72252-6105GRALF

introduction This paper introduces a design of a voice recorder based on voice storage and automatic playback system. The design is centered on ISD4004 voice chip and AT89S52 microcontroller, ...[Details]

When we use kei c51 to create a 51 microcontroller project, there will be a prompt as shown below: When keil creates a new project, it prompts whether to add a startup file Normally, you need to sel...[Details]

【Introduction】IGBT7 is Infineon's latest generation IGBT technology platform. The performance comparison between it and IGBT4 has always been a concern for engineers. This article tests FP35R12W2T4 a...[Details]

At the financial report meeting on October 13, TSMC not only announced its Q3 quarter results, but also revealed the latest process progress. The demand for the 3nm process has exceeded expectations....[Details]

__irq is a flag used to indicate whether a function is an interrupt function. For different compilers, the position of __irq in the function name is different, for example: In ADS compiler: void __ir...[Details]

!E  library (197): area 'bss' not large enough want size 384 lo 910 hi 1119 size 210 Error analysis: The bss segment is where the compiler stores global arrays and local static arrays. If we declare...[Details]

1.  First check whether the transformer is in good grounding condition, and all bushing leads should be untied.    2.  Record in detail the nameplate data of the test product and whether there are ...[Details]

　　Recently, there was an announcement issued by the China Consumers Association about the computer radiation interference exceeding the standard, which is easy to affect the equipment in the power gri...[Details]

The main circuit of the inverter is shown in Figure 3. In daily maintenance, technicians can use a digital multimeter to simply determine whether the rectifier bridge, IGBT, IPM devices, etc. of the ...[Details]

Temperature is by far the most electrically measured physical parameter because of the many inferences that can be made about a physical system. When selecting a temperature sensor, a balance needs...[Details]

#include #pragma config JTAGEN =OFF char   Led ={0x42, 0xf3, 0x86, 0xa2, 0x33, 0x2a, 0x0a, 0xf2, 0x02, 0x22, 0x40, 0xf1, 0x84, 0xa0, 0x31, 0x28, 0x08, 0xf0, 0x00, 0x20, 0x1e, 0x0e, 0x0f, 0xbf, 0x23,...[Details]

Fault phenomenon Sometimes it won't boot, and it restarts at irregular intervals. Testing process After testing, it was found that the instrument control board was damaged, causing it to fail to tu...[Details]

"Give him the space for Mercedes-Benz, BMW, and Audi cars ranging from RMB 300,000 to RMB 500,000. We will completely drive out BBA within the price range of RMB 500,000." In February 2022, when Yu...[Details]

A few days ago, multiple sources pointed out that Lenovo founder Liu Chuanzhi was about to step down as chairman of Lenovo Holdings. On the evening of December 18, Lenovo Holdings issued an announcem...[Details]

Ultium Cells, a joint venture between LG Chem and General Motors, is expected to start production at its Michigan Gigafactory in early 2025. Image: Ultium Cells. The U.S...[Details]