Source: 21st Century Business Herald
The Mid-Autumn Festival is approaching, and the Zhihu platform is distributing mooncakes to big Vs. Many big Vs have reported that after trying the mooncakes, they...
With the popularity of smart phones and the development of mobile Internet, various mobile phones and tablets have an increasingly strong demand for network speed and traffic, even to the point of bei...
I feel a bit disadvantaged this time, because the digital tubes are one inch with common cathode, which are big and bulky. Each tube is connected to an 8050 transistor, and then connected to 8 wires. ...
[i=s]This post was last edited by Yanyuan Technology House on 2019-6-12 16:16[/i]question:The square wave signal input interface on the PCB circuit board uses a 2.54 pitch bullnose socket, and the wir...
[If you don't understand, just ask] The voltage balance equation in motor science is U=E+IR+jIX. Here we take a permanent magnet synchronous AC motor as an example. U is the voltage applied to the thr...
[i=s]This post was last edited by Jacktang on 2021-5-30 17:06[/i]1. Development environment and toolsHC32F003 / HC32F005hc32f005_ddl_Rev1.9.0 LiteKeil uVision5 V5.33 / IAR For ARM 7.80.4 (J-Link)2. Pr...
On December 8, the 2022 China Automotive Industry Summit hosted by 21st Century Business Herald, 21 Finance, and China Auto Finance was officially held. Zhong Xuedan, Vice President of Tencent Smart ...[Details]
1. System Block Diagram and Measurement Principle
The transistor output characteristic curve describes the relationship between UCE and lC when the base current IB remains unchanged. Since the ...[Details]
The electronic control technology on automobile engines mainly includes the following aspects:
Electronic fuel injection (EFI)
The electronic fuel injection system is a system t...[Details]
News on August 3, tonight vivo officially released the vivo S7 series of mobile phones, focusing on beauty selfies, with a starting price of 2,798 yuan. At the beginning of the press confere...[Details]
On August 3, Cruise, a robotaxi company owned by General Motors, said it had signed the first union agreement in the driverless car industry. This is an important milestone. Cruise's decision to work...[Details]
When there is a computer signal input, the input analog R, G, B video image signals and horizontal/field synchronization signals can be detected first. Since the waveform of the video signal is relat...[Details]
I believe that people nowadays are familiar with batteries, because in our lives, whether it is used in equipment, tools and machinery, or children's toys, we will use this thing. At this time, peo...[Details]
PEPS refers to Keyless entry and keyless start system (Passive Entry & Passive Start System), this technology is widely used in vehicle access control Keyless entry systems, vehicle keyless start ...[Details]
Most circuits are ground referenced, and lower voltage components can monitor the low side of the load, but not the high side. For example, almost any low voltage rail-to-rail input op amp can sense ...[Details]
With the development and application of network technology, users have higher and higher requirements for network mobility and reliability. Wireless Mesh Networks based on the IEEE 802.11 series of s...[Details]
After reading the problem of printf function redirection in the usart section of Atom Brother, I tried it myself. The microcontroller can print information through the serial port, and the printf fun...[Details]
According to a report by Bloomberg on January 21, Intel's revenue in the first quarter of 2021 was approximately US$17.5 billion (excluding the memory chip division). According to data compiled by Bl...[Details]
According to Playfuldroid, Huawei confirmed in a briefing that it will release a mid-range Huawei Nova 8i in Southeast Asia. Now, Playfuldroid has released a rendering of the phone. As can be...[Details]
Issues that should be noted in secondary switching during the switching operation of 220kV substations
In recent years, with the development of science and technology, mature intelligent and d...[Details]
Servo press machine is a kind of automation equipment widely used in industrial production, mainly used to realize accurate press-fitting of workpieces. Its working principle is to achieve accurate...[Details]