Top Banner
© All rights reserved by Wurth Electronics, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com WIRELESS POWER TRANSFER Würth Elektronik eiSos GmbH October, 2015
21

Welcome to Wurth Electronics Product Training Module about the

Feb 11, 2022

Download

Documents

dariahiddleston
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Page 1: Welcome to Wurth Electronics Product Training Module about the

© All rights reserved by Wurth Electronics, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

WIRELESS POWER TRANSFER

Würth Elektronik eiSos GmbH

October, 2015

Page 2: Welcome to Wurth Electronics Product Training Module about the

2JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

Content

Applications

Technologies & Standards

Coil Specific Considerations

Würth Elektronik Products & Advantages

Page 3: Welcome to Wurth Electronics Product Training Module about the

3JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

Applications

Page 4: Welcome to Wurth Electronics Product Training Module about the

4JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

Application Areas besides Consumer Products

Industrial

Medical Technology

Furniture / Infrastructure

Automotive

Page 5: Welcome to Wurth Electronics Product Training Module about the

WIRELESS POWER

C O N S O R T I U M

Cordless Kitchen

13 J

uly

2012

5

Power for

appliances

everywhere

Page 6: Welcome to Wurth Electronics Product Training Module about the

6JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

Technologies and Standards

Page 7: Welcome to Wurth Electronics Product Training Module about the

7JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

Rx

B Field

Rx

Rx

inductive power transfer resonant power transfer

Inductive and Resonant Coupling

Tx

B Field

Tx

B Field

B Field

Evanescent wave coupling

Page 8: Welcome to Wurth Electronics Product Training Module about the

WIRELESS POWER

C O N S O R T I U M

Transmitter

Cp

Lp

+

-

Receiver

Inductive Wireless Power Transfer

Cd

Ls

Cs

C Rm

ModulationModulation

Cm

IpVp

Load

Power

Page 9: Welcome to Wurth Electronics Product Training Module about the

9JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

The Power of Qi

How to get a Qi-certified product?

Product must fulfill the requirements of Qi low power

specification downloadable from

http://www.wirelesspowerconsortium.com

Part1: Interface definition (public)

Part2: Performance Requirements (for members only)

Part3: Compliance testing (for members only)

Product must be certified – Qi authorized

test labs are:

• TÜV Rheinland, Korea

• TÜV Rheinland, Taiwan

• CETECOM, Germany

• DLS electronic systems, USA

Product certification is available only to members of

the WPC.

Page 10: Welcome to Wurth Electronics Product Training Module about the

10JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

Page 11: Welcome to Wurth Electronics Product Training Module about the

11JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

Coil specific considerations

Page 12: Welcome to Wurth Electronics Product Training Module about the

12JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

The penetration depth δ can be described with

the following formula:

ρ specific resistance

ω angular frequency

µ sheared effective permeability (e.g.: 100)

Skin Effect

Source: en.wikipedia.org

Page 13: Welcome to Wurth Electronics Product Training Module about the

13JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

Proximity Effect

Source: electrical4us.com

The proximity effect causes current constriction or current displacement in

closely spaced conductors.

Source: itwissen.info

Page 14: Welcome to Wurth Electronics Product Training Module about the

14JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

Coupling factor / alignment tolerances

Good coupling and maximum energy transmission depends on

size of the effective area of the receiver coil in the magnetic field

the distance in the z direction

A coupling factor of 1 is ideal

Page 15: Welcome to Wurth Electronics Product Training Module about the

15JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

Improvement using ferromagnetic shielding

Page 16: Welcome to Wurth Electronics Product Training Module about the

16JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

WE Products & Advantages

Page 17: Welcome to Wurth Electronics Product Training Module about the

17JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

Würth Elektronik Wireless Power Coils WE-WPCC

Fully compliant to WPC Qi standard

Efficiency up to 93%

Supreme shielding characteristics for low leakage

inductance

Outstanding performance due to usage of litz wire:

lowest RDC

highest Q values

Page 18: Welcome to Wurth Electronics Product Training Module about the

18JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

Structure of thin receiver coils

Page 19: Welcome to Wurth Electronics Product Training Module about the

19JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

15 Transmitter Coils

15 Receiver Coils

WE Wireless Power Coils – 9/2015

http://katalog.we-online.de/en/pbs/browse/Power_Magnetics/Wireless_Power_Transmission

Page 20: Welcome to Wurth Electronics Product Training Module about the

20JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

Page 21: Welcome to Wurth Electronics Product Training Module about the

21JHant / CSo | Confidential | Wireless Power 2015

© All rights reserved by Würth Elektronik, also in the event of industrial property rights. All rights of disposal such as copying and redistribution rights with us. www.we-online.com

Thank you