A battery pack with 4 to 6 strings can achieve fast charging with a buck-boost or buck-boost circuit. In addition, the introduction of USB PD3.1 supports 48V output voltage and 240W output power. With...
I got a book in this book grab event: Here is the 3D photo:I got this book by following others. It is a bit difficult for me and I need to study hard for a while! ! ! I want to say that I followed oth...
CSP ( chip scale packaging ) technology is driving the development of packaging and printed circuit boards towards smaller size. Wafer-level CSP refers to silicon wafers with redistribution film layer...
Please help recommend a DC/DC suitable for the following parameters, thank you! [color=#000][backcolor=rgba(0, 0, 0, 0)][size=10.5pt] 1. Voltage: Input voltage is greater than about 40V (40V, 45V, 50V...
I recently looked at several circuit diagrams and found that the COM terminals of chips or module circuits are sometimes connected to GND. I also saw a GND marked as COM in RS232. I am not a professio...
I have been working on a UCOS ii program these days, which is based on IAR software. There is one thing I don't quite understand. At the beginning of the program, after stacking the various stacks, it...
1 Introduction
The high temperature tester is mainly used for temperature tracking measurement and data acquisition during the heating process. By systematically analyzing the test data, the...[Details]
introduction
In the discharge process of tokamak plasma physics, the study of rupture and sawtooth is of great significance. Rupture and sawtooth exist in most tokamaks. Rupture is a notew...[Details]
introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
1 Introduction
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[Details]
Abstract: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[Details]
hint:
The number of speakers and their spacing limit the sound field of a portable stereo system.
Spatial audio attempts to artificially recreate the experience of listening to sounds i...[Details]
Today, with energy becoming increasingly scarce, the utilization of natural energy has become the focus of people's attention. Among various natural energies, the endless solar energy is highly fav...[Details]
Liquid crystal display (LCD) panels have a wide range of applications, from small portable electronic devices to large fixed devices, including digital cameras, laptops, personal data assistants, d...[Details]
1 Basic Features
In computer control systems and various intelligent instruments and meters composed of single-chip microcomputers (or microprocessors), various external analog signals must be ...[Details]
Analysis of the three core aspects of digital TV transmission standards
According to the differences in regionality, transmission method and modulation method, the transmission method needs to...[Details]
When the so-called "copycat phones" that flood the domestic mobile phone market move towards large screens, stereo amplifiers, touch controls, and even GPS navigation and mobile TV, the homogeneity...[Details]
Every time I go home and walk up the stairs, I am always scared. The corridor lights are often broken, and no one changes the bulbs, or they are not smart enough and need to be operated manually. E...[Details]
The capacity of a battery depends on the amount of charge and discharge, in addition to some factors of the battery itself. Obviously, if the charge and discharge of the battery can be recorded all...[Details]
1 Introduction
Power supply ripple will interfere with the normal operation of electronic equipment, causing malfunctions such as computer crashes, data processing errors and control system fa...[Details]
Power technology
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