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Medical staff place the wearable device on the patient's chest to capture breathing-related sounds throughout the lungs. Image source: Northwestern University Northwestern University researchers ha...[Details]
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The simulation schematic diagram is as follows and the source program of the microcontroller is as follows: #include reg51.h sbit wr=P3^6; sbit rd=P3^2; sbit key0=P1^0; sbit key1=P1^1; sbit k...[Details]
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From a power budget perspective, the RF power amplifier (RF PA) powered directly by the battery is an important component to consider. Traditionally, the RF power amplifiers used in the CDMA/WCDMA ...[Details]
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The performance of the microphone is an important factor affecting the voice wake-up rate, while the performance of the speaker will affect the interruption wake-up rate and the user's subjective e...[Details]
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2 Experimental modal analysis
Experimental modal analysis is a combination of several engineering disciplines. It obtains the modal parameters of the system: natural frequency, vibration mode, mo...[Details]
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NJU7662 pin configuration and internal structure diagram
NJU7662 is a voltage reversal integrated chip. It can output negative voltage or 2 times positive voltage when inputting positive voltage...[Details]
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The "OFweek 2024 (13th) China Robot Industry Conference" hosted by OFweek, a Chinese high-tech portal, and organized by OFweek Robotics
was
successfully held in Shenzhen from April 18 to 19...[Details]
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Abstract: This paper
analyzes the common problems in laboratory calibration of current transformer errors: reverse polarity, wrong ratio, secondary open circuit, abnormal error displa...[Details]
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Constant current sources are widely used in various measurement electronic circuits and sensor electronic circuits. They are irreplaceable test units in switching power supplies, signal detection, ...[Details]
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The basic knowledge of the two main types of oscilloscopes has been briefly introduced to everyone. So are you familiar with the operation of oscilloscopes? It is necessary for everyone to take a loo...[Details]
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The picture shows a standard battery replacement consisting of SW399.
The circuit shown in the figure is a standard power supply with an output voltage of 1.01V, which can replace the standard b...[Details]
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Dalian Pinjia Group launches 400W automotive electronic water pump solution based on Infineon products On March 9, 2023, Dalianda Holdings, a leading semiconductor component distributor committed t...[Details]
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“Turn the phone’s brightness to the brightest and watch a row of numbers on a black background from dark to bright. If you can clearly see the darkest number, it means it’s a top-level screen. If...[Details]
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The key issue of LED street light decay lies in temperature, but LED street lights usually fail in this link. Since the luminous power of LED street lights is greater than that of household lamps,...[Details]
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As the domestic passenger car market enters the traditional peak sales season of "Golden September",
the retail penetration rate of
new energy
passenger cars has exceeded 50% for three conse...[Details]