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1. Introduction
With the rapid development of science and technology, the number of RF coaxial relays used in the aerospace field is increasing, and the requirements for their resistance to ha...[Details]
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Figure 18 Pulse structure of Bulletin 1557 inverter
The medium voltage inverter of A?B Company is Bulletin1557 series. The control mode adopts speed sensorless direct vector control. The...[Details]
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Although this sudden outbreak of the new coronavirus pneumonia has affected people’s normal life, it has also brought about opportunities and new life. Beijing Municipal Bureau of Human Resources a...[Details]
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Magnetoelectric instruments are widely used in the measurement of DC voltage and current. They are composed of a fixed magnetic circuit system and a movable part. As a widely used instrument, what ...[Details]
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MCS-51 high-precision A/D interface circuit--ICL7135
ICL7135 has a resolution of ±20,000, and has BCD code and STB selection signal output, which is very convenient to interface with microcomp...[Details]
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“The biggest disadvantage that the United States has in this tech race is its unwillingness to spend money,” James Andrew Lewis, senior vice president and director of the technology policy program at...[Details]
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According to foreign media reports, Apple's iPhone will increase the use of OLEDs produced by BOE's panel factory in mainland China, and it is expected to complete certification by the end of this ye...[Details]
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At first glance, the NCP1239 is a 16-pin device, which may be complicated to use. In fact, this circuit has a lot of design flexibility and is a very good controller that can help you solve the design...[Details]
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In 2020, Huawei will continue its “buy, buy, buy” pace. In April 2020, the application for listing on the Science and Technology Innovation Board of SiRuiPu, a chip company invested by Huawe...[Details]
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As a new type of particle size testing instrument, laser scattering particle size analyzer has been widely used in other powder processing and application fields. It is characterized by fast testing ...[Details]
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Atomic fluorescence spectrometry (AFS) is a new type of spectral analysis technology proposed and developed in the mid-1960s. It is a spectral analysis technology between atomic emission spectrometr...[Details]
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1. What is a frequency converter?
A frequency converter is an electric energy control device that uses the on-off function of power semiconductor devices to convert industrial frequency powe...[Details]
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At Computex 2019 in Taipei, Intel demonstrated how its PC platform delivers a comprehensive PC experience for today and tomorrow – from hardware and software innovations, new laptop prototypes, artif...[Details]
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Recording the S5PV210 startup and programming process information is very helpful for analyzing the system startup and programming process:
Information of burning through serial port:
OEMInitLIb is...[Details]
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According to media reports, BYD Group Executive Vice President Lian Yubo said in an interview with CGTN host Lian Yingchun that BYD will provide battery products for Tesla. Regarding this matter, ...[Details]