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Today, with the advent of high-speed computer CD-ROM drives , we have a wide range of choices for a variety of exciting multimedia software. At the same time, video games, interactive audio and music...[Details]
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Abstract: This paper mainly discusses the design and implementation of the key technology M2M gateway for connecting wireless sensor networks with M2M platforms. Wireless sensor networks (WSN) have t...[Details]
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A battery cell is the smallest unit of a battery system. Multiple battery cells form a module, and multiple modules form a battery pack. This is the basic structure of a car power battery. A batter...[Details]
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Using PWM output to drive a brushed DC motor: Loss thinking
Since PWM drive is a pulse drive, its power consumption is only the average of the power consumption during the voltage application ...[Details]
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Many cities charge congestion fees to manage road congestion. However, some cities in the UK exempt vehicles with high emission efficiency or electric vehicles from emission fees in addition to conge...[Details]
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Switching power supplies have been widely used for their high efficiency and small size. Traditional switching power supplies generally use voltage-type pulse width modulation (PWM) technology, w...[Details]
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In the past, set-top boxes were designed and produced individually according to the special standard requirements of CA, browsers, etc. adopted by operators, which resulted in set-top boxes having ...[Details]
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Although the CAN bus has powerful anti-interference and error correction and retransmission mechanisms, it is currently widely used in industries such as new energy vehicles, rail transit, medical ca...[Details]
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On the evening of July 18th, Beijing time, according to the US technology media 9to5 Mac, Apple sent some executives to South Korea to meet with Samsung. The topic of discussion between the two sides...[Details]
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1. Instrument model: R&S (Rohde & Schwarz) FSV40 spectrum analyzer. 2. Testing process: The instrument was turned on for self-test, but the self-test and self-calibration could not pass normally, and...[Details]
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The South Korean government said on Tuesday it will invest about 1.1 trillion won ($896 million) to develop "highly automated" car technologies to lead the growth of the auto market, according to Yon...[Details]
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On October 15, Jucan Optoelectronics released its third-quarter report stating that from July to September 2021, the company achieved operating income of 518 million yuan, a year-on-year increase of ...[Details]
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The term "ubiquitous power Internet of Things" has attracted much attention since it was proposed at the beginning of this year, and more and more companies have chosen to join the development tren...[Details]
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Abstract: Combining the advantages of digital frequency synthesizer (DDs) and integrated phase-locked loop (PLL), a high-resolution, low-spurious, wide-band frequency synthesizer composed of DDS chip ...[Details]
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The 90th Paris Motor Show was held at the Porte de Versailles International Exhibition Center from October 14 to October 20. The Paris Motor Show originated from the International Automobile Salon ...[Details]