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 ...
Stanley I
With the rise of the lithium battery industry, the market for battery testing equipment has also become huge, and it is mainly used in the capacity division of 3C batteries and power batteri...
1. Overview of S3C2440 Serial Port Serial communication generally requires the addition of a level conversion circuit because the TTL/CMOS level is inconsistent with the RS232 level: TTL/CMOS level: ...[Details]
The preset voltage display circuit is shown in Figure 4. This design uses the decoder driver 74F244 to drive the LED digital tube to display the preset voltage, which is controlled by the microcont...[Details]
Recently, according to official news from Tesla, the Model 3 Standard Range Upgrade Edition made in China will arrive at Tesla offline stores today, and consumers can make an appointment for a test d...[Details]
As the basic chip of mobile phones, the power management unit is like an engine that drives the smart phone to run on the 3G highway. Although the existing power topology can meet the current appli...[Details]
Atmega16 is a low-cost 8-bit microcontroller with a higher number of GPIOs compared to its previous versions. It has all the commonly used communication protocols like UART, USART, SPI, and I2C. Due ...[Details]
ARM was founded in Cambridge, UK in 1991, mainly selling licenses for chip design technology. At present, processors using ARM technology intellectual property (IP) cores, commonly known as ARM proce...[Details]
CDMA mobile communication system has the advantages of strong anti-interference ability, good confidentiality, large capacity, etc., and has received widespread attention. CDMA uses the orthogonali...[Details]
Engineers in Sydney have demonstrated a quantum integrated circuit made of just a few atoms. By precisely controlling the quantum state of atoms, this new processor can simulate the structure and p...[Details]
In the previous chapter, we added nor and nand boot, and uboot booted as shown below: The Flash: *** failed *** above is the code in the second stage function board_init_r() of uboot. The code is a...[Details]
Many people don't know that in the daily production process of power transformers, the choice of materials determines the quality of the transformer. We should not only look at the low price, but i...[Details]
First of all, the rotor of Tesla's 3D6 motor adopts the classic single V permanent magnet structure, which uses a three-segment approach to optimize noise, with the middle segment being twice the s...[Details]
1. Introduction
With the development of society, especially the development of industry, and the improvement of people's lives, safety issues have become more important. At present, in many cas...[Details]
Ceramic capacitors are made of ceramics with high dielectric constant (barium titanate monoxide) squeezed into round tubes, discs or disks as dielectrics, and silver is plated on the ceramics as el...[Details]
GlobalFoundries, which has been at the center of controversy recently, announced yesterday that it would sell its 300mm plant in East Fishkill, New York, to ON Semiconductor for $430 million. Accord...[Details]
In the sound system, the speaker has the simplest structure, but plays the most important role. The speaker is the final link in the sound system and is the key device that converts electrical sign...[Details]
Talking
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