A very strange DXP problem. Can someone tell me why GND is sometimes missing when importing PCB? As shown in the picture. This is normal. GND appears in the picture when imported. This is abnormal. GN...
Using Jlink debugging, the 44b0 development board is a public version of the schematic diagram, the BIOS has been burned, and it should be able to run directly in SDRAM. The project selection also set...
Does anyone have a good method for 4.2V disconnection monitoring?When the current is set at 30K, according to the formula in the specification, the constant current charging current is 1000/30000=33mA...
I am a rookie who will be a sophomore next year. I taught myself 51 single-chip microcomputers in my freshman year. I got into it and understood the basic principles, but I was not familiar with it. W...
Source: Application of Electronic Technology Author: Yang Lu, Zhang Chunmao, Cui Huijuan, Tang Kundu Abstract: This paper introduces a multi-standard voice codec, which completes full-duplex communica...
A parallel inverter consists of two thyristors (T1 and T2), a capacitor, a center-tapped transformer, and an inductor. The thyristors provide a current path, while the inductor L maintains a consta...[Details]
Is electromagnetic radiation from electric vehicles harmful to the human body? Recently, the issue of electromagnetic radiation from electric vehicles has garnered widespread attention. However, pu...[Details]
In recent years, many people have switched to new energy vehicles, and this type of vehicle has indeed been highly sought after and is considered the future direction of automobile development, and...[Details]
Today's security industry has entered the era of massive networking. Many enterprises, especially financial institutions, have established multi-level video surveillance networking platforms. Lever...[Details]
With the rapid adoption of smart electric vehicles, automotive chips are evolving from auxiliary control units to the foundation of the entire vehicle's intelligence. Their applications extend from...[Details]
On August 18th, Galaxis, a specialist in integrated intelligent intralogistics robotics, officially unveiled its next-generation, ultra-narrow aisle forklift mobile robot, the "VFR Ultra-Narrow Ser...[Details]
The automotive industry in 2025 is undergoing a thorough intelligent reshuffle.
Geely wants to make changes in the field of AI cockpits: in the future, there will be no traditional smart...[Details]
introduction
As “energy conservation and emission reduction” has become an indicator of the National Economic Development Outline of the 11th Five-Year Plan, people’s awareness of green enviro...[Details]
In the scorching summer, electric fans are a must-have for cooling down people's homes. However, I believe most people have encountered this situation: the fan is plugged in, the switch is pressed,...[Details]
A half-bridge is an inverter topology for converting DC to AC. A typical half-bridge circuit consists of two controller switches, a three-wire DC power supply, two feedback diodes, and two capacito...[Details]
introduction
The widespread use of air conditioner communication circuits began with the rise of household inverter air conditioners. With China's energy conservation and emission reduction in...[Details]
Bearing wear is a common equipment problem in the manufacturing industry. In today's world where controlling production costs is advocated, using repair technology to reduce the scrapping and repla...[Details]
No one expected that after about a day of downtime, four or five thermostats on the control panel would display four 0000s and flash. We knew it was caused by poor contact of the temperature sensin...[Details]
STM8S compilation error unable to allocate space for sections/blocks with a total # Welcome to use Markdown editor
I've encountered many strange issues while developing with IAR for STM8, all ...[Details]
1. Basic structure and working principle of centrifugal pump
1. Centrifugal pump water pump relies on the high-speed rotation of the impeller to make the fluid obtain greater kinetic energy, a...[Details]
PCB Design
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