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Demonstration Board Noti cation
The EPC9104 board is intended for product evaluation purposes only and is not intended for commercial use. As an evaluation tool, it is not
designed for compliance with the European Union directive on electromagnetic compatibility or any other such directives or regulations. As
board builds are at times subject to product availability, it is possible that boards may contain components or assembly materials that are not
RoHS compliant. E cient Power Conversion Corporation (EPC) makes no guarantee that the purchased board is 100% RoHS compliant. No
Licenses are implied or granted under any patent right or other intellectual property whatsoever. EPC assumes no liability for applications
assistance, customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.
EPC reserves the right at any time, without notice, to change said circuitry and speci cations.
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Peter Cheng
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Demonstration Board EPC9104
Quick Start Guide
15 W, 6.78 MHz Class D Wireless Power System
using the EPC2014 eGaN® FET
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Related Manuals for EPC 9104
Summary of Contents for EPC 9104
- Page 1 RoHS compliant. E cient Power Conversion Corporation (EPC) makes no guarantee that the purchased board is 100% RoHS compliant. No Licenses are implied or granted under any patent right or other intellectual property whatsoever.
- Page 2 DESCRIPTION Manufacturer Part # Murata GRM188R71H104KA93D Murata GRM32DF51H106ZA01L The EPC9104 Wireless power demonstration system is a Diodes Inc. PD3S140-7 class D power system capable of delivering up to 15 W into Linx CONREVSMA013.062 a load operating at 6.78 MHz (Lowest ISM band). The purpose Tyco 4-103185-0-02 of this demonstration system is to simplify the evaluation pro-...
- Page 3 For more information on the EPC2014 eGaN FET please refer to R817, R818, R819, R820 287E 1W the datasheet available from EPC at www.epc-co.com. The data- R821, R822, R823 140E 1W sheet should be read in conjunction with this quick start guide.
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Page 4: Assembly Procedure
ASSEMBLY PROCEDURE Although the EPC9104 demonstration unit comes mostly pre- assembled, the stando s need to be attached to the system prior to testing. The stando s raise the boards 2 inches above Main Coil Supply the work surface to ensure that metal work surfaces do not 5.0V 250mA DFN 5VHS Vsup... - Page 5 5.0V 250mA DFN 2.5V 5mA Ref 7.5VDC - 12VDC 2.5Vref 2.5Vref 1uF, 25V 1uF, 25V 100nF, 50V .1” Male Vert. 22uF, 25V 22uF, 25V Control Supply Regulator Voltage Reference Hdrv Ldrv .1” Male Vert. 40V 1A Direct Gate Drive...
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Page 6: Quick Start Procedure
The phase follower controller uses the coil feedback voltage to Yageo RC0603JR-07240RL Stackpole RMCF0603ZT0R00 generate the gating signals that allow for precise frequency con- trol, regardless of load. The frequency has been pre-set by EPC to Yageo RC0603JR-0710KL 6.78 MHz. Murata PV37Y102C01B00... - Page 7 Table 3 : Bill of Materials - Source Board www.epc-co.com Item Reference Part Description C14, C15 120pF 250V C20, C30, C32, C33, C50, C52, C71, 5. Make sure the jumper (J61) is in the internal feedback posi- 100nF, 50V C78, C94 tion (default 1-2) 4.7uF, 25V...
- Page 8 7 V – 12 V Gate Drive and Upper FET Gate Switch-node Control Supply www.epc-co.com Oscillatoscope Probe Oscilloscope Probe (note polarity) Coil Voltage Feedback Switch-node - hole & post (Operation • Avoid contact with the load bank surface as it can be hot when in operation.
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Page 9: Thermal Considerations
THERMAL CONSIDERATIONS The EPC9104 demonstration system showcases the EPC2014 eGaN Mechanically FET in a wireless application. Although the electrical performance Attached Source Coil to these surpasses that for traditional Si devices, their relatively smaller locations size does magnify the thermal management requirements. The EPC9104 is intended for bench evaluation with low ambient tem- perature and convection cooling with load power up to 10 W (the Device... - Page 10 QUICK START PROCEDURE www.epc-co.com b. Operation using an external oscillator Do not use Using an external oscillator allows the user to specify an operating probe ground lead frequency. The external oscillator voltage may be pure AC (sine or square wave) or have a DC o set (see Table 1 for voltage limits).
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Page 11: Load Settings
LOAD SETTINGS www.epc-co.com The device board comes pre-equipped with various loads that can be manually programmed to speci c values. Table 2 provides a list 9. Once operational, adjust the main supply voltage and oscil- of all possible combinations to set the load. This list is the recom-... - Page 12 QUICK START PROCEDURE www.epc-co.com c. Operation using direct gating signal control 6. With power o , connect the control input power supply bus to +V (J90). Note the polarity of the supply connector. This method of operating the wireless system is similar to opera- 7.
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