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How much remaining battery is best for charging a mobile phone without damaging the battery?With the continuous development of technology, mobile phones have become an indispensable part of our lives. With the increasing frequency of mobile phone usage, the reasonable use and charging methods of batteries have also become increasingly important. In this article, we will delve into the best timing and correct charging habits for mobile phone charging, helping readers better protect their phone batteries and extend their battery life.Firstly, we need to understand the types of mobile phone batteries. Modern mobile phones mainly use lithium batteries, which are more advanced than previous nickel cadmium batteries, have no memory effect, and can be charged at any time. Therefore, we no longer need to wait for the phone's battery to be extremely low before starting charging, as in the past. On the contrary, the scientific charging method is to start charging when the battery level is not l...
2024
The desktop power adapter mainly has the following characteristics:48W Desktop Power Adapter 1. Multiple output voltage rangesDesktop power adapters have multiple output voltage ranges and can adapt to various device requirements. The common output voltage ranges include 5V, 9V, 12V, 24V, etc., which meet the power supply requirements of different devices.2. High output powerDesktop power adapters have high output power, with most products having an output power of over 10W, which can meet the power needs of most devices. And it can maintain a relatively stable output voltage even when working at full load, without affecting the normal operation of the equipment.3. High conversion efficiencyDesktop power adapters have high conversion efficiency and can convert input AC power into the DC power required by the device. The conversion efficiency reaches over 80%, which can effectively reduce energy loss and improve power utilization.4. Good stability and high safetyDesktop power adapters...
1.IntroductionSwitching power supply may experience high or low output voltage during use: There is a rated voltage in the switching power supply. If the rated voltage is exceeded, it may exceed the withstand voltage value of the output capacitor, causing the power supply to heat up, breakdown, burn or even catch fire. Therefore, different types of protection circuits are designed. When the control circuit fails or other faults cause a voltage increase, the output of the power supply is turned off to protect the load and improve the reliability of the system.2. Common methodsThe following introduces several common principles and advantages of overvoltage protection circuits:(1) Output overvoltage protection circuit oneThis scheme uses a combination of a voltage regulator and an optocoupler to control the primary control IC to stop working and achieve overvoltage protection by relying on the conduction of the optocoupler; When an external voltage higher than the normal output voltage r...
In electronic devices and systems, the power supply is a very important component, responsible for providing the electrical energy required for the normal operation of the equipment. There may be differences in power specifications and standards among different regions and countries, among which American linear power supply is a common power specification widely used in regions such as the United States and Canada. This article will introduce the characteristics, applications, and differences between American standard linear power supplies and other power supply specifications.American standard linear power adapterThe characteristics of American standard linear power supplyAmerican standard linear power supply is a power supply that converts alternating current into direct current, and its characteristics mainly include the following aspects:1. High safety: The American standard linear power supply adopts linear regulator technology, which has lower output ripple and noise, and also h...
Low frequency transformers, as an important electrical equipment, are widely used in fields such as communication, electronics, and power. This article will provide a detailed introduction to the classification of low-frequency transformers and explore their applications in different fields.low-frequency transformerClassification of low-frequency transformersLow frequency transformers can be classified into various types based on their structure and working principle, mainly including the following types:1. Core transformer: Core transformer is the most common type of low-frequency transformer. It uses a ferrite core or iron core as the magnetic circuit and achieves voltage conversion through winding of the coil. Core transformers have the advantages of small size, light weight, high efficiency, and low temperature rise, and are widely used in various electronic devices.2. Shell type transformer: Shell type transformer is opposite to core type transformer, with its magnetic circuit lo...