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As the transportation of goods containing lithium batteries, such as mobile phones, tablet computers, and laptops, increases, the hidden dangers to the safe operation of airlines are also increasing. ...[Details]
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When the nameplate is lost and you do not know the number of poles of the original asynchronous motor, you can use the current μA range of the multimeter to test and judge. The method is: open the ju...[Details]
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With the popularity of electric vehicles, the 16A European standard charging gun plays a vital role as an important part of the charging infrastructure. However, in actual use, the current conversi...[Details]
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1. Detection of electrolytic capacitors: Depending on the capacity of the electrolytic capacitor, the multimeter's R×10, R×100, and R×1K ranges are usually selected for testing and judgment. The red ...[Details]
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FP5217 is a non-synchronous current mode DC-DC boost converter with built-in MOS, input low startup voltage 2.5V and voltage operating range 5V~24V, single lithium battery 3V~4.2V application, can ...[Details]
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There are two ways to trigger the external interrupt 0 (INT0) and external interrupt 1 (INT1) of the STC15 series MCU, the rising edge and falling edge can be triggered and the falling edge only trig...[Details]
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In 51, we write our own delay functions, whether in assembly or C. Although there are templates, it is still a bit annoying sometimes. Haha. But when we use avr microcontrollers, we are ...[Details]
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#include STC89C5xRC.h char tcount = 0; char step = 0; //Record the number of steps taken by the main motor (number of steps taken = step/2) char buf ; //Store command int en = 0; //en = 1 - system w...[Details]
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As the market demand for feature-rich mobile phones continues to grow, analog switches with application-specific performance continue to be favored in final designs. This not only reduces bill of m...[Details]
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In order to prevent the program from stopping unexpectedly, it is necessary to detect this state and reset the microcontroller. Therefore, you need to know the running time of the program you wrote...[Details]
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The idea of layering is not something mysterious. In fact, many engineers who do projects also use it. I have read many posts and found that there is no mention of this thing. However, the layered ...[Details]
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(Image source: materialstoday) Promoting the use of electric vehicles can reduce carbon emissions and dependence on fossil fuels. However, the limited range and high cost of electric vehicles have...[Details]
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Which is more annoying, a dead battery or having to recharge frequently? With the rapid spread of mobile phones (especially smartphones) around the world, people are always connected 24 hours a day, ...[Details]
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1. PCB layout and wiring principles
PCB provides electrical connections between components of the power amplifier circuit. To achieve the best performance of the power amplifier circuit, ...[Details]
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Tesla's Full Self-Driving (FSD) system is a major breakthrough in the company's autonomous driving technology and represents the forefront of current intelligent driving technology. Sin...[Details]