博文

Commonly used USB data cable and OTG data cable difference

In daily life, we use a lot of electronic products, such as mobile phones, computers, tablets, game consoles, digital cameras, etc. These products need to be charged. The micro USB data cable is the charging cable that we use most daily. USB data cable can not only charge, but also transfer data, connect mobile phone and computer with USB, access mobile phone files and pictures through computer, or download files and pictures from the computer to the mobile phone while charging the mobile phone. Is it very Convenient. Speaking of transmitting data, of course, not only a USB data cable, but also the OTG data cable announced by the USB Implementers Forum in 2001 can be connected between different electronic products or mobile devices for data exchange, which is more advantageous than data lines. . Because the mobile devices we use are connected to the PC through the USB data cable, the data can be exchanged under the control of the PC. Once the PC is disconnected, the mobile device ca...

How to identify the iPhone charger

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This overview will help you identify your iPhone original USB charger . When you need to charge your iPhone or iPad, we recommend that you use the USB power adapter and USB cable that come standard with the standard. These adapters and cables are also available separately from Apple and Apple Authorized Resellers. For details on charging your iPhone or iPad, please refer to the “Safety, Operation and Support” section in the iPhone User Guide or iPad User Guide.

Mobile phone charger manufacturers energy saving mainly depends on efficiency

Energy conservation and consumption reduction is not only a technical aspect of current electronic technology, but also plays a key role in promoting government economic growth. Therefore, from CEC, ENERGY STAR to China's "1 watt plan", objective demand and government orientation are two-pronged, affecting the increasingly energy-saving of electronic technology. Power chip manufacturers are also launching a series of energy-saving products. For the various mobile phone charger manufacturers looking to design the latest energy efficiency standards, Power Integrations (PI)'s latest TOPSwitch-HX series is a good choice.       Multi-mode control force, change efficient hotspots as highlights       TOPSwitch-HX integrates 700V switching power MOSFETs, controllers and monitoring functions on a single IC and uses PI's patented EcoSmart energy-saving technology. Having excellent standby power consumption and consistently efficient operation under all load cond...

History of power adapters

Power adapter , can not be separated from our lives, such as mobile phone charger, mobile power, LED lighting, etc., we discuss the history, background, research scope, current status, future development direction and current controversy focus of the power adapter, the purpose of the research Meaning, importance. At the end of the 19th century, Thomas Edison successfully used a direct current transmission to light up the light bulb, but because of the huge energy loss, the efficiency of direct current transmission is very low. In 1957, JenSen invented the self-excited push-pull double transformer. In 1964, American scientists proposed the elimination of the series power adapter of the power frequency transformer, which made the power supply a fundamental way to reduce the volume and weight. . Later, Nikolates invented the AC transmission, which replaced the DC transmission. In 1969, due to the improvement of the withstand voltage of high-power silicon transistors and the shortening o...

What are the main factors that cause damage to lead-acid batteries?

China is the largest lead-acid batteries supplier . Lead-acid batteries have a history of more than 200 years and are a widely used power source. It has the advantages of easy material availability, low price, large discharge capacity and high reliability. At present, the market share is very high, and it cannot be completely replaced in the future for a long time.       The design life of lead-acid batteries is about 5 years, but in actual use, the capacity is gradually reduced in 6~12 months, and the actual service life is only about one year. After analyzing a large number of failed batteries, the failure conditions were as follows: vulcanization, water loss, unbalanced grouping, softening, short circuit, and open circuit. Among them, "vulcanization" (lead sulphate crystal) accounts for more than 90% of the failed battery, which causes the battery capacity to drop and becomes the main reason for the end of battery life.       The charging and disch...

How to identify the true and false of the Apple data cable?

As we all know, Apple accessories have always been known for their expensive and durable, so many people like to buy Apple accessories. But if you buy fake apple accessories, it is very uncomfortable. Today, Apple lightning cable manufacturers will tell you how to identify the true and false of the Apple data cable.   In fact, there have always been such doubts, the price of Apple accessories is suspicion of high, but second-hand bargains are really difficult to reassure people. Take the data line, many people think that as long as the data cable can be connected, but here you have to tell everyone. The inferior data lines can cause various problems, such as power failure, identification failure, and so on. So here's a detailed physical examination of the Apple data line, and attached a comparison with the original data line, so that everyone has an understanding of this so-called original second-hand line. Apple data line manufacturers teach you how to identify the true and...

How to find a Source of goods if I open a mobile phone accessories store

  Is it possible to have a good profit in the mobile phone accessories store? In addition to the choice of location, the quality of the service, and the good source of goods, how to find a Source of goods if I open a mobile phone accessories store? 1. Research the market. There are many brands of mobile phones. The mobile phones of a certain brand have different selling and receiving degrees in different urban areas. Do not blindly collect the source of goods, and decide the source of procurement according to the local market demand. 2. Learning experience. Go to the local mature, good mobile phone accessories store. Ask them about their hot mobile phone accessories and the channels for purchasing goods. 3. Network search wholesale market. According to the actual situation of your location, search and view on the Internet, the nearest to yourself, whether there is a large  cell phone accessories wholesale  supplier  market. In the mobile ...