Huizhou (HK) Yingyuan Technology
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The access control power supply is a fully automatic intelligent uninterruptible power supply. The access control power supply and elevator control power supply are the core of the access control system and elevator control system, and their stability is crucial for the normal operation of the entire system. When selecting a power supply, consideration should be given to a power supply manufacturer that meets technical specifications, has reliable quality, and has a good reputation. Attention should also be paid to the power supply's dust-proof, anti high pulse, and anti strong magnetic field interference characteristics to ensure that it can meet the system's requirements.The access control power supply is an important component of the access control system, which mainly serves to power the access control controller and card reader.The elevator control power supply is the most important part of the elevator control system. Its main function is to provide power to the elevator access...
2024
Power lightning arrester, also known as surge protector (SPD), is a device designed specifically to suppress transient overvoltage on power lines. It protects electrical equipment from overvoltage damage caused by lightning strikes, switch operations, power grid faults, etc. by limiting the amplitude and duration of surge voltage. Power lightning arrester is an indispensable safety protection device in modern power systems, playing a crucial role in the power system.1.Industry solutionsAccording to different application scenarios, power lightning arresters can provide various industry solutions, such as:Building lightning protection: provides comprehensive power lightning protection for various civil, commercial, and industrial buildings, ensuring the safe operation of building electrical equipment.Solar photovoltaic system lightning protection: We provide professional lightning protection solutions for photovoltaic power stations, modules, and other photovoltaic systems to ensure sta...
Variable frequency power supply and intermediate frequency power supply are two common ways of power supply in power electronics technology, and there are some differences in their principles and applications. AC variable frequency power supply The working principle of intermediate frequency power supplyThe intermediate frequency power supply uses a three-phase rectifier circuit with complete control function to convert AC power into DC power, and then uses a reactor to flatten to form a constant DC power supply. Then, the DC power supply is converted into a constant frequency single-phase intermediate frequency current through a single-phase inverter bridge.The working principle of variable frequency power supplyThe variable frequency power supply converts the AC power of the main power supply and outputs a pure sine wave. The output frequency and voltage can be set within a certain range. Currently, there are 60Hz frequency conversion power supplies, 60Hz power supplies, 400Hz int...
Electric vehicles are very convenient, so many people use them as a means of transportation. When using an electric vehicle, it is necessary to charge it frequently. Everyone has different charging habits. Some people charge it after use every day, while others wait for the electric vehicle to run out of battery before charging. Everyone knows that charging after running out of battery can cause harm to the battery. So, is "charging after use" harmful to the battery? Insiders will tell you the answer. Some users charge the battery after using an electric vehicle every day and then return home, resulting in almost daily charging. Will charging the electric vehicle after use cause damage to the battery? Let's first take a look at the advantages and disadvantages of charging after use.1.The advantages of "charging after use"Charging after use can keep the battery fully charged, which can avoid the situation of insufficient battery power and loss of power. Therefore, charging after use...
Normally, it is recommended to choose the "balanced" power mode to strike a balance between battery life and performance. If you need to use the battery for a long time, you can choose the "energy-saving" power mode; If you need the highest performance and running speed, choose the "High Performance" power mode. 1. Introduction to laptop power modeThere are three common power modes for laptops: balanced mode, energy-saving mode, and high-performance mode. Users can choose and switch these power modes according to their needs.Balance mode: Balance mode is the default power mode that balances computer performance and battery life. In this mode, the computer's performance and battery life are in a balanced state, suitable for daily use. Therefore, the balanced mode is often considered the best choice for most users.Energy saving mode: When the computer is in energy saving mode, it will slow down the system's running speed, thereby extending the battery life. This mode is usually suita...