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Power adapter circuit principle

High frequency power adapter According to the internal structure analysis of the power adapter, the power adapter is a working circuit principle that utilizes the power adapter. (1) Main circuit 1) The role of the input filter is to filter the clutter present in the grid, and also to prevent the clutter generated by the power adapter from feeding back to the AC grid. 2) The rectification filter directly rectifies the AC voltage of the AC grid to a smoother DC voltage for the next level of conversion. 3) The inverter converts the rectified DC power into high frequency AC power, which is the core part of the high frequency power adapter. The frequency is higher. The ratio of height, volume, weight to output power is smaller. 4) The output rectifier filter provides a stable and reliable DC power supply according to the load requirements. (2) Control circuit On the one hand, sampling from the output, comparing with the set standard, then controlling the inverter, changin...
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11 ways to increase phone headset life

Professional  phone headset wholesale suppliers  tell you how to increase phone headset life 1. Do not wear headphones when you are sleeping. When you are sleeping, people will often move. With headphones will be wrapped around the neck and twisted together with the two headphones, the headphones will be crushed. 2. Wipe the sweat on the headphone cable after using the headphones. Something secreted by these humans, containing fat or something, is at the bend of the ear. After a long time, the wire rod will age, eventually leading to cracks and cracks. 3. It is best not to smoke when using headphones. Accidentally, the earphone shell and headphone cord will be burned. In addition, soot will enter the earphone shell and stick to the shock film, and the sound quality will become worse after a long time. 4. Be sure to turn down the volume before use. If the volume of your output device is too loud, not only will your ears be shaken, but lighter membranes will wrinkle. S...
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Determinants of mobile phone charging speed

We all know that the charging speed of mobile phones is inextricably linked to the  phone charger . The charger consists of a charging head and a data line. Tell everyone the answer: it has a relationship with the charging head and also with the data line. What is the specific relationship? How to choose when one of them is broken? When charging a mobile phone, the charging head determines the magnitude of the voltage and current. The voltage and current output parameters are marked on the regular charging head. For a simple example, your phone supports 5V/2.4A, which is 12W charging. If the charging head is broken, you can change the charging speed of the 5V/1A, which is the 5W charging head, and the charging speed will naturally be much slower.         Why does the data line also affect the charging speed?         The data line is responsible for connecting the mobile phone to the charging h...
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What features do you need for the usb data cable?

The usb data line is an important device for transmitting digital signals and currents. For the usb data line, this function USB data cable wholesaler will take you to know. 1, stable ability to transmit data signals At present, under the influence of various interference factors existing in the surrounding environment, the external interference signals may enter the inner conductor of the data line to affect the corresponding data transmission effect, so the current high-quality assured usb data line customization In addition, it is more necessary to meet the stability of its data transmission function. From the current usb data line customization, what brand analysis can be found, high-quality usb data line customization mechanism can achieve a variety of shield layer integrated design based on this good design effect, through this level of design to achieve comprehensive control to avoid external signals Interference factors to ensure the efficiency of data transmission and th...
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How bad is the inferior car charger?

Car Charger This small accessory is mainly used to power the driving recorder or to temporarily charge the mobile phone. As a worthless accessory on auto parts, many owners will fall into a misunderstanding and directly pick the cheapest one. As everyone knows, such car chargers are often inferior car chargers. However, it is such a small inferior car charger that not only delays the accident, but also can damage the mobile phone, and even has the danger of spontaneous combustion, for the safety of themselves and their families. Try not to choose a low-priced product. After all, the price of the car charger is not expensive as a whole. In order to save a little money and mistake the big thing, it is really worthless. What can't be charged? What do you buy? Although the car charger is not expensive, it is an indispensable accessory on the car, even when the phone is dead, it is a tool for "lifesaving". However, if you buy a car at a critical moment and do not charge t...
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What are the consequences of using a poor quality power supply?

What are the consequences of using a poor quality power supply?  Mobile phone accessories wholesale  manufacturers tell you the answer A power source is a device that provides electrical energy and plays a key role in the product equipment that needs to be powered. At present, there are few well-known brands of power supplies, and most of the cheap and inferior power supplies are flooding the market. What are the consequences of poor quality power? Because the power is insufficient, the power supply is always overloaded, which shortens the power supply life; 2, does not play a protective role on the product, easy to burn the product equipment; 3. Because it is necessary to ensure low prices, capacitor resistors and the like can be cheaper and cheaper, and the repair rate is high; 4. Respond to the harsh power environment, the power supply has poor resistance to wide voltage, and frequent bad power supply.
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The impact of the advantages and disadvantages of the USB charger on the battery

The impact of the advantages and disadvantages of the USB phone charger on the battery is that when using the device, it is often seen that the USB charger should be used to charge the battery. This is of course not a thing of nothing. It should be known that different models of USB The charging effect of the charger is different. For example, the chargers used in mobile phones are now widely used, and there are many models of such chargers. So why is there no problem with using various incompatible chargers in real life? In fact, it is very simple. This is because although the power supply of various chargers is different, the difference is basically small, and there will be no 1A. Another case like 10A. So to a certain extent, it is possible to achieve almost the same effect. But at the same time, you should know that you should carefully observe the difference in power parameters by using different types of chargers that are not compatible. First of all, in terms of voltage, th...
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