I use pure hardware to make a three-phase inverter, with sine waves from LM358 and triangle waves from 555. I use LM358 to compare the SPWM, and the phase difference is 120. But when the input voltage...
Some time ago, I posted a thread about the LCR measurement circuit, and I have some ideas. https://bbs.eeworld.com.cn/thread-476594-1-1.html Under normal circumstances, LCR measurement should use two ...
Abstract In the post-PC era, more and more fields require the support of embedded systems. Traditional embedded system development methods can no longer meet the growing complexity and quality require...
Every time a new mobile phone standard is released, we see new claims about the “end of Wi-Fi.” When 3G was announced, there were promises that the advent of the technology would lead to the rise of W...
I would like to ask you: When I am routing in Protel DXP, when I click on the pad to be routed, only the pad of this network is displayed, and the pads of other networks disappear. When I exit the rou...
[Evaluation and experience of Zhongke Yihaiwei EQ6HL45 development platform] +03. Flowing light simulation and board test (zmj)
The Zhongke Yihaiwei EQ6HL45 development platform provides a very rich i...
Leading Chinese PV inverter manufacturer Huawei said it is supplying string inverters to a 75MW fully digital utility-scale solar project in Brazil, which it claims is the first of its kind in the cou...[Details]
This routine is also a classic routine on the development board. I modified the framework of the program to make it more suitable for future calls. The specific 4*4 keyboard scanning principle is rel...[Details]
1. FSMC Brief FSMC, the Flexible Static Storage Controller, is capable of interfacing with synchronous or asynchronous memories and 16-bit PC memory cards. The FSMC interface of STM32 s...[Details]
At this exhibition, Microsoft brought its flagship intelligent voice products - XiaoIce and Xiaona. In addition, the voice will be equipped with an intelligent face recognition system. Let's see ho...[Details]
1. Function and purpose There are two pins BOOT0 and BOOT1 on each STM32 chip. The level status of these two pins when the chip is reset determines which area the program starts from after th...[Details]
Here is the temperature added in the previous chapter The above figure is the temperature calculation formula: where Vsense is the ADC value collected from the temperature channel. The stm32f407 ...[Details]
Mixed reality (augmented and virtual reality) is the next computing frontier after the PC in the 1970s, the web in the 1990s, and mobile platforms in the 21st century.
MR
is the most unique...[Details]
The CAN of the STM32 ordinary chip has 14 filter groups (the interconnected type has 28 filter groups) to filter the received frames. Each filter group includes 2 configurable 32-bit registers: CAN_F...[Details]
What else can we do before the arrival of 5G
,
which will be officially commercialized in 2020
? Let's follow the network communication editor to learn about the relevant content.
I...[Details]
"Now I can't even afford a
memory
stick
to equip my computer
." The price of
memory
sticks has risen rapidly recently. Take 8GB Kingston
memory sticks
as an example. Compared...[Details]
Starting this month, 39 electric vehicle charging stations in Urumqi have begun to be upgraded to the new national standard, and it is planned to be completed by the end of the year.
On the 21...[Details]
Power technology
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