May I ask, how is the value of R1 in the above figure determined? Is it the current of 110V/Zenergizer 1N4742? Then what should the current of Zener 1N4742 be? Also, after determining R1, the current
[font=微软雅黑]It has been more than a month since I left ZTE, and now I have joined a well-known Internet company. In the new environment, I look back on my three-year work experience at ZTE and have som
[font=楷体, 楷体_GB2312][size=5]I am not a very good welder and it is a bit embarrassing!!! Today I welded a few 0402 resistors. Because the components were too close, one of them failed to be welded. It
I am working on an image acquisition system and want to use FIFO as a cache. However, the image keeps scrolling. I know that I have many problems. For example, when I control the reading and writing o
It passed the second round of review on June 15th, and I hurriedly placed an order, and finally received it today. So show it:
1. Unboxing2. Front and back of the development board
3. The most critica
[b]When designers think of passive components, they think of the manufacturing tolerances of inductors and capacitors, which are typically ± 20% or ± 10%. This is true in theory, but not in practice.