[Details]
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1. Key points of wiring planning
The purpose of cabling system design in data centers is to realize modular architecture of the system, to achieve simplicity, flexibility, operability and prac...[Details]
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According to CINNOResearch's monthly under-screen fingerprint market report, 2020 is expected to be the first year for the mass production and launch of LCD under-screen fingerprints. It is optim...[Details]
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On July 9, the International Telecommunication Union (ITU) Wireless Communications Sector (ITU-R) held a meeting and announced that NB-IoT met all indicator requirements and was officially accepted a...[Details]
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In the modern science and technology industry,
the use of
weighing sensors
is ubiquitous, because the resistance strain type weighing sensor itself is a strong, durable and reliable electrom...[Details]
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As early as June this year, vivo publicly demonstrated its 120W fast charging technology, and officially claimed that a 4000mAh battery can be charged to 50% in just 5 minutes and fully charged in 13...[Details]
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The tone can be changed appropriately. Use medium-resistance headphones and a 1.5V battery in series for power. The entire analog radio is installed in a wooden or iron box, and the keypad, headph...[Details]
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The program mainly realizes the following functions:
Read the value of seconds from the seconds register of DS1302 ;
The value of seconds is displayed using t...[Details]
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A soft starter is a device used for starting and running control of motors. It controls the starting current and voltage of the motor to achieve smooth starting and soft stopping of the motor, redu...[Details]
RF/Wirelessly
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