Wiktor Wise
Wireless electricity has been a concept in the making for over a century, with Nikola Tesla experimenting with wireless power transmission in the 1890s. Today, several companies are leading the way in wireless power technology, including Wi-Charge, EMROD, Powercast, and WiTricity. These companies are developing innovative solutions for wireless power transfer, revolutionizing the way we access and utilize energy. With a focus on sustainability, these pioneers are creating a future where we can charge our devices and power our homes and businesses without the need for cords or batteries, reducing waste and our ecological footprint.
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What You'll Learn
EMROD's beam shaping technology
EMROD is a company that produces wireless electricity. Their power-beaming system uses a transmitting antenna to convert electricity into electromagnetic energy, which is then shaped into a collimated beam and sent to a receiving antenna. This technology is highly efficient, safe, scalable, and reliable.
The system is also highly flexible and can be quickly deployed to supply power to disaster-stricken areas or remote locations where traditional power line technology is too expensive or challenging to lay and maintain. EMROD's technology can transmit power across long distances, replacing the need for power lines and cables, and their patent-pending relay technology allows for extended range without increasing antenna size.
Additionally, EMROD's system incorporates built-in safety mechanisms, such as a laser safety curtain that detects objects and triggers a temporary power shutdown to avoid full beam exposure. This ensures that their technology is safe for public use, with the density of the power beam and the frequency used also contributing to safety by requiring prolonged exposure for any thermal effects to be experienced.
Overall, EMROD's beam shaping technology offers a unique solution to the challenges of energy distribution, grid scalability, and remote power supply, while maintaining high efficiency, safety, and flexibility in wireless electricity transmission.
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Wi-Charge's AirCord technology
Wi-Charge is a wireless power technology company that aims to reduce the use of wires and batteries and promote the use of eco-friendly technology. The company was founded by Ori Mor, Ortal Alpert, and Victor Vaisleib, who have a history of success in Israel's hi-tech industry.
Wi-Charge's AirCord™ technology provides long-range wireless power to small receivers that can be embedded in various lifestyle, commercial, and home products. This technology uses infrared (IR) to send power to devices wirelessly. The power remains consistent regardless of the distance between the transmitter and receiver, and it is safe as it does not emit unnecessary radiation.
AirCord™ technology is currently being used in advertising signs in retail stores, intelligent door locks in residential buildings, and touchless appliances in hotels. The company has also showcased the technology in an electric toothbrush charging station, although these are not available for purchase.
Wi-Charge's wireless technology offers several advantages over traditional power sources. Firstly, it eliminates the need for cords, providing a seamless and hassle-free charging experience. Secondly, it is environmentally friendly, with each wireless transmitter estimated to eliminate approximately 5,000 batteries. Additionally, Wi-Charge's technology enables the digitization of areas in retail stores, drugstores, and restaurants, enhancing revenue-generating opportunities, such as increasing video advertising display revenue by up to 10%.
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Power transmission devices by Green Power
Wireless electricity has been an idea in the making for over a century, with early pioneers such as Nikola Tesla experimenting with transmitting power by inductive and capacitive coupling. Today, wireless power transmission is a reality, with companies such as Wi-Charge and EMROD leading the way in developing innovative technologies that allow for long-range wireless power transfer.
Wi-Charge, a company dedicated to sustainability, offers wireless power technology that eliminates the need for wires and batteries. Their AirCord™ technology provides long-range wireless power to small receivers embedded in various devices, enabling seamless charging from a distance. Wi-Charge's infrared transmitter can power devices up to 30 feet away, enhancing convenience and flexibility for users.
EMROD, on the other hand, specializes in wireless power transfer over long distances. Their system employs a transmitting antenna to convert electricity into electromagnetic energy, which is then shaped into a collimated beam and sent to a receiving antenna. This technology minimizes energy loss during transmission and is safe for public use. EMROD's power-beaming capabilities enable various industries to access renewable energy more efficiently and redefine how they utilize energy.
Green Power, a wireless feature of Zigbee, offers a unique approach to power transmission devices. Green Power technology focuses on energy harvesting, allowing devices to harness energy from everyday activities to power themselves throughout their life cycles. This eliminates the need for batteries, reducing maintenance requirements and environmental impact. Green Power devices can derive energy from sources such as kinetic movement, sunlight, or ambient light, ensuring long-lasting performance without battery replacement.
Additionally, Green Power's ultra-low power RF silicon technology significantly reduces power consumption, making it ideal for locations where battery replacement is challenging. The mesh network further enhances energy efficiency by optimizing packet length, connection management, and on-network time for devices. Green Power's interoperability with Zigbee devices and platforms ensures a seamless integration, and its secure self-healing mesh network eliminates single points of failure.
In summary, Green Power's power transmission devices offer a sustainable and efficient solution by harnessing energy from various sources and utilizing low-power technology. This innovative approach reduces maintenance, minimizes environmental impact, and provides stable wireless networks, showcasing Green Power's commitment to convenience and eco-friendliness in smart homes and utility spaces.
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Powercast's RF Energy technology
Powercast Corporation is a leading provider of RF-based wireless power technologies for low-power applications. The company's Powerharvester chip is embedded in devices to receive RF energy (radio waves) sent over the air from either a dedicated Powercast transmitter or from industry-standard RFID readers. This wireless, embedded power supply then powers or charges its devices from within, eliminating connectors, charging contacts, and the need to replace batteries.
Powercast's RF Energy Harvesting Kit enables wireless battery charging. The chipset and reference design, available for license, make it easy and more affordable for OEMs to embed Powercast's core RF energy-harvesting technology into their battery-less or rechargeable battery-based devices. The chipset consists of Powercast's three custom chips for RF-to-DC conversion and power management. The energy-harvesting reference design converts RF energy to DC down to -12dBm of input power over a frequency range from 1MHz to 6GHz, and provides an output of up to 5V to either trickle-charge batteries or power battery-less devices.
Powercast's wireless power technologies work at distances of up to 80 feet. The company has demonstrated its P2110 Powerharvester harvesting ambient power from a nearby mobile phone and powering a battery-less wireless sensor, as well as recharging devices such as a wireless mouse, keyboard, and game controller. The P2110 design coupled with a 6 dBi receiving antenna can receive power from up to 40 feet (12 meters) away from Powercast's TX91501 3-watt RF transmitter.
Powercast's technology touches millions of users across 15+ industries, including automotive, consumer electronics, IoT, entertainment, retail, RFID, and sensors. The company has been recognized with a Global Sustainability Award for its work in reducing battery use and e-waste.
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WiTricity's wireless power transfer
WiTricity Corporation is an American wireless charging technology company that was established by Massachusetts Institute of Technology (MIT) professor Marin Soljačić in 2007 and is based in Watertown, Massachusetts. WiTricity's wireless power transfer technology allows power transfer over distance via magnetic resonance. An alternating current (AC) electricity runs through an electromagnetic coil within a charging station to form an oscillating electromagnetic field. Another coil resonating at the same frequency captures the field's energy and a rectifier delivers direct current (DC) to a battery management system.
WiTricity's technology has been used in a range of applications, including electric vehicles, medical devices, and even remote undersea vehicles. The company has also played a key role in establishing standards for wireless power transfer, such as SAE International's J2954 standard. In 2019, WiTricity acquired the assets and intellectual property rights of Qualcomm Halo and its inductive charging technology, which included more than 1,000 patents and patent applications.
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