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The parametric transducer system is mainly composed of a PC, an ultrasonic transmitting circuit, an acoustic wave receiving circuit, a transmitting transducer, a microphone, and a data acquisition ca...[Details]
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1. Introduction
With the continuous development of information technology and the improvement of people's requirements for comfort and convenience in daily life, information appliances, smart ...[Details]
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At present, there are two main types of display screens according to the data transmission method: one is a real-time video screen that displays the same content as the computer; the other is an indep...[Details]
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To this day, thermal analysis of white LEDs remains an unfinished science. Most LED lamp and luminaire manufacturers rely on inadequate, inaccurate or ambiguous data to determine the performance of t...[Details]
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1. Complementary PWM output
Figure 1 below: Q1 and Q2 MOS tubes form a bridge arm, and the two tubes cannot be turned on at the same time. So, if both tubes are controlled by PWM waves, the tw...[Details]
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Huawei launched the nova 8 in China in December last year, and the phone has now entered its first international market - Russia. The Huawei nova 8 international version is not equipped with ...[Details]
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The ground resistance measuring instrument consists of a hand-cranked generator F, a current transformer LH, a rate switch S, an adjustment potentiometer RP and a galvanometer M. All the mechanisms a...[Details]
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The rise of the concept of intelligent lighting has made LED lighting more popular. The basic principle of the intelligent lighting system is that the user gives instructions to the terminal module...[Details]
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As shown in the figure, this is a light-off reminder circuit. The circuit consists of a monostable delay circuit, a drive circuit, a buzzer, a light-emitting diode, etc. The output signal of the mo...[Details]
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On April 11, Changying Precision released its 2019 annual report. The company achieved revenue of 8.655 billion yuan, a year-on-year increase of 0.34%; the net profit attributable to shareholders of ...[Details]
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Li Auto plans to be officially listed on the Nasdaq market on the evening of July 31, Beijing time, with the stock code "LI". This will be the second domestic "new car-making force" to be listed in t...[Details]
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The recent internal circulation of the power battery industry is unimaginable. In the past, there were magic cube batteries that changed the battery structure, CTC/CTB technology, and in the latter, ...[Details]
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New energy vehicles are entering the "first year of silicon carbide". As China's first and the world's third integrated R&D and manufacturing platform for the entire silicon carbide industry chain, H...[Details]
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At the third "Core Power Beijing" Zhongguancun IC Industry Forum Summit held today, Jiang Guangzhi, deputy inspector of the Beijing Economic and Information Technology Bureau, mentioned in his speech...[Details]
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The auto-coupling step-down starting control cabinet is an electrical device widely used in the industrial field, mainly used to achieve the step-down starting and normal operation of the motor. It...[Details]
DSP and ARM Processors
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