LG Electronics USA WCD101 Wireless Charger User Manual Declaration Letter BEJWCD101

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Document ID	2401945
Application ID	XSHcRqKwoAcxjdDhwbD5JA==
Document Description	Justification per KDB 680106
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	4.14kB (51690 bits)
Date Submitted	2014-09-25 00:00:00
Date Available	2015-03-24 00:00:00
Creation Date	2014-09-24 09:28:43
Producing Software	Acrobat Distiller 9.0.0 (Windows)
Document Lastmod	2014-09-24 09:28:43
Document Title	Microsoft Word - Declaration Letter_BEJWCD101_
Document Creator	PScript5.dll Version 5.2.2
Document Author:	C0E7C1F8

LG Electronics USA.
1000 Sylvan Avenue Englewood Ciliffs, New Jersey, United States
Date: Sep 18, 2014
Letter of declaration
a) Power transfer frequency is less than 1MHz
 The power transfer frequency of DUT(Device Under Test) is between 110KHz and 205KHz.
b) Output power from each primary coil is less than 5 watts
 Output power from each coils are Max. 5 watts.
c) The transfer system includes only single primary and second coils. This includes charging systems
that may have multiple primary coils and clients that are able to detect and allow coupling only
between individual pairs of coils
 The DUT are consist of one charging coil using A11 coil as below, so the DUT can detect and
allow coupling only between TX and RX Coil.(A11 coil is only single coil.)
d) Client device is inserted in or placed directly in contact with transmitter
 When the client device is placed directly in contact with transmitter, then charging is able to start.
e) The maximum coupling surface area of the transmit (charging) device is between 60Cm2 and 400
Cm2
 The Maximum coupling surface area of the charging transmit is 63Cm2.
Maximum coupling surface area(7.0 Cm X 9.0 Cm)
f) Aggregate leakage fields at 10㎠ surrounding the device from all simultaneous transmitting coils
are demonstrated to be less than 30% of the MPE limit.
 The highest leakage filed is less than 30 % of the MPE limit.
Sincerely,
Jacob Cho
Director, Standards &
Compliance

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