Shenzhen Changjiang Connector Co., Ltd. is a world-leading professional connector manufacturer with 20 years of experience. Its products mainly include wire-to-board connectors, board-to-board connectors, wire-to-wire connectors, wire harness processing and connector design, mold development and manufacturing. It is compatible with international brand connectors from Europe, the United States, Japan, South Korea and other countries.
1 IntroductionThe stethoscope is an essential diagnostic device for clinicians, usually used to diagnose cardiopulmonary diseases. However, in order to make a preliminary diagnosis of heart disease, a...
NMOS+PMOS controls the battery voltage output1. When MCU_CTL is high, Q5 and Q1 are turned on, and BAT_OUT outputs the battery voltage of 3.7V. This is no problem2. When MCU_CTL is low, Q5 and Q1 are ...
Designing a wide input DC/DC converter for smart lock applications : https://training.eeworld.com.cn/course/5268This video discusses the unique challenges of powering a smart lock with a wireless inte...
When the program executes to read_pcm();, the earphone has sound. Actually, read_pcm(); reads the value of vs1053 register. What's the problem? int main(void) { u16 i=0; delay_init(); //delay function...
On June 6, Yang Chaobin, president of Huawei's 5G product line, said that the boundaries of each generation of mobile communication technology are very clear, and the next 10 years will be the 10 yea...[Details]
With the acceleration of urbanization, people's demands for in-vehicle navigation are no longer as simple as satellite positioning and electronic maps. Some information interaction systems with fun...[Details]
At the 2019 Alibaba Cloud Conference Artificial Intelligence Chip Forum, Wei Shaojun, director of the Department of Micro-Nano Electronics and director of the Institute of Microelectronics at Tsinghu...[Details]
Testing process
1. All experiments must be carried out under standard atmosphere.
2. Place three samples (the same sample) and 25 mg (about 5 mm) of grey short cotton fibers in each drum, allow...[Details]
The driver is located in the middle of the main control box, driver, and motor in the entire control process. Its main function is to receive signals from the main control box, process the signals,...[Details]
According to etnews, as the COVID-19 outbreak continues to spread around the world, the market is still struggling in the second quarter. Some predict that the new coronavirus will have a greater neg...[Details]
1. Buzzer Experiment In many single-chip computer systems, there are often sound devices in addition to display devices. The most common sound device is a buzzer. Buzzers are generally used in some...[Details]
I haven't written for a week, so I'll take some time today to write my blog. I took the Trend Micro exam on Saturday, and I felt that I still have some knowledge gaps in software design. I have bla...[Details]
Recently, Shenzhen Hanhua Andao Technology Co., Ltd. (Hanhua Andao), a high-tech manufacturer focusing on the research and development and production of active automotive safety products, announced...[Details]
Since the country entered the hot summer weather, there have been endless news reports about electric vehicle fires. What causes the frequent fires in electric vehicles? In life, most of the common m...[Details]
LM4766 amplifier IC parameters
LM4766 has complete functions such as overvoltage, undervoltage, overload, overtemperature (output automatically shuts down at 165℃ and automatically resumes ope...[Details]
Recently, the editor interviewed Doug Bailey, a senior expert in LED driver circuit design. He summarized the issues that need to be paid attention to in the design work and his personal design exp...[Details]
Power dividers and combiners are the most commonly used/common high-frequency devices, as are couplers such as directional couplers. These devices are used to divide, combine, and couple high-frequen...[Details]
Wearables for personal health and wellness are a rapidly growing market. There are wristband devices (represented by the likes of Fitbit and Garmin), but they are just a starting point. There is al...[Details]
Microcontroller MCU
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