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1. Introduction to OTA testing
1.1 Passive and active testing of mobile phones
Currently, more and more attention is paid to the testing of the radiation performance of the whole machine in ...[Details]
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GSM/3GSM radio access technology has dominated the global cellular communications market with more than 2.5 billion users and the number of users is still rising. In order to keep pace with the develo...[Details]
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Servo motors are control motors, which are divided into DC servo motors and AC servo motors. Due to the advantages of AC servo motors such as small size, light weight, large torque output, low iner...[Details]
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On January 4, Estun disclosed a research report, in which the company stated that the 2023
industrial robot
shipment target is 25,000 units. The main downstream applications of the products...[Details]
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Hysteresis is an important static indicator of the sensor, which has a great impact on the test accuracy of the sensor. Similarly, the tuning fork level switch also has hysteresis. If it is not han...[Details]
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The automotive domain controller is an integrated controller used to manage and control multiple embedded electronic control units (ECUs) in the automotive electronic system. As the hub of the enti...[Details]
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Mouser Electronics, an electronic component distributor that focuses on introducing new products and providing a large inventory, announced that it will work with ADI to hold an online seminar with t...[Details]
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Background Overview
Against the backdrop of China's growing awareness of environmental protection, the government has introduced new policies and regulations on environmental protection to reg...[Details]
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uchar SDA_Return(void)//0-low level 1-hign level { uchar flag; uchar oldSREG=SREG; SREG&=~(_BV(7)); DDRC&=0xfd; PORTC|=_BV(PC1); if((PINC&_BV(PC1)) !=0)//0...[Details]
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Introduction: PIC Microcontroller Application Questions and Answers 1. How to choose the crystal in the PIC microcontroller oscillation circuit? For a high-reliability system design, the choice of ...[Details]
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Once when I was writing an interrupt handling function myself, I did not write the return value of the function. It compiled normally during make, but an error was reported during the run process. So...[Details]
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TFTP (Trivial File Transfer Protocol) is a protocol in the TCP/IP protocol suite used for simple file transfer between clients and servers. It provides simple, low-cost file transfer services and its...[Details]
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Detect the quality of AC three-phase motor
1. Use a megohmmeter, a 500V megohmmeter will do, and measure the insulation resistance of the wires on the three terminals to the motor casing. If i...[Details]
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Concept: A new energy vehicle that uses a power battery as a storage power source to provide electrical energy to the drive motor, drive the motor to operate, and thus propel the electric vehicle f...[Details]
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Jiangsu Kunlun Interconnected New Energy Group Co., Ltd. (Kunlun New Energy) is a new energy technology company focusing on new energy storage and digital energy comprehensive solutions. The co...[Details]
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