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For a specific permanent magnet motor drive system, its maximum speed is restricted by the back electromotive force. The higher the speed, the higher the modulation voltage is required to balance i...[Details]
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Continuing from the previous article, let's take a look at IRQ. The interrupt source set as IRQ can be prioritized. In the interrupt source table, 32 interrupt sources can be assigned to IRQ. So wh...[Details]
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Why do products need to undergo electrical safety testing? This is the question that many product manufacturers want to ask. Of course, the most common answer is "because it is stipulated in the safe...[Details]
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3.2 Smoke detection alarm hardware circuit design
3.2.1 Signal acquisition and preamplification circuit
The output signal of the sensor is generally weak, and needs to be amplified, filtered, an...[Details]
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Chairman Kou Wei's work report provides us with direction and guidance for firmly implementing the spirit of the Fourth Plenary Session of the 19th CPC Central Committee and continuously creating a...[Details]
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1 Introduction
LED (light emitting diode) display screen is composed of light emitting diode array. Light emitting diode (LED) is a current control device with the advantages of high brightnes...[Details]
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There are the following macro definitions in stm32f10x_usart.h: #define USART_IT_PE ((uint16_t)0x0028) #define USART_IT_TXE ((uint16_t)0x0727) #define USART_IT_TC ((uint16_t)0x0626) #define USART_I...[Details]
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What is a fuel cell? The basic working principle of all fuel cells is the same: converting the chemical energy of hydrogen into electrical energy. However, several different types of fuel cell te...[Details]
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//Read one bit of data (read bit procedure) 1unsigned char tmpreadbit(void) //read a bit 2{ 3 unsigned char dat; 4 DS_OUT(); //Set the port to output 5 DS_L(); //DS=0 6 //Delayn(1); //2uS 7 DS_IN();...[Details]
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LED 照明的出现改变了照明的使用方式,在LED灯具中加入智能控制及调色功能为设计人员开创了新的机会。LED效率高、具调光能力、寿命长等优势,能让可变色灯具的效率更高、更具成本效益并且更加容易取得。数码信号控制器(DSC)可驱动各种创新应用,能实现更高效率的 LED驱动 、更精确的色彩控制并与外部有著更良好的沟通。以上优势汇集使得设计人员拥有更大的自由开发高度差异化的 LED照明 灯具。 ...[Details]
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Recently, CARIAD, a software company under the Volkswagen Group, announced that it will select Qualcomm Technologies to provide system-on-chip (SoC) for CARIAD's software platform, aiming to achieve ...[Details]
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question: Put the largest number among 30h, 31h, and 32h into 40h. Programming with pointers to RAM is as follows: span style="font-size:18px;" #include pic.h static volatile unsigned char ad...[Details]
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Introduction
The panel largely determines the brightness, contrast, color, viewing angle and many other effects of the display device. The same is true for TV products. The two major camps of LCD...[Details]
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1 Introduction
Boot Loader is a boot program that runs before the operating system kernel runs. It is used to initialize hardware devices, change the processor operation mode, reorganize...[Details]
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How to select gas sources with different gas purities as carrier gas and auxiliary gas for forest soil testing gas chromatograph is an old technical problem. However, it is difficult for users who h...[Details]