FCC ID: 2A78H-WL0125 Wireless charging module

USER MANUAL ProductWireless Charging Model NoWL0125 This specification defines the electrical, reliability, EMC and REL requirements of the wireless charging transmitter base. The wireless charging system is based on electromagnetic induction technology. Working principle:

Wireless charging transmitter is a wireless charging solution based on electromagnetic induction technology provided by CPS. It is compatible with QI-BPP/Samsung Fast charging standard, with charging area up to 10mm*10mm and output power of 15W supporting It is based on the QI (WPC 1.2.4) standard using near-field electromagnetic coupling and the power carrier amplitude modulation method to implement power transmission between the transmitting and receiving units. The receiving unit receives the power electromagnetic energy transmitted by the transmitting unit and converts it into a DC current output to the power consumption part, and the receiving unit determines whether the received power requirement is met by detecting and calculating the received voltage and current, and converting the requirements into signal modulation on the power carrier, the transmitting unit returns the signal of the carrier amplitude change to the communication digital signal to the main control chip of the receiving unit, and the main control chip adjusts the output power according to the received information until meet power requirements at the receiving end. After the wireless charger transmits part, in a short period of time, the main control chip completes the communication between the self-test and the power adapter, determines the power range that can be output, and then starts sending the detection signal to the load:

such as the detection signal and the PIN information. The control chip sends a PIN control signal to the full bridge power part ,converting it into the electromagnetic power carrier , and if there is no load, it is sent intermittently. When there is load, the load receives the power electromagnetic energy and responds to the information according to the requirements of the QI standard. The information is modulated on the power carrier by the receiving coil. The modulation of the receiving end causes a slight amplitude change of the voltage amplitude of the power carrier. Specifications:

Input voltage: 20~36V Wireless Charqing Output: 15W (Max.) Static power: 0.25W (Without Rx) Charging area:6mm*6mm Charging height: 3-9mm (Transmitting coil to Receiving coil) Charging efficiency: 65%@15W output, 3mm distance Use procedure:

1.Power by DC 20V~36V 2.Put the mobile phone or iPad right above the device 3.The device is charging 4.When the device is fully charged, the wireless charger remains in standby mode FCC Label Compliance Statement:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference

(2) This device must accept any interference received including interference that may cause undesired operation. Any changes or modifications not expressly approved by the grantee of this device could void the user's authority to operate the equipment. Declaration the Restriction of this Limited Module Approval:

According to FCC Part 15 Subpart C Section 15.212, the radio elements of the modular transmitter must have their own shielding. However, due to there is no shielding for this Module, this module is granted as a Limited Modular Approval. When this Module is installed into the end product, Class II Permissive Change or a New FCC ID submission is required to ensure the full compliance of FCC relevant requirements. When this Module is installed into the end product, the device shall be used with a minimum separation distance of 10 cm between the user or bystander and the device. The following information shall be included in the product manual and label:

Contain FCC ID2A78H-WL0125 . Under such configuration, the FCC radiation exposure limits set forth for an opulation / uncontrolled environment can be satisfied. Only FCC approved antenna can be used for the module integrated into host. The module only use for Shandong Kangtai Industry Co., Ltd, not sale to the third parties.

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Number: W5-0045317 A TUVRheinland TCB Authority to Act as Agent Revision: 0 Effective date: Oct8, 2021 to Act as Agent Date:

2022-08-16, TUV Rheinland of North America, Inc. 1279 Quarry Lane., Suite. A Pleasanton, CA 94566 To Whom It May Concem:

| appoint _ TUV Rheinland (Shenzhen) Co., Ltd. to act as our agent in the preparation of this application for equipment certification. | certify that submitted documents properly describe the device or system for which equipment certification is sought. | also certify that each unit manufactured, imported or marketed, as defined in the FCC or Industry Canadas regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, |

acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by TUV Rheinland Group, still resides with Shandong Kanatai Industry Co.,Ltd. and

#389, Jincheng Road Zhaoyuan 265400, Shandong City, China For TCB applications, We certify that we are not subject to denial of federal benefits, that includes FCC. benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S,C, 862. Further, no party, as defined in 47 CFR 1.2002 (b), to the application is subject to denial of federal benefits, that includes FCC benefits. Thank you, Agency Agreement Date: _2023-08-16. Agreement is valid for 12 months from the above date. By:

WA nye Tongyu Xu. Gionallir) = (Print name) Za ta aif ion Manager +86 0535-8243990 nies (Telephone)

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Confidentiality Letter Date: 15 September 2022 Subject: Confidentiality Request for FCC ID: 2A78H-WLO125 Pursuant to FCC 47 CRF 0.457(d) and 0. 459 and IC RSP.-190, Section 10, the applicant feqneRts that a part of the subject FCC/IC application be held confidential. Exhibit Block Diagrams L_] Short Term External Photos

[_] Short Term [_] Permanent Internal Photos

[_] Short Term [XX] Permanent Operation Description/Theory of Operation Type of Confidentiality Requested

[_] Short Term | [x] Permanent

[_] Short Term [>X] Permanent Part List/Tune-Up Procedure

[|] Short Term [><] Permanent Schematics

[ ] Short Term Test Setup Photos

><] Short Term [_] Permanent Users Manual Shandong Kangtai Industry Co.,Ltd. has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition"

would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality:

The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Short-Term Confidentiality:

The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of 180 days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify TUV Rheinland in the event information regarding the product or the product is made available to the public. TUV Rheinland will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04-

1705. Sincerely, By: | [ec bt M ie Tongyu Xu Y WSignature/Title) (Print name)

he _ ee ee te ee eee ree a Dear Application Examiner;

Shandong Kangtai Industry Co.,Ltd. is seeking modular approval for module. The radio meets the requirements for modular approval as detailed in FCC 15.212. Compliance to each of the requirements is described below;

1. The radio elements must have the radio frequency circuitry shielded No, the modular transmitter has no shield. 2. The module must-have buffered modulation/data inputs to ensure that the device will sanity with Part 15 requirements with any type of input signal Yes, the modular transmitter has buffered modulation/data inputs ensure compliance with Part 15 under conditions of excessive data rates or over-modulation. All inputs are buffered through logic or microprocessor inputs. 3. The module must contain power supply regulation on the module Yes, the modular transmitter has its own power supply regulation in the form of a low drop-out regulator providing 9.0V supply voltage to the board independently if the board is powered by the on-board battery or an external source. 4. The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b) Yes, Antenna permanently attached. 5. The module must demonstrate compliance in a stand-alone configuration Yes, the module complies to Part 15 in a stand-alone configuration 6. The module must be labelled with its permanently affixed FCC ID label Yes, the modular transmitter is labelled with its own FCC ID number. Because the modular transmitter may be installed inside another device, rendering its own label invisible, the integration guide of the modular transmitter informs that the host device must visibly display the necessary text (Contains FCC ID: 2A78H-WLO125) on the outside of the finished product. 7. The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee Yes, the module is compliant with all applicable FCC rules. Instructions for maintaining compliance are given in the integration guide. 8. The module must comply with RF exposure requirements Yes, the module is compliant with all applicable RF exposure requirements. Please see RF Exposure Report. Sincerely, By: Le xX Tongyu Xu

(Signature/Title) (Print name)