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Blog: In the telecom world, “The Last Mile” refers to the final segment of a networks that deliver services to customers. What’s the power delivery analogy?
Two new “will-it-charge” videos demonstrate new applications for wireless power.
Battery anxiety – fear of running out of mobile battery – is real, but how real is it and what are people willing to do about it? Would consumers be willing to pay a monthly fee to keep their phones charged away from home? Is wireless charging the antidote for battery anxiety?
The other day, I read about a company making electronic shelf labels (sometimes also called digital price tags) that is prototyping the use of RF-based charging to deliver energy to these labels. Let’s analyze this in some detail.
The holy grail of wireless charging is charging a phone. Which wireless power technology can charge a phone in your pocket?
There is a lot of interest in wireless charging as the next “cutting the power cord” revolution in consumer electronics. A new framework explains the important attributes for a wireless power solution and discusses the performance limits of both infrared and RF technologies.
Smart locks offer key-less entry to homes and offices. Smart locks also provide rapid entry for emergency personnel. How does wireless charging help?
Smart buildings are smart because they contain a lot of sensors. These sensors collect lots of data and this data is then analyzed to optimize comfort, power consumption and so forth. But how can wireless power help?
Lucas Mearian from Computerworld interviews Yuval Boger from Wi-Charge about the state of wireless charging. Watch the video.
What is the biggest issue with today’s phones?
Is it that there are not enough pixels in the camera? Something else?
Wired Internet connections often deliver faster speeds than wireless ones, yet people preferred wireless connections. Why, and how is this related to wireless charging?
Wireless charging is great, but picking the right technology can be confusing. What should you look for when evaluating wireless power solutions? We divide these into three categories: the prerequisites, the critical attributes and then everything else.
Many years ago, water wells were a primary source of water. When a family needed water, they would send someone to get some water from the well. If you did not want to run out, you had to manage the water.
Are there any parallels to phone batteries?
One of the key areas of growth in augmented reality goggles is the enterprise space. These devices aim for battery life of an 8- or 10-hour shift. But these devices are power-hungry. They have displays, communications link, on-board camera and sometimes speech recognition. Longer battery life often means installing a larger battery.
Is there a better way?
Here’s a recap of the ‘ask me anything’ session on Wi-Charge technology
How were phones powered in the past and how will they be powered in the future? Follow this diagram to see.
Smart door locks allow intelligent locking and unlocking of doors. Smart locks struggle to balance functionality and power consumption. More functionality means shorter battery life. Why is this the case and what can be done about it?
Ever notice that batteries take up a lot of space in IoT sensors? When you open up motion detection or other home security sensors, you see that batteries take up as much of 50% of the size of the sensor.
Is there a better way?
When considering far-field wireless power technologies, the question of “line of sight” sometimes comes up. Sometimes, a straight line free of obstacles exists between the transmitter and the receiver. This is referred to as “line of sight”.
Is line of sight a requirement?
Linus Tech Tips recently invited Wi-Charge to film a live demonstration of how our wireless power technology works. See what happens next…
Qi charging pads can power phones. But what can power the charging pad? Is connecting to a power outlet always the best solution?
What if an iPhone X had an embedded far-field wireless charging receiver. Could it remain charged using only wireless charging? Only far-field charging: no charging cable, no Qi pad. Let’s analyze this.
When people see our demos, one of the first questions they ask is: will it charge _____ ?
The answer depends on the average and peak power consumption of the product in question, but we typically see three categories.
Can an iPhone be charged from across the room and without wires? Let’s find out in this video.
Everything else being equal, one would prefer to be efficient and not inefficient.
But with wireless charging, the end-to-end efficiency is even more important. Here’s why:
Once upon a time there was no email at all.
A few years later, you had to use a modem to dial in and check email. Remember AOL?
Now, it’s seamless. email just gets to your inbox. You don’t have to think about fetching it.
Can wireless power be the same?
Batteries power our society. Our cellphones and smart devices, children’s toys, IoT devices – all run on batteries. The Government estimates that Americans discard more than three billion batteries every year. That’s about 180,000 tons of batteries, of which 86,000 tons are single use alkaline batteries.
What can we do to reduce this waste?
Absorption in air is another factor that might limit useful distance for wireless charging technologies. The energy levels of different technologies decrease by different amounts when travelling through air.
When a power beam ‘diverges’ (becomes wider), the distance of the transmitter from the receiver impacts the power capture ability. Let’s discuss the topics of ‘contained beams’ and the impact of diffraction on various power delivery methods.
In all the excitement about wireless power technology, the amount of power that a device needs to operate is sometimes forgotten.
How much power do typical devices need?