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definition RF power meters are used to measure the power in RF circuits. We can choose different ways to measure power according to different applications. RF power is a critical parameter in many ap...[Details]
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The Jiangxi Provincial Energy Bureau recently issued the first batch of distributed wind power development and construction plans for 2019, including 39 distributed wind power projects with a total...[Details]
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Many devices and their control computers use RS 232 standard serial interface for communication. This paper designs and implements RS 232 serial communication data interceptor, which can effectivel...[Details]
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As people's daily life and work pace continue to accelerate, people are paying more and more attention to the convenience of information acquisition, mobile office and mobile entertainment. Wireles...[Details]
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In modern data acquisition and processing systems, expansion buses such as ISA, EISA, and MCA can no longer meet the requirements of high-speed data transmission, while the PCI local bus has become...[Details]
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Smart electronic fuse
For most non-synchronous rectification boost switching converters using inductors, there is a DC path between the input and output, as shown in Figure 1. The existence of...[Details]
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Basic parameters of electron tubes:
1. Filament voltage: V; 2. Filament current: mA; 3. Anode voltage: V; 4. Anode current: mA; 5. Grid voltage: V; 6. Grid current: mA; 7. Cathode access resistanc...[Details]
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Abstract: This paper presents a design method of using the internal current-type D/A converter and current/voltage conversion circuit of C8051FF330D to output 0~4V analog signal to control the output ...[Details]
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Radio Frequency Identification (hereinafter referred to as RFID) technology is a new technology developed in recent years. It is the product of the organic combination of radio frequency technology an...[Details]
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PIC timers are also used quite a lot. It is said that there are powerful software on the Internet to calculate the initial value, but I still calculate it manually. Summary————2013.8.27
PIC microco...[Details]
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This article introduces a switching voltage regulator based on the dedicated chip UC3842. In the motor speed controller, the power supply provides the base (gate) drive voltage of the power switch el...[Details]
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1. Measurement of DC voltage, such as battery, Walkman power supply, etc. First, insert the black test lead into the "com" hole and the red test lead into the "V Ω". Select the range larger than the e...[Details]
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Why did the Chinese home appliance market, which had been growing steadily in the past two years, suddenly decline? In recent days, the backstage of the home appliance circle has received a lot of ...[Details]
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1. Suggested solution
1.1 Introduction
The front-end computer room is the heart of the radio and television system and the distribution center for processing, distributing and transmitt...[Details]
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WiMAX Wave 2 specifications now support the use of multiple antennas to improve system performance in both the downlink and uplink. Systems configured with multiple-input multiple-output (MIMO) config...[Details]