• How Much Power Does a Charger Actually Consume

    How Much Power Does a Charger Actually Consume?

    I’m sure most people have plugged in chargers all over their homes and we all know that this actually slowly drains electricity, yet don’t think so. So how much electricity does this situation actually use? Look at the figures below and you’ll see. Here it is still recommended that you unplug the charger when it is not charging. With the development of smartphones, mobile phones are consuming more and more electricity, which has led to the current smartphones being charged almost once a day, or even several times a day. As a result, many people leave their chargers in the socket all the time for the convenience of use, not realising that the power consumption is horrendous. If one in eight of the country’s one billion mobile phone users left their chargers in their sockets, it would consume enough power to run 6,000 home air conditioners at the same time. At this point we wonder why chargers consume electricity, how much electricity they consume, and whether other appliances consume electricity? Why do chargers consume power? Most mobile phone chargers are switching power supplies, which first rectify 220V into DC, then through high frequency conversion, coupled by a pulse transformer, a one-way rectifier outputs low voltage DC. Even if there is no output current, the high frequency conversion part is still working and needs to consume some power. For example, the control circuit in the charger, mainly senses whether the phone is connected to the charger or not, and works when …

  • What Is The Difference Between Speaker Cables And Audio Cables

    What Is The Difference Between Speaker Cables And Audio Cables?

    Speaker cable, is mainly used for the connection of amplifiers to main speakers and surround speakers in home theatres. Compared to video and audio cables, it has a relatively large current signal in circulation and because of the large signal amplitude, speaker cables are often unshielded. For this kind of wire, the key is to reduce its resistance, because the output resistance of modern amplifiers is very low, the requirements of the speaker wire are increased, you can use a large cross-sectional area or multi-strand stranded speaker wire. Speaker Cables, Audio Cables Speaker cables pass directly through the power signal, because of the high current passing through, the copper core of the line will be thicker, in order to ensure that high frequencies pass through and reduce resistance attenuation, mostly silver-plated, gold-plated or oxygen-free copper wire. Generally oxygen-free copper is the positive pole and tinned copper is the negative pole. The double skin is red in colour, both sides are brass coloured. The positive side of the oxygen-free copper core is marked with a red line. Speaker cable consists of the corresponding number of copper cores, the higher the number of copper cores, the better the result and the higher the price, but if it is use for family or ordinary speaker, the choice of 200 to 300 is enough. Audio cables are used to transmit electro-acoustic signals or data, through small currents and low power signals, due to the high impedance and susceptibility to interference, so are generally shielded …

  • How Much Do You Know About Audio Cables

    How Much Do You Know About Audio Cables?

    In the audio equipment, the necessary accessories is the wire, the choice of wire is also very important. If the wire is bad there will be things like signal loss, distortion and so on. We all know that the signal transmission between the analog and digital devices in the audio equipment system must be interconnected by wire. Even if there is a good device, without a reasonable mix of audio cables and connectors, it can not play the best effect of its equipment. Therefore how to correctly select the required cable is crucial. Digital Audio Cables Commonly used digital audio cables can use the same connectors as analog audio, such as XLR , Lotus port RCA, BNC, etc.. Of course, the use of analog cables to replace the digital cable, can also be transmitted out of the signal, but will affect the quality of transmission. The output impedance of analog cables and digital devices have relatively strict requirements with the cable impedance. Analog cable regardless of length, at all points of the cable, the impedance is 600Ω, analog equipment in level matching when the input and output impedance less than 600Ω will not affect the sound quality of analog audio. If used for digital audio equipment is different, digital audio signal is a high operating frequency pulse data stream, in order to accurately transmit the signal, the cable must be matched with the transmitting and receiving equipment, the impedance of the beginning to the end of the cable must maintain …

  • How to Choose a Data Cable

    How to Choose a Data Cable?

    For the purchase of cell phone data cable thing, most people’s views are generally limited to “can plug on the line” and “the original best” these two points. Although the phone data cable is just a thin line, want to buy the right is not a simple matter. Today, I’ll share with you to buy data cables need to pay attention to which points. Now the e-commerce platform has rarely been able to see the appearance of counterfeit data line products, as long as the choice of brand merchants in large e-commerce platform for purchase is difficult to buy inferior products, of course, or not recommended to buy online unknown sellers or offline “roadside stalls” sales of “three no products “. Although the data line products purchased in the formal channels in the quality of the general no big deal, but not necessarily to buy the data line needed. This is because many of the data line products are now hidden or confuse the product specific parameters of the problem, the following I will first give you a list of the data line is easy to meet when buying several “pit”. Fast charging line can not be fast charging Although it is a fast charging cable,the charging has not become fast, is the problem that we all encounter when buying Android data cable. With the rapid development of fast-charging technology for Android phones now, the fast-charging standards are not uniform, and many fast-charging protocols that exceed 20W charging speed require special data …

  • Classification of Network Cables

    Comparison of properties of Category 5 and Category 6 cables Category 5 cable (CAT5): Transmission frequency of 100 MHz, used for voice transmission and data transmission at a maximum rate of 100 Mbps, mainly for 100BASE-T and 10BASE-T networks. This is the most commonly used Ethernet cable. This type of cable has increased winding density and a high quality insulation material. Super Category 5 (CAT5e): Transmission frequency of 100MHz, mainly used for Gigabit Ethernet (1000Mbps). With low attenuation, less crosstalk, and higher attenuation to crosstalk ratio (ACR) and signal to noise ratio (StructuralReturn Loss), and smaller time delay, the performance is greatly improved. Category 6 wire (CAT6): transmission frequency of 250MHz, most suitable for applications with transmission rates higher than 1Gbps, mainly for Gigabit Ethernet (1000Mbps). Category 6 twisted-pair cable differs from Category 5 or Super Category 5 twisted-pair cable in appearance and structure. Not only does it add an insulated crossbone, placing each of the four pairs of twisted-pair wires in the four grooves of the crossbone, but the diameter of the cable is also thicker. Super Category 6 or 6A (CAT6A): The transmission frequency is 200 to 250 MHz, and the maximum transmission speed can also reach 1000 Mbps, which is mainly used in gigabit networks. Super Category 6 cable is an improved version of Category 6 cable, which is also an unshielded twisted pair cable specified in ANSI/EIA/TIA-568B.2 and ISO Category 6/Class E standards, with significant improvements in crosstalk, attenuation and signal-to-noise ratio. Category 7 cable (CAT7): …

  • 6

    Advantages of HDMI 2.1

    Many people believe that the device interface does not have much importance, in all honesty, input and output devices in the beginning of the design, as far as possible to carry the appropriate interface configuration, to display devices, for example, the panel supports the resolution and refresh rate are generally equipped with matching interface specifications, 1080P clarity of the display, there is really no need to carry the interface configuration to meet the 4K specifications, consumers in the choice of products The consumer does not need to make too tangled choice. However, we need to be aware that when increasing the resolution of the video signal, the amount of data in the signal increases. A 3,820×2,160 4K UltraHD signal sent over HDMI has about four times the data volume of an HD 1,920×1,080 signal. If you think of the cable as a water pipe, a larger pipe than 1080p is required to transmit a 4K signal. 2020 display new standard HDMI ushered in an important upgrade Back at CES 2017, HDMI announced the new HDMI 2.1 specification with a wire speed specification of 48Gbps, allowing image data of 8K/60 frames per second or 4K/120 frames per second to pass through. In addition, it can also bring gain to 4K TVs equipped with this interface. Upgraded specifications of external devices should require thicker cables The players are concerned that this year’s flagship TVs, have been equipped with refresh rate up to 120Hz panel, maintaining the color performance at the same time, …

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    Infinix Zero X: Supports 160W Quick Charge, 10 Minutes Full

    Currently, all cell phone manufacturers are upgrading their cell phone products in many way which includes a larger and larger screen size and ratio, a fast network transmission speed such as 5G and the large area coverage of the screen high refresh rate. The upgrading of mobile phone charging capability has also under the spotlight of various manufacturers and users. It is for this reason that a lot of brands have announced their own charging technology breakthroughs recently.It is reported that the common fast charging models on the market can support up to 120W fast charging, which enables it to fully charge users’ phone within 20 minutes. It’s said that OPPO is carrying out tests of 125W charging head. Meanwhile, in terms of wired charging technology, Xiaomi has also managed to break through to 200W, shortening the phone charging time to 8 minutes; in terms of wireless charging, Xiaomi has also come to the 120W. In addition to the above familiar brands, Infinix, the pure smartphone brand of King of Africa, has officially released the Infinix 2021 concept phone recently, also known as Infinix Zero X. It is the same phone that was earlier reported to be equipped with 160W wired fast charging, and also equipped with a dual color-changing electrochromic back cover. In terms of fast charging, it is said that the phone is not only equipped with 160W wired charging, which is officially advertised as being able to charge a phone equipped with a 4000mAh battery to 100% …

  • face recognition leads

    Face Recognition Leads to Hot Discussion! Expert Explanation

    Many software in the identity security authentication, face recognition is an important link. But do you really think that face recognition is just to shoot the “face”? Recently, the digital blogger revealed in the social platform: face recognition to collect the area is not only the screen display of the head, but the entire scope of the camera coverage. And the photos are uploaded to the backstage, where human reviewers can see them. Soon after, the hashtag # Facial Recognition Must Wear Clothes # was trending. Many exclaim that if that’s the case, they’re going to another planet. So can background reviewers really see more of us than our faces on the phone’s screen? In this regard, Professor Qiu Bo, director of the Department of Electronic Information Engineering, Hebei University of Technology, affirmed that “the image taken by face recognition must be all the areas covered by the camera field of vision, rather than just the part within the frame we see on the phone. This is a problem of basic common sense”. “From a technical point of view, the current face recognition technology does not require the storage of the original image.” According to Qiu Bo, the intelligent camera can extract the features of face images in real time and encode the faces, thus generating a face feature vector for transmission, storage and comparison operations. That is to say, the terminal machine, face have already turned into a string of Numbers, they can be said of the distance between …

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    Microsoft Officially Launched Windows 11 System, Seven Major Changes Detailed

    June 24, Microsoft officially released a new generation of operating system – Windows 11. This is also Microsoft after nearly 6 years again launched a new version of Windows system (the last time or July 29, 2015 launched Windows 10). With the launch of the new Windows system, the Windows logo has also changed, from the original see-through version of the logo into a square “田” logo, the new version of the logo you will like? And then look at what Windows 11 has changed in terms of features and appearance! 1、Redesigning The Interface Simplified interface design and user operation, more modern, neat and beautiful. The most obvious change is that the taskbar has come to a centered position. The start menu and taskbar are all new, and every sound, font, and icon is carefully designed. The new Sticky Layout, Sticky Groups, and Virtual Desktop features further enhance the multitasking processor and organize windows and optimize screen space. 2、Rapid Contact The taskbar is natively integrated with Teams, allowing you to connect with your friends via typing, chat, voice, and video, whether on Windows, Android, or iOS platforms. You can also turn on and off silent mode or start a presentation directly from the taskbar. Two-way SMS contact is also supported if the other party does not have the Teams app. 3、The Most Powerful Gaming Experience Ever The PC has always been one of the best platforms for gaming. According to Microsoft, Windows 11 unlocks the full potential of hardware, cutting-edge …

  • 8

    Photosensitive Epilepsy in Game And Video

    The friends who play the game all know that the opening of some games will have some introduction and matters needing attention. Most players don’t take much more than a glance at these prompts, as they do when they unthinkingly check the “User Guidelines” box. Just like ghost doesn’t crawl out of the computer screen and eat you.It’s just a game. It’s not life-threatening. Once upon a time, there were many TV viewers who had this idea, and they never knew that patients with a photosensitive disease would have severe epileptic reactions or even life-threatening seizures under certain conditions.It wasn’t until 1997 that a television accident in Japan completely renewed people’s understanding of the disease. 3D Dragon Event On December 16, 1997, at around 6:30 p.m., the First Season of Pokemon , which began airing in the same year and has become hugely popular in Japan, was scheduled to air episode 38, “Computer Warrior 3D Dragon,” on Thursday.It was broadcast on more than 37 television stations in Japan and tuned into 4.6 million households. At the time, this figure reached the highest ratings of the broadcast time period. However, when the video showed that the Pikachu destroyed the missile, some viewers began to have blurred vision, headache, dizziness and nausea, and some viewers even experienced severe symptoms such as epilepsy, blindness, convulsions and loss of consciousness. A total of 685 viewers(most of them children),were reportedly taken to emergency services by ambulance across the country, with more than 150 children later …