I am planning to buy a multimeter. Most of the use scenarios require testing voltages of 600-900V (occasionally overvoltages of 1000+), so I have been using Fluke's 15B+. The meters in the company are...
[i=s]This post was last edited by tiankai001 on 2019-2-14 11:35[/i] [font=宋体][size=4] [/size][/font] [font=宋体][size=4][b] [color=#000000]I just saw a post on the forum that introduced the development ...
Digital Integrated Circuit Analysis and Design : https://training.eeworld.com.cn/course/6150Integrated circuits (ICs) are already ubiquitous, and most of them are digital ICs. This course allows you t...
ESD requires a discharge path
It is usually discharged into the ground through resistors and capacitors.However, the device has an insulation withstand voltage requirement. If the resistor and capacit...
[i=s]This post was last edited by aq1261101415 on 2022-7-15 17:51[/i]Hello everyone, I want to ask now I have two BUCK circuits, the expected output is 5V/2A and 3V3/3A, they share a common input 12V,...
High-pass filters can be implemented by passive RC and active KRC circuits. The cutoff frequency is 0.1Hz. Figure 1 is a passive RC circuit with a design follower connected to it. Figure 2 is a high-p...
Apple released the iPhone 13 series of mobile phones in the early morning of September 15. Due to the unexpected price reduction of 800 yuan and the upgrade of processor, camera module and battery, i...[Details]
The figure shows a single current source mode drive circuit. In this single current source mode, PMOS tubes M5 and M6 form a current mirror, which can provide a constant current for the output circui...[Details]
DC tolerant current transformers have long been used to sense AC current in smart meters, but they have certain disadvantages and can be expensive. For some applications, resistive shunts are bette...[Details]
There are not many types of flow meters selected for air conditioning water measurement. Ultrasonic flow meters are one of the most commonly used types. How can we correctly select ultrasonic flow met...[Details]
This time we are going to talk about a smart home technology: home wireless radio frequency technology, which is suitable for houses that have been renovated but not pre-wired.
What is wi...[Details]
From June 4 to 6, 2023, the China International Information and Communications Exhibition (hereinafter referred to as the "PT Exhibition") with the theme of "Opening the Information Artery to Create ...[Details]
The application of PWM can be said to be very wide, controlling motor speed, light brightness, communication modulation and many other fields. My friends have asked me a lot about PWM, and I have bee...[Details]
If we want to drive a high-voltage MOS tube , we need to use a transformer drive method and an integrated high-side switch. Both solutions have their own advantages and disadvantages and are suitable...[Details]
A netizen revealed that he tried to ask OPPO's voice assistant Breeno when ColorOS 12 will be released. Unexpectedly, Breeno actually answered and gave a specific time: 3 pm on September 13th...[Details]
AVIC Securities: The epidemic has affected global packaging and testing capacity, and the trend of localization of supply chains of mainland enterprises has accelerated June 6 Short term: Under the c...[Details]
The material level switch is a widely used material level measuring instrument for measuring powder and solid particles. Many instrument users do not know how to wire the equipment correctly, which o...[Details]
Cx51 process control has three basic structures: sequence structure, selection structure and loop structure. 1. Sequential structure The sequential structure is the most basic and simple programmin...[Details]
With the increase in the use of cars in China, the construction of highways is developing by leaps and bounds, and the complexity of roads is increasing. These factors have brought difficulties to the...[Details]
Simple knowledge of AD
AD is the process of converting analog quantity into digital quantity, which is generally divided into four steps: sampling, holding, quantization, and encoding.
Since a...[Details]
Analog electronics
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