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At present, ECG monitoring systems that mainly collect, analyze and diagnose ECG signals have been widely used, and have played a great role in the prevention and diagnosis of heart diseases. Howev...[Details]
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Recently, Huawei has taken another step forward in the field of smart audio and launched its second smart speaker product after the Huawei AI Speaker - Huawei AI Speaker mini. Compared with the Huawe...[Details]
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In modern scientific research and industrial production, digitally controlled DC current sources with high precision and good stability have been widely used. Most of the current sources used in the p...[Details]
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Frequency stability is an important technical indicator of the oscillation circuit. In general LC oscillation circuits, despite various frequency stabilization measures, the frequency stability can...[Details]
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Fast
recovery diode
FRD (Fast Recovery Diode) is a new type of semiconductor device that has been introduced in recent years. It has the advantages of good switching characteristics, short revers...[Details]
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On July 15, Xiaomi officially announced that it will add a new developer comment reply function to the Xiaomi App Store, which will allow developers to have direct conversations with users and s...[Details]
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In December 2015, nearly 200 parties to the United Nations Framework Convention on Climate Change reached the Paris Agreement at the Paris Climate Change Conference. The agreement makes arrangements ...[Details]
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Advanced virtual reality (VR) and augmented reality (AR) are playing a pivotal role in the professional world today, especially when combined with the sense of touch; in the coming era, the tactile...[Details]
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main menu: Figure 4-1 Main menu 1. Comprehensive testing The comprehensive test shows the measurement of DC current, DC voltage, AC voltage and ripple voltage, and calculates the voltage st...[Details]
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A traditional fuel vehicle requires about 500 to 600 chips, a mild hybrid vehicle requires about 1,000 chips, and plug-in hybrid and pure electric vehicles require at least 2,000 chips. This means th...[Details]
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1. Basic principles
A stepper motor is an actuator that is controlled by electric pulses and converts electric pulses (digital signals) into angular displacement.
Usually the rotor ...[Details]
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/******************************************************************* *Simulation receiving program, the function of this program is to receive data from the simulated serial port and then send this ...[Details]
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Today's portable applications integrate more and more functions. The general trend is that mobile phones are not only mobile phones, but also digital cameras (DSCs), mobile TV terminals, as well a...[Details]
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Suppressing the modulated AC noise of simple rectifier power supply
Some rectifier power supplies, even if electronic filters are added to suppress the AC ripple, will not produce any A...[Details]
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The number of smartphone manufacturers that have foldable smartphones in their series is steadily increasing. Samsung Galaxy Z Fold 3 and Galaxy Z Flip 3 are outstanding representatives, in ad...[Details]
Mobile and portable
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