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When measuring, please pay attention to the following points: 1. The multimeter must have a large enough internal resistance, at least 10 times greater than the resistance of the circuit being measur...[Details]
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Early this morning, Apple told developers that the online purchasing process for users in the European Economic Area may be affected by the "strong customer authentication" requirements that th...[Details]
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Under the global dual-carbon background, new energy vehicles have entered a stage of explosive growth, with production and sales increasing rapidly. As the core component that provides power, the bat...[Details]
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1. Refrigeration power of air conditioner We often say that air conditioners must be of sufficient horsepower to achieve the desired effect. In the calculation of central air conditioners, the co...[Details]
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Portable instrument is an important branch of single chip microcomputer research. This paper introduces a multi-parameter environmental monitoring instrument based on Sunplus single chip microcompu...[Details]
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Mouser Electronics, an electronic component distributor that focuses on introducing new products and providing a large inventory, announced its sponsorship of the 2020 China (Shenzhen) Integrated Cir...[Details]
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void timer0() interrupt 1
// Timer 0 interrupt service routine, used for dynamic scanning of digital tubes
// dis_index --- Display index, used to identify the offset of the current digital tube ...[Details]
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On September 24, Leyard said in an institutional survey that Lijing's products are divided into two categories, one is backlight products for notebooks and pads, and the other is self-luminous comme...[Details]
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The output of the infrared temperature sensor is a mV voltage signal. It outputs 0 voltage at room temperature (about 26℃), and a negative voltage at lower temperatures. To detect such a small signal...[Details]
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To start the kernel, the bootloader can jump directly to the first instruction of the kernel, that is, the starting address of the kernel, so that the kernel startup can be completed. However, to sta...[Details]
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When designing a printed circuit board, design engineers will carefully consider the copper wire routing and component placement. If these two points are not fully considered, the efficiency, maxim...[Details]
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The three-phase voltage-stabilized inverter power module adopts a two-stage power conversion architecture of DC/AC/power frequency transformer, with over-voltage, under-voltage, over-current and over...[Details]
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demand analysis The instruments used in this scheme have the following characteristics and design parameters: ●The pointer responds sensitively and moves accurately, that is, it cannot lose steps...[Details]
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1. 12V, 30W switching power supply with external current limiting
The circuit of a 12V, 30W high-efficiency switching power supply composed of TOP234Y is shown in Figure 1. Its AC input vo...[Details]
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About AVR interrupts: When the system is running the main program normally, if there is suddenly an important task to be processed immediately, the system will save the current work and then proces...[Details]
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