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(Reporter Zhong Fan) On December 28, the reporter learned from the State Grid Sichuan Electric Power Company that over the past 10 years, the State Grid Sichuan Power Deyang Converter Station has c...[Details]
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Recently, due to the rapid development of the LED lighting industry, especially the great improvement in the performance of LED products and the continuous emergence of new features, for example, t...[Details]
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SysTick is a 24-bit timer built into the Cortex-M core, so we can see its register definition and configuration function SysTick_Config() in the core_cm3.h or core_cm4.h header file. SysTick's functi...[Details]
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1 Features and functions of TL494
Features and functions of TL494
TL494 is a voltage-driven pulse width modulator produced by Texas Instruments in the United States. It can be used as a switching...[Details]
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Logic Analyzer Sampling Principle The logic analyzer in the sampling process does not have multi-level electrical equality like an oscilloscope, but usually only displays two 0, 1 signals. First, ...[Details]
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A switching power supply is a power supply that uses modern power electronics technology to control the on-off time ratio of the switch tube to maintain a stable output voltage. A switching power...[Details]
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GKN, a world-renowned supplier of electric vehicle drivetrains, has teamed up with Drive System Design and the University of Nottingham to develop a new electric vehicle powertrain. Called ACeDrive, ...[Details]
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The resonant frequency of this circuit is 35MHz and 40MHz. The FM signal is added to the upper and lower loops respectively through two common base amplifiers, and the connection point of the two loo...[Details]
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#include pic.h #include stdio.h #define uint unsigned int #define uchar unsigned char uchar H_time=0,L_time=0; const uchar tab ={0x0a,0x22,0x11,0x14}; extern uchar code ={0x00,0x00,0x00,0x00}; void ...[Details]
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The power supply design of portable products requires system-level thinking. When developing battery-powered devices, such as mobile phones, MP3s, PDAs, PMPs, DSCs and other low-power products, if ...[Details]
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The flexible display and 5G monomer material project of Shaanxi Taihelihua Industrial Co., Ltd. is under intensive construction. According to Shenmu News, Zhu Kungang, the company's human resources ...[Details]
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Abstract DMA as a character device and call it in the initialization function
void *dma_alloc_writecombine(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp)
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When a short circuit fault occurs between turns of the motor stator winding, it is generally determined by measuring the DC resistance of the three-phase winding.
However, the DC resistance of...[Details]
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1. Two types of “test tubes” This "test tube" has a model with 65535 scales and a model with 255 scales, but the flow rate of water in our catheter is always constant. If we use a large test tube ...[Details]
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Modern industrial production and scientific research have increasing requirements for data acquisition. In some high-speed and high-precision measurements such as transient signal measurement and i...[Details]