During the debugging of the CAN bus, the message failed to be sent. Many engineers only know one side of the story. Today, we will discuss the problem of CAN message sending failure.Before understandi...
Beyond CompareBeyond Compare is a lightweight and easy-to-use code comparison tool commonly used by programmers. To be precise, it is a file/folder comparison tool that supports comparison of multiple...
[size=5] Recently, the program on the project needs to filter a voltage signal. Although I have some understanding of digital signal processing, there is still a big gap between engineering applicatio...
I recently saw a design that connected a resistor between the input and output pins of 78L05. The reason for this was to expand the current, but I didn’t see this usage in the data sheet. I did a flyi...
This article and design code were written by FPGA enthusiast Xiao Meige. Without the author's permission, this article is only allowed to be copied and reproduced on online forums, and the original au...
As the fourth generation of new energy-saving light sources, LED light sources have been used as the light source for various lamps since their birth. The luminous efficiency of incandescent lamps ...[Details]
The current design of digital integrated circuits is relatively modular. EDA technology refers to the automatic design of electronic products using computers as a working platform, integrating the la...[Details]
The typical circuit of the switching power supply made of UC3842 is shown in Figure 1. Overload and short circuit protection is generally achieved by connecting a resistor (R4) in series with the s...[Details]
At the beginning of 2020, the epidemic swept across China, and the power battery industry, which was already at the center of the "major reshuffle", was also affected. This epidemic not only poses ...[Details]
At the end of last year, 17 EU countries announced that they would invest 145 billion euros (about 1.2 trillion yuan) in the next two to three years to promote joint research and investment in advanc...[Details]
This article presents a detailed reference design using the MAX5073 dual-channel step-down converter operating at a switching frequency of 2MHz. This design can be used in applications where board spa...[Details]
Soft starter and auto-coupling step-down starting are two different motor starting methods. They have certain differences in starting principle, structure, performance, application, etc.
...[Details]
According to Jiwei.com, Wuxi City recently released its 2021 major industrial project investment plan, planning to arrange 252 major municipal industrial projects with a total planned investment of 5...[Details]
OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
Experimental Principle
In the hardware schematic, we can see that there are two DC motor interfaces, which can be connected to a brushed DC motor and a brushless DC motor respectively. There i...[Details]
The display principle of the dot matrix is to send word codes by scanning rows and columns, or by scanning columns and rows. When the dot matrix screen is larger than 16×16, the ordinary 32 I/O por...[Details]
A remote control socket made a long time ago, with 12-channel decoding through a single-chip microcomputer.
Schematic
PCB
Internal structure
Panel: The red indicator light is t...[Details]
The insulation resistance polarization index is a key indicator for measuring the overall performance of the cable main insulation. It can be measured using the DC2403 insulation resistance tester. Of...[Details]
Three-phase power shortage means that one or two of the three phase lines have no voltage. When a user uses electricity, if he only takes out one phase wire, and this phase wire happens to be missing...[Details]
US media said that the trade war is having an impact on Apple, and a recent survey on Chinese consumer attitudes confirmed this. According to a Bloomberg report on September 20, in this annual repo...[Details]
Wireless Connectivity
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