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1. Influence of Filament Voltage Amplifier
There is a capacitor Cf between the gate and the filament of the electron tube. The 50 Hz AC filament voltage will cause leakage current IA between the ...[Details]
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On the evening of March 17, Redmi held a new product launch conference today, releasing the Redmi K series Dimensity dual flagships and other new products, the world's first Redmi K50 equipped...[Details]
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According to foreign media reports, cameras are gradually becoming the main visual organs of vehicles, and the surround view system including several satellite cameras can provide the vehicle with a ...[Details]
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A microcontroller is a single-chip microcomputer that integrates the main parts of a microcomputer on one chip. Microcontrollers were born in the mid-1970s. After more than 20 years of development, th...[Details]
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1. Introduction
Radio frequency remote control will gradually replace traditional infrared remote control due to its advantages of long distance, barrier-free, low power consumption, and support ...[Details]
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CNC machine tools, or computer numerical control machine tools, are automated machine tools controlled by computers. CNC machine tools are widely used in mechanical processing, mold manufacturing, ...[Details]
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On January 10, at the 2020 China Electric Vehicle Hundred People Forum, Jiang Jingfang, senior vice president of Bosch Chassis Control Systems China, shared Bosch's progress in commercializing autono...[Details]
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Thermal power plants and large industrial boilers usually add a small amount of phosphate to the boiler water to prevent the formation of calcium and magnesium scale. Insufficient phosphate concent...[Details]
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Anyone who has done development work has had this experience: testing a switching power supply or hearing the uninvited sound of high-voltage leakage or high-voltage arcing from a similar product duri...[Details]
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The 15-segment LED display is made with three chips and the circuit is very simple.
When the power supply is 5V, the input voltage for all lights to be on is Vp-p 2.5V; when the power supp...[Details]
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New STEP helps create the world's first lithium-metal
battery production line
On the busy production lines, many robots are seen completing the sorting work in a fast ...[Details]
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Abstract: This application note presents a reference design for a nonisolated LED driver intended to operate directly from a 400VDC input. The design drives a string of 27 WLEDs (white LEDs) or, op...[Details]
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After 30 months of pandemic-induced disruption, the PC supply chain has returned to normal — and procurement team leaders at large companies no longer have to worry. Or rather, Dell's view of supp...[Details]
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In the previous lesson Source Files (.c/.h/.s), Pi Ziheng systematically introduced source files to everyone. Source files are typical input files in embedded projects. So are there other types of ...[Details]
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In the M1 iPad Pro released early this morning, the new device uses a new chipset and an improved camera system, as well as a new person centering function, which greatly improves performance. The ...[Details]
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