The USB Type-C interface, developed by the USB -IF organization, was recognized by Apple, Google, Intel and other manufacturers as early as 2014, and related products were launched in 2015. Compared w...
In "Rectification Miscellaneous (VII)", we introduced some voltage doubler rectifier circuits. Those voltage doubler rectifier circuits are all derived from the half-wave rectifier circuit as shown in...
Things to note when selecting and using a POE switchThe power supply of the POE switch is equivalent to the power cord. It supplies power to wireless AP, Internet phone, network camera and other devic...
When you get home, your shoes automatically turn into lazy slippers. When you are tired, you can easily kick off your shoes when you enter the house.How to achieve it?There is an opening in the middle...
[i=s]This post was last edited by 1nnocent on 2021-5-14 09:32[/i]I have learned STM32F103VCT6 before, but I just modified the program and didn’t learn it in depth. I didn’t understand specifically how...
When I open the schematic and click on libraries, a problem occurs. The files cannot be loaded. All the files in the box are red and cannot be deleted. Please solve it. [img]https://gss0.baidu.com/9vo...
China Energy Storage Network:
Guangdong has always been the vanguard, pioneer and experimental zone of reform and opening up. Since the construction of the national electricity spot market st...[Details]
With the vigorous development of Industry 4.0, higher requirements are put forward for system power supply units, such as short-circuit protection, ripple noise, static power consumption and other pe...[Details]
Airbags have been standard equipment on vehicles for many years and are designed to protect the safety of vehicle drivers and have indeed saved countless lives. However, most airbags rely on standard...[Details]
The 2020 Navigant Research autonomous driving rankings are released. Those who know about autonomous driving should be very familiar with the above picture, which is the autonomous driving competi...[Details]
Nondestructive Methods
Failures in medical devices during use are often caused by some type of latent defect. If the failure is not electronic (even though it sometimes is), the latent de...[Details]
(1) The surface roughness of the workpiece is too large, resulting in poor coupling between the probe and the contact surface, low reflected echo, or even no echo signal can be received. For in-ser...[Details]
The effective value (rms) is a measure of the amplitude of an AC signal. Practically defined, the effective value of an AC signal is equal to the amount of DC required to produce the same amount of...[Details]
The figure above is the schematic diagram of the IDD measurement circuit. In normal operation, K1 is closed and the current unit is mA; in low power consumption, K1 is open and the current unit is ...[Details]
LED Lamp is mainly composed of five materials: bracket, silver glue, chip, gold wire and epoxy resin.
1. Bracket: 1) Function of the bracket: used for conduction and support 2) Composition of ...[Details]
1. Analysis of the advantages and disadvantages of 51 series microcontrollers The 51 series is the most widely used single-chip microcomputer. Due to its reasonable hardware structure, standardized i...[Details]
The Window Watchdog (WWDG) is often used to monitor software failures caused by external interference or unforeseen logic conditions that cause the application to deviate from the normal operating seq...[Details]
Excessive heat or improper application can greatly reduce the performance of LED light sources.
PPTC components
are made of polymer positive temperature coefficients (Polymer Positive Temperature...[Details]
The ESD protection components used in these portable electronic products must meet the following requirements:
First, to meet the requirements of such electronic products to be light, compact and e...[Details]
Since September, major manufacturers have launched a series of new phones, and October seems to have continued this trend. Major manufacturers seem to be preparing to launch new products on th...[Details]
01
Information security requirements
This chapter mainly introduces the information security requirements from four aspects: hardware security, system security, communication security, an...[Details]
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Microcontroller MCU
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