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0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[Details]
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Some people think: as long as the program runs well, it doesn't matter how the original program is written. But this is absolutely not the case. Software is not completed in one go, and it is neces...[Details]
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1 Introduction
With the rapid development of my country's economy, the country has introduced a series of policies such as preferential policies, subsidy policies, and old-for-new policies, wh...[Details]
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UPS is an uninterruptible power supply (UPS). This device can ensure that after a power outage in the computer system, users can continue to work for a period of time and save files urgently, witho...[Details]
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In the field of video surveillance, video compression encoding formats have evolved from M-JPEG, H.263, MPEG4 to H.264. Currently, H.264 is the mainstream compression algorithm. Its biggest advantage ...[Details]
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Comparison of electrostatic testing between automotive electronics and ordinary electronic products
Electrostatic discharge is a natural phenomenon. When two materials with different di...[Details]
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Introduction: At present, the main grounding form of the low-voltage power distribution system in our city is only one TN-C grounding method. Nowadays, there are more and more types of electrical e...[Details]
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Integration of the secondary of redundant AC/DC power supplies has been largely ignored by semiconductor manufacturers. The result is a multitude of discrete components such as op amps, transistors, r...[Details]
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摘要：设计了一套基于CPCI总线，PCI9054桥接芯片和可编程逻辑器件(FPGA)的高速数据采集卡。FPGA作为本地主控芯片，根据工控机经PCI9054转发的采集命令，通过光纤接口实现与雷达接收机的通信。采用高速RAM缓存数据，采集的接收机测试数据的分析结果可在工控机上显示，从而实现了对雷达接收机性能的快速测试。该采集卡具有较强的通用性和可扩展性，详细介绍了高速数据采集卡的组成和工作原理、...[Details]
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MSP430F1121 and LCD driver chip PCF8576 connection program
#include "msp430x11x1.h"
#define uint unsigned int
#define uchar unsigned char
//Device address
uchar PCF8576=0x...[Details]
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1.
AC LED
is not a fundamental change in the device.
In other words, there actually does not exist an LED chip that works with an alternating electric field mechanism. The AC LED that is now a...[Details]
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Characteristics of
high-power LED
packaging
High-power LED packaging has been a research hotspot in recent years
due to its complex structure and process, and directly affects
the per...[Details]
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Among such interface chips, NXP's interface chips have the most complete and diverse functions, just like a restaurant provides meal A, meal B, and meal C, allowing users to choose and use them accord...[Details]
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LED chip
is
a PN
combination
formed
by rearranging the P-layer
semiconductor
elements and the N-layer semiconductor elements by electron
movement
. LE...[Details]
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The output voltage of the switching power supply will decrease when the load is short-circuited. Similarly, the output voltage will increase when the load is open or unloaded. In maintenance, the dumm...[Details]
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