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At present, the development of circuits is moving from abstract analogy to digitalization, so the development of these measuring instruments is also moving towards this conditional method. Now, in te...[Details]
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One of the characteristics of the AT89S51 microcontroller memory structure is that the program memory and data memory are separated (called Harvard structure), and there are separate access inst...[Details]
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Recently, the Ministry of Science and Technology issued a notice on the issuance of the "14th Five-Year Plan for the Development of National High-tech Industrial Development Zones" (hereinafter ref...[Details]
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-------------------------------------------------------------------------------- ; RAM used by LCD part 0200H~~~~021FH Rn used are R15/R14 ; LCD reset subroutine (LCD_REST) does not need to be set ...[Details]
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The most basic chopper circuit is shown in Figure 1. The chopper load is R. When the switch S is closed, uo=uR=Ud, and it lasts for t1 time. When the switch is turned off, uo=uR=0, and it lasts for t...[Details]
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On March 2, Beijing's third-party service organization for autonomous driving vehicle road testing, the Beijing Intelligent Vehicle Industry Innovation Center, officially released the "Beijing Autono...[Details]
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1 Introduction
In recent years, programmable controllers (hereinafter referred to as PLCs) have been widely used in the field of industrial control due to their high reliability, simple progra...[Details]
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my country's clean energy is mainly concentrated in the southwest and the "three northern" regions. Due to the lack of effective unified planning between the power grid and power sources, the probl...[Details]
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In modern industrial production, many high-power motors are used. Due to the large starting current, the impact on the power grid is also great, which poses a threat to the insulation and operation...[Details]
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Recently, Plastic Logic, headquartered in California, USA, and ISORG, a French company, jointly invented a flexible plastic camera sensor that may be used in future folding mobile phones.
Previou...[Details]
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1. Lead-acid battery Lead-acid batteries are a relatively mature technology. They are still the only battery that can be mass-produced for electric vehicles because of their low cost and high discha...[Details]
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How to use piston pressure gauge 1. The piston pressure gauge should be installed on a workbench that is easy to operate, firm and vibration-free, and the table top should be made of strong and e...[Details]
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The constant current and constant voltage in the power supply are achieved by connecting the op amp to negative feedback. There is also a device with a structure very similar to the op amp, which is...[Details]
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Overload is one of the faults that causes the inverter to trip frequently. Overload faults include frequency conversion overload and motor overload, which may be caused by too short acceleration ...[Details]
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The demand for tuners for multimedia products such as digital TVs and set-top boxes is growing, driven by consumers' expectations for more features and higher performance from these devices. Tuners...[Details]
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