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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
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[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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LED is now known as the fourth generation of light sources. High-power LED has many advantages over traditional light sources in outdoor lighting.
1 LED lamps have high light efficiency
C...[Details]
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This article focuses on closing the feedback loop of an isolated power supply using a TL431 shunt regulator. The article discusses a method to extend the bandwidth of the power supply control loop ...[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 principles to be followed are as follows:
(1) In terms of component layout, related components should be placed as close as possible. For example, clock generators, crystal oscillat...[Details]
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Abstract: Based on the analysis of the characteristics of the IRIG-B (DC) code type, a design method for IRIG-B (DC) time code decoding is proposed. This method consists of a small number of periph...[Details]
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Traditional synthesis techniques are increasingly unable to meet the needs of today's very large and complex FPGA designs implemented in 90nm and below process nodes. The problem is that traditio...[Details]
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The Challenge:
Protect historical relics by monitoring environmental factors without affecting their original appearance.
The Solution:
Developed a monitoring system for 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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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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Battery Capacity Meter
The electromagnetic capacity meter circuit is specially used to estimate the capacity of cadmium nickel batteries and judge their charging effect.
The ...[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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Solar water heating, solar air conditioning, solar or wind powered street lights... The energy required for office buildings, residential communities, resort hotels, factories, schools, transportat...[Details]