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As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
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introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[Details]
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1 Introduction
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[Details]
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The most important components of new energy electric vehicles are power batteries, electric motors and energy conversion control systems. The power battery must achieve high performance such as fas...[Details]
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High specific energy lithium/thionyl chloride (Li/SOCl2) batteries are widely used in multi-functional intelligent meters (such as smart meters, water meters, etc.) as real-time clocks and memory b...[Details]
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1. Self-test of lithium battery capacity
The nominal capacity of the CECT9898 OEM mobile phone lithium battery is 3800mAh, and its battery volume is comparable to the 1500mAh battery of ot...[Details]
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0 Introduction
For a long time, rats have caused great trouble to family life and agricultural production. However, existing mechanical methods, chemical methods and biological control methods all h...[Details]
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CAN (Controller Area Network) is a serial communication network that effectively supports distributed control and real-time control. It has the advantages of high reliability, low cost, flexible confi...[Details]
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With the development of military equipment, its functions are becoming more and more powerful, the equipment is becoming more and more complex, and the requirements for test systems are becoming highe...[Details]
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In the field of power supply controllers, digital power supplies face two major challenges. The first is flexibility, which is actually what engineers expect from digital power supplies. They alway...[Details]
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1. Experimental tasks
A digital voltmeter is designed using the single-chip microcomputer AT89S51 and ADC0809. It can measure DC voltage values between 0 and 5V and display four digits, but ...[Details]
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Angle sensors are often used in measurement and control systems to collect various angle parameters or measure the speed of rotating mechanisms. At present, some angle sensors with mature technolog...[Details]
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Beijing time, June 28 evening news, Qualcomm (Weibo) CEO Paul Jacobs said on Wednesday that he would not rule out the possibility of building a chip factory or using the company's cash to ensure the s...[Details]
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Advantages such as small form factor, low power consumption and fast turn-on time have led to the
widespread adoption of
high-brightness LEDs
in today's automobiles. The initial application...[Details]
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The gain controlled amplifier circuit is located in the forward amplification path, and its gain changes with the control voltage. The basic components of the control voltage forming circuit are the A...[Details]