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NXP Brochure NFC Charging V1 101005

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NXP Brochure NFC Charging V1 101005 RE THINK T HE WAY YOU CHARGE. WIRELESS CHARGING DELIVERS SEAMLESS CONVENIENCE & EFFICIENCY WHAT IF ALL YOU HAD TO DO TO CHARGE A DEVICE WA S SET IT DOWN? 2 Our lives are filled withsmart mobile systems, small and large, designed to use an astonishing array of innovative features to help us move through the world in new ways. These various mobile devices enhance our experiences, making life richer, more engaging, more sustainable, and more productive. And yet, despite all this innovation and that’s been used in consumer devices, like seamless connectivity, there’s one aspect electric toothbrushes and other personal- of mobility that remains stubbornly the care items, for several decades. same – the way we recharge our battery- With inductive wireless charging, you just driven devices. By and large, we’re still set your device on a charger and power using the same cumbersome approach immediately begins transferring to the we’ve been using for nearly a century: battery. The concept is simplicity itself. power outlet, charging cord, plug. There are no cords to plug in, no extra That got people thinking. How might we accessories to fuss with. A tedious task bring charging up to date? How could we becomes effortless, requiring no more make it more in line with the rest of our thought than setting down a coffee cup intuitive mobile experiences? What if we to signal your server for a refill. could make recharging a battery a natural, Smartphones that use wireless charging hassle-free movement? are becoming relatively commonplace, There had to be a better way. And, as with but that’s just the beginning. Now, with so many things these days, the answer the latest formats of wireless charging, was wireless. There are actually a number developers are able to create a whole new of wireless techniques for transmitting category of tiny products that don’t use power – some work in far field, some in plugs or ports, so they’re smaller, sleeker, near field, and some need line of sight and safer to use. It’s taking convenience or can only transmit very small amounts and efficiency to new heights, and creating of power. One technique in particular, better electronic experiences for everyone. however, is a good choice for powering a battery without using a wire. It’s called inductive charging, and it’s something 3 THE MANY PLEASURES OF PRESENT-DAY CHARG NG 4 We’re guessing that, if you’re like most people, you’ve had one or more of these experiences with battery-powered devices ? ? CLEAN WITH CARE ENJOY THE CABLE SALAD HUNT FOR BATTERIES Your new smart watch is great. Because so many devices use You just opened your latest purchase, It tracks your heart beat while different plug and cable formats, or maybe you just gave a birthday you work up a sweat and gauges you’ve acquired a messy collection present to your favorite niece. The your performance on that muddy of tangled up cords. Smartphone, manufacturer was kind enough to mountain bike ride. Now it could laptop, digital camera, Bluetooth provide you with a charging cord, but use a cleaning, but there are no clear speakers, exercise tracker, wireless neglected to include the batteries. instructions. It says the device is headphones – each one comes Now you have to hunt some down water resistant, but does that really with its own charger. They all use or go to the store before you can mean you can dunk it in soapy water? surprisingly similar color schemes, start enjoying that new device. If it’s have similar looking plugs, and just sit after hours, you’ll have to cannibalize there, waiting for you to remember another device and use its batteries what works with what. to power this new one. 3% FUN WITH PLUGS SURPRISE RASHES GOOD LOOKS AND CORDS AND ALLERGIES AREN’T EVERYTHING You left the house in a rush. You The special charger that came Everyone appreciates a sleek design, remembered your smartphone, with your earbuds, fitness band, or but today’s charging technology can since it houses your keys and wallet smart watch delivers power through be difficult to streamline. Thick and other stuff, but you forgot your electrical connectors, called pogo batteries, big connectors, unsightly charging cord. Now you need more pins, made of gold-plated nickel. plugs – it’s hard to make a thin stylus power, and you’re out of luck. If only What you find is that, with repeated pen, a tiny earbud, or a light set of you’d thought to charge before you use, the gold can scratch off and expose AR glasses when you’re stuck using left! Or maybe you did bring a cord, the nickel. The device’s pogo pin then bulky items like batteries, plugs, and but it’s the wrong one. You ask to comes in contact with your skin. That’s cords to charge the device. borrow a charger, but which type when you discover that you’re in the 10 do you need? Some flavor of USB? to 20 percent of the human population Special charging pins? Proprietary? that’s allergic to nickel. You’ll need to find someone with 5 NFC AND Qi LET YOU RETHINK CHARGING 6 Two readily available formats of inductive charging – Near Field Communication (NFC) and Qi – can deliver power to a full spectrum of battery-driven devices, from tiny portable and IoT devices to kitchen appliances. Just set your device on an NFC or Qi-enabled charger and you’re ready to run. Whether you’re using several short sessions over the course of a day or one long session, for an extended period or overnight, you get a top-up each time you place the device on the charger. Fueling your device becomes an intuitive, seamless part of your everyday experience. 7 NFC AND Qi ARE PERFECT PARTNERS Just as there are several radio technologies harvesting for more than 25 years. NFC that operate in the wireless spectrum for works at the low end of the power spectrum communication – such as cellular, Wi-Fi, by charging devices that operate at or below Bluetooth, and, of course, NFC – there is 1W, and with the aspiration to go beyond more than one technology in the wireless 1W in the future. spectrum for battery charging. NFC and Qi Qi, on the other hand, works at the higher are complementary charging technologies end of the power spectrum, charging that work in tandem to address a new smartphones and other devices, including generation of mobile devices. laptops and kitchen appliances, which NFC is an outgrowth of smartcard operate at or above 5W. technology, which has used wireless energy LOW POWER < 1W POWER LEVEL 5 < 2000W Small Consumer & IoT Devices Medium-High Power Devices 8 INDUCTIVE CHARGING USES RADIO WAVES TO SEND POWER RECEIVER ANTENNA Power Supply Receiver Chip Battery Electric power is converted into electro- magnetic field Transmitter Chip Electro-magnetic field is converted back to electric power TRANSMITTER ANTENNA Wireless power transfer generally requires two antennas: a transmitter antenna (in the charging device) and a receiver antenna (in the receiver device). A shared (or coupled) electromagnetic field is generated when the transmitter and receiver antennas are positioned near each other. The shared field then wirelessly transfers power from one device to the other, sending energy to the battery. The process is safe, energy-efficient, and cost-effective to produce and operate. 9 NFC Slow SET IT Charge AND FORGET IT. The arrival of NFC adds new dimensions to wireless charging. Not only does it power your device more conveniently than ever, NFC also makes charging more flexible, give designers new ways to make their products more streamlined, and helps manufacturers simplify production and lower costs. 10 NFC WIRLESS CHARGING IS DESIGNED FOR FLEXIBILITY The ‘Future’ NFC infrastructure will enable flexibility in charging, so you can have it your own way: Fast Charging Charging Current Charging IN-BOX MULTI-DEVICE SECONDARY NFC Slow Charge Time NFC SLOW CHARGING FAST CHARGING Let’s you tab into widely available infrastructure and Delivers a quick charge using the in-box charger have a slower charge using the future NFC compatibility supplied with your device, in case time is critical. of a notebook computer or a smartphone, or other 11 NFC EXPANDS THE CONCEPT 12 NFC-driven wireless charging is designed for flexibility, with two ways to charge your device. You can use fast charging, which delivers a quick charge using the in-box charger supplied with your device, or you can use NFC slow charging, which delivers a slower charge - from another NFC device (e.g. smartphone) that is enabled for both communication and charging – to supply the charge. NFC slow charging delivers unprecedented Let’s say you find yourself out and about, convenience. A small amount of energy, and your earbuds are running low on sent via NFC by another device, slowly energy. NFC slow charging lets you get a recharges the device’s battery. It’s a top-up by simply setting your earbuds on concept borrowed from automotive, where your smartphone while you do something car owners use trickle chargers to maintain else, like have lunch at a café or visit with their car’s battery while it’s in storage or a friend. You can easily get small charges slowly bring a dead car battery back to life. throughout the day, without having to Now, with NFC slow charging, the idea of worry about remembering your dedicated “low and slow” charging makes it easier to charging device or finding a wall outlet.
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