[i=s]This post was last edited by Shenzhen Xiaohua on 2021-9-2 15:30[/i]The wavelength of a 50 Hz electromagnetic wave is300,000,000 meters / 50 = 6,000,000 meters . Is it a single independent quantum...
Author: Joshua Zhu, ST engineer
Click to download the pdf document:Problem: Some customers want to develop products using BlueNCG-132 and want to add an external PALNA to extend the range of the RF sy...
① Throughout life, we should have a grateful heart, no matter they are parents or friends, colleagues or forum members, familiar or unfamiliar people... In the past year, in life, work or spirit, when...
When learning DSP development, I often feel that there are too many technical documents. Every book is useful and I want to read every book, but I don't know where to start. At this time, the principl...
See a battery switching circuit, as shown below,
1. Q1 and Q2 are NMOS tubes, Q3, Q4 and Q5 are PMOS tubes, and D1 is a diode.
2. BAT1 and BAT2 are batteries. The capacity of BAT2 is larger than that ...
Four major types of motors
Motors are classified according to their working principles and structural characteristics. Common motor types include the following four:
DC motor: DC mo...[Details]
Colorimeter Concept A colorimeter is an instrument used to measure the color difference of an object. It can also be called a colorimeter, colorimeter, colorimeter analyzer, colorimeter tester, color...[Details]
1. Explanation of some common English abbreviations in ARM MSB: most significant bit; LSB: least significant bit; AHB: Advanced High-Performance Bus; VPB: VLSI peripheral bus that connects on-chip an...[Details]
Beijing Core Energy Investment Management Co., Ltd. (hereinafter referred to as "Core Energy Investment") was established in 2015, initiated by industry leaders in the industry, and jointly invested ...[Details]
Background of the project A domestic heavy-duty vehicle manufacturer, whose product range covers heavy-duty military off-road vehicles, heavy-duty trucks, heavy-duty axles and auto parts, has a mo...[Details]
Abstract: This paper introduces a method for measuring battery capacity, which is to calculate the energy charged into and discharged from the battery and multiply it by the corresponding loss coef...[Details]
introduction The European Southern Observatory (ESO) is an astronomical research institute supported by 13 European countries. We have developed and deployed some of the most advanced telescopes in...[Details]
By Afshin Odabaee, Business Unit Manager, Micromodule Power Products Division, Linear Technology Corporation (now part of Analog Devices) The facts that are about to be stated will certainly make DC...[Details]
Two methods, assuming that the functions to be run in RAM are all placed in the download.c file
The first method: (using the default sct scatter file)
Put the function to be run in RAM in a f...[Details]
At present, with the improvement of people's living standards, air conditioners have become a must-have household appliance, but in scenes such as kitchens and bathrooms, the air conditioning mar...[Details]
This morning (12), Nikkei reported that Guo Taiming's Guangzhou factory, which invested 61 billion yuan, is seeking new investors to inject capital. It is said that the Guangzhou factory was original...[Details]
g_ak4961_i2s_tx_handle.Instance- SR __IO uint32_t SR; /*! SPI status register,Address offset: 0x08 */ 27.5.3 SPI Status Register (SPI_SR) CRCERR 8: FRE Bit 8 FRE: Frame format error Note: Use th...[Details]
Wi-Fi may not be the first wireless technology that comes to mind when you think of low-power applications, but it should be. The Internet of Things is one of the fastest growing industries in the w...[Details]
STM32 has 43 channel settable interrupt sources; the AIRC (Application Interrupt and Reset Register) register has 4 bits for specifying priority. /* Preemption Priority Group ------------------------...[Details]
Solar
led
lighting is one of the main uses of solar energy for human development and utilization. However, due to the discontinuity and intermittency of solar radiation, the high investment...[Details]