Benny Zelman

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© COPYRIGHT 2010-2016
Juicing Up the IoT
Benny Zelman

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© COPYRIGHT 2010-2016
o Incorporated: 2010 (Israel)
o Team: 14
o Engaged in development of ETERNA™: Wireless Power Technology Platform based on
RF coupling and resonance.
o Status (Q1-2016):
o Full blown integration with market leader in hearing aid devices.
o Collaboration with leading Semiconductors.
o Multiple prototyping projects (paid) with market leaders in CE, Mobile, Wearables, Enterprise,
Healthcare, Etc.
o Joined board of AirFuel Alliance (UPG Group) (merged organization of A4WP-PMA)
About Humavox®

3. This is what
the
market
offers

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• Main components:
• Charger – Transmitter.
• Device – Receiver.
• Medium - Charging volume.
System Overview

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• Friis equation for Far-field in free space.
𝑃𝑟 = 𝑃𝑡 𝐺𝑡 𝐺𝑟
𝜆
4𝜋𝑅
2
=
𝜆=
𝑐
𝑓
𝑃𝑡 𝐺𝑡 𝐺𝑟
𝑐
4𝜋𝑅𝑓
2
• Ptr – Power transmittedreceived.
• Gtr – Transmissionreception gain.
• R – distance between transmitter and receiver.
• 𝜆 - wavelength of the wave.
Friis Equation for Far-field
Tx
Pt
Rx
Pr
Gt
Gr
λ,f

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• RLC circuit:
• 𝑍 = 𝑅2 + (𝑋 𝐿 − 𝑋 𝐶)2
• 𝑋 𝐿 = 𝑗2𝜋𝑓𝐿
• 𝑋 𝐶 =
1
𝑗2𝜋𝑓𝐶
Resonance

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• The higher the frequency, the smaller the
transmission and reception elements.
• Devices can be waterproof.
• Devices that until now didn’t have any charging
solution.
Integration

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It’s Time to Cut the Cord!