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When the WDP500-2A plane grating monochromator is used to test the emission wavelength of a high-power laser diode at different currents, the matching of the laser diode has the disadvantages of lo...[Details]
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0 Introduction
With the rise and continuous improvement of the solid-state lighting industry, light-emitting diodes (LEDs) have become an alternative lighting technology and are gr...[Details]
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According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[Details]
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A few days ago, I bought an 8LED flashlight in the market (the flashlight uses No. 5 batteries). Because I had other things to do, I didn't pay attention when purchasing it. When I got home and use...[Details]
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HL201A is a special thick film driver integrated circuit with a capacity of less than 75AGTR developed by Xi'an Power Electronics Technology Research Institute. The article explains the pin arrange...[Details]
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The battery and its management system are one of the key technologies of electric vehicles. In the past few years, most companies have encountered embarrassment in the development of electric vehic...[Details]
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The cruise control system (CCS) of a vehicle is also called a constant speed driving system. It is an electronic control device that uses advanced electronic technology to automatically adjust the ...[Details]
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Some experience we have accumulated when debugging a system using Keil C
1. Since Keil C does not support Chinese very well, the displayed cursor will be inconsistent with the actual cursor positi...[Details]
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Reference sources are widely used in various analog integrated circuits, mixed-signal integrated circuits and system integrated chips. Their accuracy and stability directly determine the accuracy of t...[Details]
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1 Introduction
With the rapid development of computer systems and communication equipment, the application scope of uninterruptible power supply (UPS) is becoming wider and wider. The demand...[Details]
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Modern smartphones are sleek and powerful, and while the size of the phone varies depending on the model, in general, a state-of-the-art device packs a lot of features into a package that measure...[Details]
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This design uses AT89C51 microcontroller as the core and 4*4 matrix keyboard as input to control the start, stop, speed and direction of the DC motor, completing the basic requirements and the requ...[Details]
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LCD display backlights, general lighting fixtures, street lights, etc. require multiple high-brightness LEDs to be driven simultaneously. These LEDs need to be connected in series and parallel combina...[Details]
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1 Introduction
As the mandatory national standard GB15579.10-2008 is about to be implemented, how to improve the electromagnetic compatibility (EMC) of inverter welding machines to meet the ...[Details]
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The energy-saving concept of LED display screens has quietly become a highlight that attracts consumers' attention and is also the reason for its explosive growth in recent years. Of course, after...[Details]