Continued from the previous article https://en.eeworld.com/bbs/thread-1143118-1-1.html
Today we will do an experiment to use GD32307E-START IO to simulate SPI to control RGBLED
1.RGBLED control chip i...
JSON, the full name is "JavaScript Object Notation", it is a text-based, language-independent, lightweight data exchange format. XML is also a data exchange format, but I personally prefer JSON in ter...
As shown in Figure 1, the standard step-down switch circuit has a freewheeling diode, but this diode is not included in the reference circuit of many Buck-type switching power supply chips. The periph...
I want to replace the rechargeable battery of an imported experimental instrument, so I disassembled its charger and drew a circuit diagram. There are some chip components whose specifications cannot ...
Good afternoon, friends~~ I am here to send you evaluation information again~~ This week, the shortlists for three activities have been released. Please follow the information to see if you are one of...
Is there any plugin or function in KEIL or other compilation environment that can help check if there is an error like if (a=1)? Of course, this error is definitely not just if (a=1), it may also be i...
Fluke DSX2-5000 Cable Analyzer series copper cable test solutions support testing and certification of twisted pair cabling for up to 40 Gigabit Ethernet deployments, and can handle any cabling syste...[Details]
Scientists use NVIDIA BioNeMo to create large language models that generate high-quality proteins to accelerate drug discovery and help create a more sustainable environment. January 12, 2023 - J....[Details]
AT2811 is a universal LCR digital bridge, a miniature desktop instrument controlled by a high-performance microprocessor. Four levels of test frequency are 100Hz~10kHz, 0.1V, 0.3V and 1V levels are o...[Details]
RAQ 222: Switch-Mode Power Supply Problem Analysis and Corrective Actions: Transistor Timing and Bootstrap Capacitor Issues
question
Why is it difficult to get a st...[Details]
According to foreign media reports, Klas, a leading global provider of edge intelligence solutions, announced the launch of a new data recording hardware TRX D8. This hardware is an on-board storag...[Details]
State Grid Corporation of China recently fully launched its 2020 market development work. In terms of comprehensive energy services, it will focus on four key business areas to develop the market, ...[Details]
At 13:15 on July 23, the maximum power load dispatched by Jiangsu Power Grid reached a new high of 105.1 million kilowatts, exceeding 100 million kilowatts for three consecutive years.
Since J...[Details]
Writing C programs in a certain style can help the C compiler generate ARM code that executes faster. Here are some key points related to performance:
1. Use signed and unsigned int types...[Details]
According to foreign media reports, Canadian company Bionym has recently developed a magical wearable device that can identify the wearer's unique information such as heartbeat, and store this inform...[Details]
The General Administration of Quality Supervision, Inspection and Quarantine, the National Standards Committee, together with the National Energy Administration, the Ministry of Industry and Inform...[Details]
On December 18, Crystal Optech issued an announcement stating that the company plans to cooperate with Hangzhou Lianli Investment Management Partnership (Limited Partnership) (hereinafter referred t...[Details]
Recently, at the annual GTC, NVIDIA founder and CEO Mr. Huang Renxun gave a keynote speech and was interviewed by EEWorld reporters, sharing his innovations in computing and graphics, high-performanc...[Details]
In the past two years, affected by smart phone terminals, the polarization of listed companies in the mobile phone industry chain has become very serious; for leading companies in various fields, the...[Details]
2019 was a period of oversupply for the display industry, and as panel prices plummeted, panel manufacturers' profit margins fell sharply, and some display manufacturers had to seriously consider cap...[Details]
PFC main circuit schematic diagram
Figure PFC main circuit schematic
The schematic diagram of the lossless absorption PFC main circuit is shown in the figure. In the figure, B1 is a rectifi...[Details]