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For years, Apple has been trying to beef up iPhone repairs, which are beyond their control. With the new changes coming to the iPhone 13, their goal may be to completely disrupt the market. When ...[Details]
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"Wallfacer Luo Ji, I am your wallbreaker."
In the science fiction novel "The Three-Body Problem", when humanity's basic science was blocked by the Trisolarans and came to a standstill, humans ...[Details]
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Introduction: I recently decided to review AVR microcontrollers, in fact, I also want to review several simple communication protocols, including serial port, SPI, I2C, etc. I thought I could finish ...[Details]
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By default, in a 32-bit CPU, gcc aligns structures to four bytes. typedef struct pack{ char a; int b; short c; }pack; For the Pack structure, by default on the arm/386 platfor...[Details]
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There are two triggering modes for the external interrupt of the 51 MCU: level triggering and edge triggering. When the level triggering is selected, the MCU checks the interrupt source line in each m...[Details]
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In-wheel motors are common in concept cars, but few can actually be mass-produced. At the Paris Motor Show, Protean Electric and Renault jointly launched the ProteanDrive fifth-generation in-wheel ...[Details]
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Have you ever struggled with picking snubber components? Calculating how much capacitance and resistance to add can be challenging. Here’s a quick way to solve this problem. Figure 1 shows the powe...[Details]
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The serious light decay of LED street lamps needs to be solved from the root of LED heat dissipation technology. The serious light decay of LED street lamps has caused LED street lamps that have been...[Details]
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The SPI bus system is a synchronous serial peripheral interface; it is a high-speed, full-duplex, synchronous communication bus, and it only occupies four wires on the chip pins, saving the chip pins...[Details]
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Abstract: This paper introduces the functions and applications of ML4425 pulse width modulation motor controller.
Keywords: three-phase brushless DC motor; sensorless; back-EMF sampler; phase-l...[Details]
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China Energy Storage Network:
Blockchain technology is just like the transformation of traditional industries by the Internet. Business models or enterprises will be redefined.
What is t...[Details]
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The ground resistance tester is used to measure the ground resistance. It adopts a non-contact measurement method, has the advantages of no need to drive ground piles and high measurement accuracy. I...[Details]
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As the leader in the global mobile phone market, Apple's new generation of iPhones every year will receive widespread attention from the outside world early on. Recently, Apple officially released ...[Details]
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With the improvement of edge computing capabilities and network connectivity of the Internet of Things (IoT), terminal products can increasingly make decisions autonomously. At the same time, there a...[Details]
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1. Introduction In the modern power electronics industry, rectifier and inverter power systems have made great progress. In this power system, the role of the DC link capacitor is to prevent the DC ...[Details]
Discrete Device
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