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Development Board

EPC9058

Quick Start Guide

EPC2110
High Frequency Class-E Wireless Power Amplifier

Revision 1.0

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Summary of Contents for EPC9058

Page 1: ...Development Board EPC9058 Quick Start Guide EPC2110 HighFrequencyClass EWirelessPowerAmplifier Revision 1 0 ...

Page 2: ...ogic circutis and gate driver Adding a 0 Ω resistor in position R90 allows the EPC9058 to be powered using a single supply voltage however in this configuration the maximum operating voltage is limited to between 7 V and 12 V Single endedModeoperation Although the default configuration is differential mode the demo board can be re configured for single ended operation by shorting out C74 which dis...

Page 3: ...han the calculated shunt capacitance the design cannot be realized for the load resistance specified and a new load resistance RLoad mustbechosen Finally thechoke LRFck canbedesignedusingequation5and inthiscase a minimum value is specified Larger values yield lower ripple current which can lead to a more stable operating amplifier A too low value will leadtoincreasedoperatinglossesandchangethemode...

Page 4: ...nditions that can be used to determine the optimal design load resistance Rload Figure 2 EPC9058 power circuit schematic Figure 1 Single ended Class E amplifier with ideal operation waveforms Le1x Le2x LRFck1 LRFck2 Q1 Q2 CCQ1 CCQ2 Coil connection J1 VIN VDD LRFck Le Csh CS ZLoad Q1 50 Time V I VDS ID 3 56 x VDD Ideal waveforms ID ID V I V I PFETloss RLoad RLoad_Design V I VDS VDS ID VDS 50 50 50 ...

Page 5: ...ity Output 1 pad Le1 CSh1 CSh2 Le2 External oscillator Out A oscilloscope probe Ground post Single supply jumper RF Choke 2 7 V 12 VDC 0 V 20 VDCmax VLogic supply note polarity Out B oscilloscope probe Ground pad output Output 2 pad RF choke 1 32 π f VDD LRFck Le Csh CS ZLoad Q1 Capacitance Voltage COSSQ COSS COSSQ COSS VDS dvDS 1 VDD VDD 0 1 5 2 3 4 4 7 6 DC Block RLoad COSSQ Csh RLoad PLoad π2 4...

Page 6: ...14822 9 2 J70 J90 1 Male Vert Würth 61300211121 10 1 Q1 120 V 3 4 A 60 mΩ EPC EPC2110 11 2 R11 R21 2 2 Ω Yageo RC0402JR 072R2L 12 2 R70 R71 0 Ω Samsung RC1005J000CS 13 1 R73 10 kΩ Yageo RC0402FR 0710KL 14 1 R74 10 kΩ Panasonic ERJ 2GEJ103X 15 1 R90 0 Ω EMPTY Stackpole RMCF0603ZT0R00 16 1 U40 100 V eGaN Driver Texas Instruments LM5113TM 17 1 U70 2 In NAND Fairchild NC7SZ00L6X 18 1 U71 2 In AND Fair...

Page 7: ... Single Supply Configuration TBD CQ2 TBD CQ1 V7in OutA OutB 2 2 μF 100 V C20 2 2 μF 100 V C10 TBD Le11 TBD Le12 TBD Le21 TBD Le22 TBD L21 SDM03U40 40 V 30 mA D70 A B Y U71 NC7SZ00L6X 0 Ω 0 Ω 1 2 R90 Out1 Out2 GND 1 Male Vert 1 2 J90 5V V7in MCP1703T 5002E MC 5 0 V 250 mA DFN OUT G ND IN G ND U90 nSD nSD 5 V 10 k 1 2 R74 1 Male Vert 1 2 J70 4 7 μF 10 V C40 1 2 R70 1 2 R71 10 k 1 2 R73 1 1 Male Vert...

Page 8: ...orcompliancewiththeEuropeanUniondirectiveonelectromagneticcompatibilityoranyothersuchdirectivesorregulations Asboard builds are at times subject to product availability it is possible that boards may contain components or assembly materials that are not RoHS compliant Efficient Power Conversion Corporation EPC makesnoguaranteethatthepurchasedboardis100 RoHScompliant TheEvaluationboard orkit isford...

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