Freescale Semiconductor WCT-15W1COILTX Qi medium power wireless charger User Manual RUNWCT 15W1COILTX Rev1

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Document Description	RUNWCT-15W1COILTX_User Manual_Rev1
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Freescale Semiconductor
Document Number: WCT1012SYSUG
User Guide
Rev. 2, 1/2015
WCT-15W1COILTX User Guide
Introduction
This document describes how to use 15W
medium power wireless charger transmitter
WCT-15W1COILTX designed by Freescale.
Contents
Introduction
System Features
Getting Started
Cautions
Figure-1 WCT-15W1COILTX
© Freescale Semiconductor, Inc., 2014. All rights reserved.
_______________________________________________________________________
2
System Features
The WCT-15W1COILTX reference board has following features:
• Compliant with WPC Qi specifications to support up to15W power transfer.
• Compliant with WPC low power (5W) specification.
• Integrated digital demodulation in chip.
• Supports two-way communication, transmitter to receiver by FSK and receiver to transmitter
by ASK.
• Support multiple types RX modulation signals (AC capacitor, AC resistor and DC resistor).
• Support low power FOD.
• Super low standby power by Freescale touch technology.
• Support various power control techniques: frequency control, duty cycle control, phase shift
control and topology switch.
• LED for RX and TX alignment indication.
• Input voltage/current, coil current sensing for protection.
• Free position charging.
Getting Started
WCT-15W1COILTX is easy to use, and can convenience to charging the mobile equipment that support
the Qi wireless charging, below is the detail step to power up the system and use.
Step 1: power on the Transmitter, plug the 12V adaptor to the AC power line, and plug the adaptor output
port to the transmitter input port, and the LED D4 will be blanking.
Figure-2 WCT-15W1COILTX powered on
Step 2: Place the wireless charging RX or some equipment that support the Qi wireless charger (such as
cell phone, battery and so on) on the WCT-15W1COILTX’s coil surface, then the transmitter will charge
WCT-15W1COILTX
Reference Design System User Guide, Rev. 2
Freescale Semiconductor
the equipment, under the normal charging states, LED D4 will be turned on all the time, and LED D3 will
be blanking, and the RX will powered on the equipment normally.
Figure-3 WCT-15W1COILTX charging the equipment
Others Indicates: when the Transmitter get the end power communication information, it will stop the
charging and wait until the RX is removed, under this state LED D3 will be turned off, and LED D4 will
be turned on all the time. When some fault found, the transmitter will turn off LED D4, and turn on LED
D3 until the fault is removed, fault include the FOD fault, OVP, OTP and so on.
Cautions
•
This device has been tested and found to comply with the limits pursuant to Part 18 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation.
•
If this equipment does cause harmful interference to other electronic equipments, which can be
determined by turning the equipment OFF and ON, the user is encouraged to try to correct the
interference by one or more of the following measures:
Reorient or relocate the equipment
Increase the separation
•
•
WCT- 15W1COILTX
Freescale Semiconductor
User Guide
•
•
In order to use the equipment safely，please don’t open the case when powered on，and don’t touch
the PCB and components with hand.
Don’t place some metal things between the TX surface and the RX surface, otherwise the metal
things will be heated, it the temperature is too high, the Transmitter will shut down for protection.
This device complies with Part15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) This device may not cause harmful interference, and (2) This device must accept any
interference received, including interference that may cause undesired operation.
WCT-15W1COILTX
Reference Design System User Guide, Rev. 2
Freescale Semiconductor
How to Reach Us:
Home Page:
www.freescale.com
Web Support:
www.freescale.com/support
Information in this document is provided solely to enable system and software
implementers to use Freescale products. There are no express or implied copyright
licenses granted hereunder to design or fabricate any integrated circuits based on the
information in this document.
Freescale reserves the right to make changes without further notice to any products herein.
Freescale makes no warranty, representation, or guarantee regarding the suitability of its
products for any particular purpose, nor does Freescale assume any liability arising out of
the application or use of any product or circuit, and specifically disclaims any and all liability,
including without limitation consequential or incidental damages. “Typical” parameters that
may be provided in Freescale data sheets and/or specifications can and do vary in different
applications, and actual performance may vary over time. All operating parameters,
including “typicals,” must be validated for each customer application by customer’s
technical experts. Freescale does not convey any license under its patent rights nor the
rights of others. Freescale sells products pursuant to standard terms and conditions of sale,
which can be found at the following address: freescale.com/SalesTermsandConditions.
Freescale and the Freescale logo are trademarks of Freescale Semiconductor, Inc., Reg.
U.S. Pat. & Tm. Off. All other product or service names are the property of their respective
owners.
©2013 Freescale Semiconductor, Inc.
Document Number: WCT1101SYSUG
Rev. 2
11/2014

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