First, here are the picturesThis cheap USB HUB is just this, and it is basically unusable. It keeps cutting off and on when charging. It also says that each port is 500mA, which is skeptical. It says ...
I'm wondering, when I was drawing a PCB, the top wiring was red, but it turned green once it was connected to the pad. What's going on? It's fine if it's not connected. The bottom blue wiring is also ...
It's nothing, I just saw the forum statistics that the number of water versions today has reached 199, so I came to make it the 200th, which is also a small historical moment....
When using AD to sample the power frequency voltage signal, after conditioning, the signal is sampled at 0.2V-2.8V for 50us. Because multiple zero-crossing signals may be sent by mistake due to interf...
[i=s]This post was last edited by tianshuihu on 2018-1-11 22:59[/i] [i]Foreword[/i] [i]First of all, I would like to say sorry to the administrator @[color=#333333][backcolor=rgb(229, 237, 242)][size=...
Pulse oximeters, non-invasive instruments used to monitor a patient's blood oxygen saturation, are benefiting from moving away from expensive discrete component solutions toward more integrated design...[Details]
With the continuous improvement of living standards and the increase in the proportion of urban aging, the household use of medical electronic equipment has gradually become a trend. Among them, the...[Details]
At present, a hot spot for the research and development of hearing aids abroad is concentrated in China. To be more precise, it is based on the research of Chinese language and speech, and the deve...[Details]
In the field of software development, the most critical but also the most unpredictable phase is the debugging phase. There are many factors that play a role in the process of software debugging, a...[Details]
WiMax technology needs to demonstrate its advantages in specific application scenarios in order to gain market recognition, which requires application testing to measure system performance para...[Details]
In view of the problems in the actual FPGA development process, such as difficulty in locating faults, long compilation time after repeated code modification, and inability to confirm fault solutio...[Details]
As microcontrollers become less expensive and more powerful, electrical designers are finding it more cost-effective to use multiple small controllers in both single-board and multi-board systems. ...[Details]
summary
Theoretically explains how to set up a PFC boost regulator using a current sensing transformer with the UCC3817 control IC.
1. Schematic
The schematic diagram is show...[Details]
A well-designed electronic load is not designed just for use in the lab; it should be carefully designed and built to test actual power systems. This is true for military portable systems, such as ...[Details]
1. Introduction
The UCC28051 reference design is a 100W offline AC/DC voltage converter with power factor correction (PFC). This power module design is intended to illustrate how to proper...[Details]
Among the many candidate standards for China's mobile TV, the CMMB standard proposed by the Broadcasting Science Research Institute of the State Administration of Radio, Film and Television is aime...[Details]
Some application designs have higher requirements on the speed at which the system's switching power supply can provide voltage output. Figure
1
shows
the
bootstrap
...[Details]
Fetal monitoring is an important means to ensure the safety of perinatal mothers and fetuses and achieve eugenics. Intelligent fetal monitoring is a monitoring method that analyzes the health stat...[Details]
1 Introduction
Generally, when transmitting information over short distances through electrical signals, baseband signals can be directly transmitted. However, over long distances, baseban...[Details]
Lifting wavelet transform not only has the advantages of traditional wavelet multi-resolution, but also simplifies the operation and is easy to implement in hardware. Therefore, it is widely used in d...[Details]
Talking
京公网安备 11010802033920号
EEWORLD
