HR34134400.1LF

Try to wake up the halt() low power mode through the RTC interrupt. A low power clock source is needed as the RTC running clock. Select LSI's 16-division clock as the clock source: void RCC_LSI(voi...[Details]

　　1. Normally, the DC power input reverse connection protection circuit uses the unidirectional conductivity of the diode to achieve reverse connection protection. See Figure 1 below: 　　This conn...[Details]

Frequency characteristics are the response characteristics of a system (or component) to input signals of different frequencies, and are one of the most important characteristics of a network. The com...[Details]

Gallium nitride (GaN) is a wide bandgap semiconductor that is growing in use in a variety of power electronics applications. This is due to the material's special properties, which outperform silic...[Details]

On January 30, Apple officially launched the "Apple Watch 2022 Spring Festival Challenge Medal" event. The main content of the event is that from February 1 to February 15, Apple Watch users can c...[Details]

As Apple's AirPods are popular among consumers, other mobile phone manufacturers have entered the true wireless Bluetooth headset market, making the market prosperous, and more and more consumers hav...[Details]

ST's STEVAL-ILL022V1 is an 80W solar charger and 25W LED street lighting solution using the STM32F101Rx MCU. The solar street light controller includes an 80W battery charger and a 25W LED driver. Whe...[Details]

日前，据中国环氧树脂行业协会专家，专门介绍led环氧树脂(epoxy)封装技术。这位专家首先表示led生产过程中，所使用的环氧树脂(epoxy)，是led产业界制作产品的重点之一。环氧树脂是泛指分子中，含有2个或2个以上环氧基团的，有机高分子化合物，除个别外，它们的相对分子品质都不高。环氧树脂的分子结构，是以分子链中含有活泼的环氧基团为其特徵，环氧基团可以位于分子链的末端、中间或成环状结构。由...[Details]

1 Introduction Phase noise is an important indicator of frequency sources and frequency control devices. The test of frequency source phase noise is a frequent task for time and frequency professio...[Details]

With the development of microelectronics manufacturing, it is urgent to make high-speed and highly integrated CMOS circuits, which has prompted the process level of analog integrated circuits to re...[Details]

According to The Elec, ASML recently pointed out at the "2022 Semiconductor EUV Ecosystem Global Conference" that the number of ASML's EUV equipment production units has increased from 22 units in 20...[Details]

       Sina Digital News reported on the morning of March 15th that to this day, there are still many mobile phone players who lament that Nokia's N-Gage concept was ahead of its time. But in fact, N...[Details]

This article mainly introduces how to use PIC microcontroller to read humidity and temperature from DHT11 and display it on LCD display. In this example, the microcontroller model we use is PIC16F628...[Details]

Apple headphones have new ones.   After Apple announced that Apple Music will support lossless music and Dolby Atmos spatial audio features, it seems that everyone has sensed the signal that Apple's...[Details]

Every day, millions of pedestrians, cyclists, and motorcyclists share road space with large vehicles. These vulnerable road users (VRUs) face unique safety risks due to the lack of protection provi...[Details]