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Pulse DC power supply and DC power supply are two very important concepts in the field of electronics, and there are certain differences between them. In the process of use, their characteristics are also different. This article explores the difference between pulse power supply and DC power supply.1. Output method of currentFirstly, from the perspective of current output mode, pulse power supplies output current in a sudden manner, providing a certain amount of current in a short period of time, which is an intermittent current output mode. DC power supplies, on the other hand, output current in a stable and continuous manner, that is, output a certain current value, usually DC voltage.2. Stability of output voltageSecondly, from the perspective of output voltage stability, the output voltage of pulse power supplies is not very stable and is prone to fluctuations due to external interference. Therefore, in some situations where high stability is required for output voltage, the use o...
2024
Wireless chargers, as a convenient charging method in modern technology, are increasingly favored by people. However, there are various types of wireless chargers in the market, with different brands and models. How to choose a suitable wireless charger for oneself? This article will provide a detailed introduction to the classification and selection techniques of wireless chargers, hoping to provide assistance for everyone's purchase!Classification of wireless chargers1. According to the charging method(1) Electromagnetic induction typeElectromagnetic induction wireless charger is a common type of wireless charger that utilizes the principle of electromagnetic induction to transmit electrical energy through magnetic field induction. It is suitable for charging needs in fixed places such as desktops and offices. Its advantages are fast charging speed, high charging efficiency, mature technology, and low cost.(2) Magnetic resonance typeMagnetic resonance wireless charger is a device th...
What is a DC single and double pulse power supply? DC single and double pulse power supply refers to power equipment that can generate both DC voltage and single or double pulse voltage. This type of power supply equipment has a wide range of applications in industrial production, scientific research experiments, medical equipment, and other fields. Firstly, a DC power supply refers to a power supply that outputs a DC voltage, meaning that the magnitude and direction of the voltage do not change over time. DC power supply is usually used in situations that require stable voltage, such as the power supply of electronic equipment, electrolysis, electroplating and other process processes.Single pulse power supply and double pulse power supply refer to the voltage output by the power supply being a pulse voltage, which means that the voltage will undergo a sudden change within a certain period of time and then return to the original voltage level. The output voltage of a single pulse...
When charging a mobile phone, should the charger be connected to the phone first or plugged in power source first? The correct answer is to first connect the charger plug to the power source, and then connect the data cable to the phone.What is the impact of the order in which the charger is connected to the power source and the phone on the battery?Here we need to introduce a knowledge point: the voltage of electricity used by Chinese residents is 220V, but the voltage of mobile phone chargers is often within 5V. When charging mobile phones, the charger will convert the high-voltage current through a transformer into low-voltage DC and then transmit it to the phone.At this point, if the charger is connected to the phone and then plugged into the power supply, it can be considered as directly connecting the phone to the power supply, which may output surge voltage; On the other hand, by inserting the plug first, it is already in a connected state and the output has stabilized...
Can a laptop always be plugged in? Some people use laptops in the office or at home all year round, with the computer constantly plugged in and the battery level maintained at 100%. One thing to worry about when doing this is that keeping the lithium battery fully charged for a long time may cause battery passivation and affect battery capacity.So for friends who always plug their laptops in, our suggestion is to occasionally unplug the power and use the battery. After all, you cannot guarantee that there will always be a power source available. Maintaining the battery will prolong its lifespan. Remember to plug it back in promptly, otherwise it may suddenly run out of power and shut down, and any unsaved items may be lost.Can I turn off my computer when it runs out of battery?Most laptops nowadays use lithium batteries, and some people worry that deep or even excessive discharge of the battery may irreversibly damage it. Although there is some truth to this concern, there is no ne...