etatronix EXM10RXLINK Wireless Power Receiver User Manual exm10 series datasheet Draft 01

etatronix GmbH Wireless Power Receiver exm10 series datasheet Draft 01

Contents

Users Manual

exm10 series10W Wireless Power Receiver with Battery Charger etatronixexm10 series10W Wireless Power Receiver with Battery ChargerIntroductionThe exm module series provides easy touse plug and play solutions for high per-formance wireless power transmissionbetween a power transmitter (Tx) and apower receiver (Rx). In combination witha proprietary data transmission channel,the series provides a fast regulation loopand the ability to transfer customer datain parallel. Compliance to global safetyand EMC standards qualifies the seriesfor worldwide markets.The exm10 series contains easy to usepower receiver modules that can bewirelessly powered with any etatronixexm10 power receiver. They provide upto10 Wat the DC output. A LiIon chargefunction as well as a battery manage-ment system including a state of chargealgorithm is available.In combination with an exm10 powertransmitter, the system complies to CEand FCC regulations. It has a modularapproval which minimizes the certifica-tion effort of the application containingthe module.Features•Up to 85% Efficiency•10 W Continuous Output Power•Fast Dynamic Response•Foreign Object Detection•Up to 2kbps Data Transmission•Low Standby Consumption•Battery Management Functionality•Low Emissions, Compliance to–EN 55011/CISPR 11 class B–FCC, part 15 & 18–IEC / EN 61000-4-3,4,5,6,8–Works with any exm10 WirelessPower Transmitterexm10 series-datasheet-Draft-01.pdf© etatronix GmbH, November 2017 1/ 10
etatronix exm10 series10W Wireless Power Receiver with Battery ChargerTable of Contents1 Electrical Specification 31.1 OperatingConditions .............................. 31.2 Interface ...................................... 31.3 Compliance .................................... 32 Mechanical Specification 42.1 Dimensions .................................... 42.2 Mounting...................................... 53Interfaces 63.1 PowerConnector................................. 63.2 BatteryConnector ................................ 63.3 SignalConnector ................................. 74 Functional Description 85 Compliance 95.1 Compliance .................................... 9References 10Revision HistoryRevision Date ChangesDraft-01 11/2017 First Draft Release2/ 10 exm10 series-datasheet-Draft-01.pdf© etatronix GmbH, November 2017
exm10 series10W Wireless Power Receiver with Battery Charger etatronix1 Electrical Specification1.1 Operating ConditionsParameter Min Typ Max UnitOutput voltage1- - 20 VOutput current1,2 - - 2.7 AAmbient temperature -25 - 70 ◦CStandby current 3- tbd. - mAData transmission frequency - 2 - MHz1In case of a connected battery, output current and voltage depend on actual charge state. The moduleworks in CC/CV mode.2Output current limitation can be tailored to specific load and battery requirements.3Receiver module not connected with power transmitter, BMS active.1.2 InterfaceParameter Min Typ Max UnitLow level digital interface 1-0.1 - 0.6 VHigh level digital interface 12.7 - 3.4 VMaximum voltage at PG 1,2 - - 4.2 VMaximum current PG 1- - 10 mAOutput Capacity - - 440 µFBattery Fuse Rating - T7 - ABattery Fuse Melting Integral - 8.7 - A2Sec1Internal limiting series resistor: 330 Ω.2Voltage at PG-pin shall not exceed the output voltage.1.3 ComplianceRegulation DescriptionEN 55011 class B EMIregulation for home equipmentexm10 series-datasheet-Draft-01.pdf© etatronix GmbH, November 2017 3/ 10
etatronix exm10 series10W Wireless Power Receiver with Battery Charger2 Mechanical Specification2.1 DimensionsFigure 1: DimensionsLength Width Height Weight60.0mm +/-0.2 46.0mm +/-0.2 10.6mm +/-0.21tbd1Notice that the height varies and will be higher at the solder points.4/ 10 exm10 series-datasheet-Draft-01.pdf© etatronix GmbH, November 2017
exm10 series10W Wireless Power Receiver with Battery Charger etatronix2.2 MountingFigure 2shows two possible examples for the mounting of the exm module. Using theprovided holes, the module can be mounted on a separate carrier (a) or on the surfacewhich faces the power coil (b). In order to fit onto the module, the screw-head shouldhave a maximum diameter of 5.5mm. The height of the standoffs should be at least6mm.(a) Carrier Mounting (b) Surface MountingFigure 2: Mounting Examplesexm10 series-datasheet-Draft-01.pdf© etatronix GmbH, November 2017 5/ 10
etatronix exm10 series10W Wireless Power Receiver with Battery Charger3InterfacesThe interface of the exm module consists of a power output to connect the load, asignal output for communication with the module or via the wireless link and a separatebattery connector.Figure 3: Interfaces3.1 Power ConnectorType: TE Connectivity 1-292173-3Pin Name Function1 Vout- Output GND2 PG Power Good13 Vout+ Output Voltage1Open collector to GND3.2 Battery ConnectorType: TE Connectivity 1-292173-36/ 10 exm10 series-datasheet-Draft-01.pdf© etatronix GmbH, November 2017
exm10 series10W Wireless Power Receiver with Battery Charger etatronixPin Name Function1 GND Battery -2 NTC Thermistor of the battery to GND13 Vbat+ Battery +21Open collector to GND2Protected by an internal Fuse3.3 Signal ConnectorConnection to the signal connector is not necessary for power transmission but canbe used for status updated and customer-specific data transmission. More details arespecified in [1].Type: JST SM04B-SRSS-TBPin Name Function1 VCCint Internal Supply Voltage2 COM1 I2C SDA, UART Tx13 COM2 I2C SCL, UART Rx14 GNDint Internal GND1Depending on configurationexm10 series-datasheet-Draft-01.pdf© etatronix GmbH, November 2017 7/ 10
etatronix exm10 series10W Wireless Power Receiver with Battery Charger4 Functional DescriptionFigure 4: Block DiagramTo maximize the power transmission effi-ciency, the power transmission betweentransmitter and receiver modules of theexm10 series is realized using resonantcircuits. These resonant circuits additio-nally provide the ability to vary the trans-mitted power by changing the switchingfrequency. By increasing the switchingfrequency, the available power in the re-ceiver side decreases.For the accurate output voltage regula-tion, a control loop is necessary. Theoutput conditions like output current,voltage and power are measured onthe receiver side and sent to the powertransmitter. If corrections are necessary,the transmitter will change the switchingfrequency to the desired value.An appropriate control loop needs afast signal transmission with little de-lay. Often it’s advantageous to trans-fer status or customer-specific informa-tion between both units. To meet thesetwo demands, the exm10 series pro-vides a data channel that allows theparallel transmission of analog regula-tion information as well as digital statusand customer-specific information. Thistransmission is done using a second pairof coupled coils. Like the power trans-mission coils, the signal coils are forminga near field coupling system thus the in-tended use of radio waves isn’t neces-sary.8/ 10 exm10 series-datasheet-Draft-01.pdf© etatronix GmbH, November 2017
exm10 series10W Wireless Power Receiver with Battery Charger etatronix5 Compliance5.1 ComplianceRegulation DescriptionEN 55011/CISPR11 class BIndustrial, scientific and medical equipment - Radio-frequency disturbance characteristics - Limits and met-hods of measurementIEC/EN 61000-4-3Electromagnetic compatibility (EMC) - Part 4-3: Tes-ting and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity testIEC/EN 61000-4-4Electromagnetic compatibility (EMC) - Part 4-4:Testingand measurement techniques - Electrical fast tran-sient/burst immunity testIEC/EN 61000-4-5 Electromagnetic compatibility (EMC) - Part 4-5: Testingand measurement techniques - Surge immunity testIEC/EN 61000-4-6Electromagnetic compatibility (EMC) - Part 4-6: Testingand measurement techniques - Immunity to conducteddisturbances, induced by radio-frequency fieldsIEC/EN 61000-4-8Electromagnetic compatibility (EMC) - Part 4-8: Testingand measurement techniques - Power frequency mag-netic field immunity testThis device complies with Part 15 of the FCC Rules. Operation is subject to the followingtwo conditions:1. this device may not cause harmful interference, and2.this device must accept any interference received, including interference thatmay cause undesired operation.exm10 series-datasheet-Draft-01.pdf© etatronix GmbH, November 2017 9/ 10
etatronix exm10 series10W Wireless Power Receiver with Battery ChargerReferences[1] etatronix GmbH, FDD - Kommunikation über UART mit WirelessPower Modul -Beschreibung der UART Kommunikation mit einem etatronix Lademodul, Jun. 14,2017.10 / 10 exm10 series-datasheet-Draft-01.pdf© etatronix GmbH, November 2017

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