When reading the book "496 C Language Questions You Must Know", the "Duff Device" is mentioned, mainly the following code:
register n = (count + 7) / 8;
switch (count % 8){
case 0: do { *to = *from++;...
(Help) 316 drives IGBT, and it always burns IGBT, including 400A ones (the current should be below 400A), it just turns on and off, no Pwm is used, and every time it burns, the IGBT is always turned o...
[size=4]Recently I have been looking at the SAU of 809, which is said to be very good, including a CSI and a UART channel, but the actual use is far from that. [/size][size=4]The official brought a sa...
The TIA Portal software's shift instructions shift the contents of an accumulator bit by bit to the left or right. The number of bits shifted is determined by N. A left shift of N bits multiplies t...[Details]
PV DC fuses are safety devices used to protect PV panels, inverters, and DC loads. To ensure their safety and reliability, they must be UL248 certified.
Before applying for UL248 certifi...[Details]
Most of the houses we live in now are elevator buildings, mainly because it is more convenient to go up and down the stairs! It can also make life more comfortable. It even helps to increase the ad...[Details]
Electric vehicles are currently gaining momentum, but this is just a facade. Fuel-powered vehicles remain unchallenged. While electric vehicles boast unique advantages in environmental emissions an...[Details]
To understand why car engines need gearboxes, we must first understand the characteristics of different types of engines. An engine refers to a machine that can convert a form of energy into kineti...[Details]
As time goes by, people are increasingly concerned about their own and their families' health. However, existing monitoring devices for individual vital signs have struggled to gain market share du...[Details]
On August 25th, Apple's expansion in India encountered new troubles. According to Bloomberg, Foxconn Technology Group has recalled approximately 300 Chinese engineers from India, further hindering ...[Details]
With the rapid advancement of automation technology, collaboration between robots is no longer just science fiction. Imagine dozens of machines moving goods in a warehouse without interfering with ...[Details]
On August 22, according to the Ministry of Industry and Information Technology's official website, my country's first mandatory national standard for the control of hazardous substances in electric...[Details]
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According to the China Fire Statistics Yearbook, electrical fires accounted for more than 30% of fire accidents in the past decade, and the trend is increasing year by year. They ...[Details]
Electric vehicles are now widespread, but they've brought with them a host of problems, the most prominent of which is charging. Small electric vehicles (EVs) are a new form of transportation in a ...[Details]
Tires are a very important component for cars. They are related to the driving experience of the vehicle. We are almost inseparable from cars in our daily lives. For tires, according to the role of...[Details]
Based on the commutation technology, thyristor rectifiers are classified into two main types. Line-commutated and force-commutated inverters are commonly used, while other commutated inverters, nam...[Details]
In daily life, power transformers have different functions and uses due to different usage scenarios. The most common ones can be divided into: control transformers, isolation transformers, rectifi...[Details]
In the field of intelligent driving, regulations are becoming increasingly stringent, and the technical threshold continues to rise. Especially after the traffic accident in March 2025, the Ministr...[Details]