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The circuit shown in the figure is a three-digit tachometer used to measure low frequency signals with a repetitive time interval of 0.235 to 15 seconds. The tachometer has a speed range of 4 to 255 r...[Details]
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Sensors have made inroads into automotive, medical, industrial and aerospace applications. But you may not see anything changing yet. Growing demands for safety, convenience, entertainment and efficie...[Details]
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Electrocardiogram is an important means of diagnosing heart disease. However, due to various reasons, it is difficult to capture abnormal electrocardiograms with ordinary electrocardiographs. Although...[Details]
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When it comes to ATX power supply, people will think of two "classic" ICs: pulse width modulation chip TL494 and voltage comparator LM339. The new dedicated control chip AT2005B has the functions ...[Details]
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0 Introduction
With the rapid development of modern science and technology and the progress of society, service robots are becoming more and more closely connected with people's lives,...[Details]
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0 Introduction
The peak value of AC voltage refers to the maximum value (positive peak value) or minimum value (negative peak value) of AC voltage, which is a very important parameter in t...[Details]
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Counterfeit and shoddy goods have always been a public nuisance in the world. With the continuous improvement of the level of counterfeiting technology, the scope of counterfeited products is getti...[Details]
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1 Introduction
Combination weigher is also called selection combination weighing instrument. It is composed of multiple independent weighing units with feeding and discharging structures. ...[Details]
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1 H4006 chip introduction
The operating frequency range of H4006 is 10～15MHz, and 13.56MHz is usually selected for identity recognition. There is a 64-bit programmable memory on the ch...[Details]
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Internet radio is becoming a new bright spot in the consumer electronics market, because it truly realizes high-definition listening in any environment around the world. Compared with traditional r...[Details]
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introduction
In modern society, portable systems (such as mobile phones and personal media players) are evolving into comprehensive multimedia and communication systems. New applications, ...[Details]
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Embedded systems used in real-time control systems often need to measure analog quantities. The usual method is to use MCU to generate acquisition control timing to control the analog-to-digital co...[Details]
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With the rapid development of digital signal processing technology, digital signal processing technology has been widely used in many fields (such as communication, radar, sonar, etc.). In m...[Details]
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1 Introduction
As we all know, it is of great significance to rescue patients with critical emergencies and sudden death caused by accidental injuries in a few minutes. The traditional art...[Details]
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In portable product design, analog switches have always been used mainly as audio signal switchers. Later, with the popularity of dual-SIM dual-mode mobile phones, analog switches became a must-hav...[Details]
Mobile and portable
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