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True Wireless Power is FINALLY here (building a TRULY wire-free setup)
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DIY enthusiasts and tech hobbyists interested in custom furniture builds, home automation, and emerging wireless power technologies.
TL;DR
This project explores 3D wireless power delivery by embedding a magnetic resonance transmitter into a custom-built hardwood desk. By integrating a PC and wireless receiving coils, the creator demonstrates a setup that powers peripherals and keeps a coffee mug perpetually warm without any physical cables.
Key Takeaways
- 3D wireless power delivery uses a resonant magnetic field to transfer energy over a large area, unlike traditional charging pads that require precise, direct contact between devices and the transmitter.
- The system functions by generating a magnetic field that flips polarity millions of times per second, allowing power to be efficiently and safely transmitted to devices within a defined dome.
- Non-conductive materials like wood are ideal for housing wireless power transmitters because they do not interfere with the generated magnetic fields, allowing for seamless, invisible integration into furniture.
- Compact computer mainboards, such as those designed for repairable laptops, enable the creation of minimalist, hidden PC setups that eliminate cable clutter by integrating hardware directly into a desk.
- Wireless power receivers vary in capacity based on their size, with larger rings capable of delivering up to 10 watts of power, sufficient for tasks like heating liquids or powering peripherals.
- This technology enables perpetual power for everyday items, such as keeping a coffee mug at a constant, drinkable temperature without the need for external cables or batteries.
- Small-scale wireless power receivers can eliminate the inconvenience of battery-operated computer peripherals, ensuring that devices like mice or keyboards remain powered indefinitely without requiring manual recharging.
In This Video
- 00:00Introduction to 3D Wireless Power
The video introduces 3D wireless power technology, which allows devices to be powered wirelessly within a specific area without needing direct contact.
- 01:01How Wireless Power Technology Works
The system uses a resonant magnetic field to transfer power, differing from standard charging pads by covering a larger area at higher frequencies.
- 02:27Building the Wireless Power Desk
The creator constructs a custom plywood desk with an embedded wireless power ring and an integrated computer system for a wire-free setup.
- 06:15Testing Power with Heated Mug
To test the system's capacity, the creator builds a wirelessly powered mug warmer that successfully maintains a constant, warm temperature.
- 08:41Powering Peripherals and Future Outlook
The creator explores using smaller power rings to perpetually charge computer peripherals, eliminating the need for batteries and manual charging.
Questions & Answers
How does 3D wireless power delivery work?
It uses a wire loop to generate a rapidly flipping magnetic field. When a receiver coil is placed within this field, it induces an electric current, allowing power to be transferred wirelessly to devices anywhere within the defined 'power dome'.
How is this different from standard wireless phone chargers?
Standard chargers require precise positioning and near-direct contact. The 3D wireless system covers a much larger area and flips its magnetic field polarity millions of times per second, allowing for efficient power transfer across a wider space.
Can wood interfere with the wireless power magnetic field?
No, wood does not interfere with the generated magnetic field, which makes it an ideal material for housing the wireless power delivery ring invisibly inside a desk.
What computer hardware is used for the desk build?
The creator uses a Framework mainboard, which is a thin, powerful, and compact computer system built into a single board, making it perfect for embedding directly into the desk structure.
How much power can the wireless rings provide?
The power output depends on the size of the receiving ring. Larger rings can capture up to 10 watts of power, while smaller rings, roughly the size of a thumb, can deliver about 100 milliwatts, which is sufficient for powering computer peripherals.
Key Terms
- 3D wireless power — A technology that creates a magnetic field dome, allowing devices to receive power wirelessly anywhere within a specific area.
- Framework mainboard — A compact, single-board computer system originally designed for upgradeable laptops, often used in custom builds due to its thin form factor.
- Resistive heating pad — A component that generates heat when an electric current passes through it, used here to keep a mug of coffee warm.