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Overview
| Topology | Wireless Power Transfer |
| Input voltage | 7-12 V |
| Switching frequency | 6102-7458 kHz |
| Output 1 | 38 V / 1.5 A |
Description
The EPC9112 wireless power demonstration system is a high efficiency, A4WP compatible, Zero Voltage Switching (ZVS), Voltage Mode class-D wireless power transfer demonstration kit capable of delivering up to 35 W into a DC load while operating at 6.78 MHz (Lowest ISM band). The purpose of this demonstration system is to simplify the evaluation process of wireless power technology using eGaN® FETs.The EPC9112 wireless power system comprises the three boards (shown in Figure 1) namely:1) A Source Board (Transmitter or Power Amplifier) EPC95072) A Class 3 A4WP compliant Source Coil (Transmit Coil)3) A Category 3 A4WP compliant Device Coil with rectifier and DC smoothing capacitor. The amplifier board features the EPC2007C and EPC2038 enhancement mode field effect transistors (FET) in an optional half-bridge topology (single ended configuration) or default full-bridge topology (differential configuration), and includes the gate driver/s and oscillator that ensures operation of the system at 6.78 MHz. This revision of the wireless demonstration amplifier includes a synchronous bootstrap FET supply for the upper FETs of the ZVS class-D amplifier that eliminates the reverse recovery losses of the gate driver’s internal bootstrap diode that dissipates energy in the upper FET. This circuit has been implemented using the new EPC2038 eGaN FET specifically designed for this function. To learn more about the synchronous bootstrap supply please refer to the following [1, 2, 3]. The EPC9507 amplifier board can also be operated using an external oscillator or by using the included new ultra low power Diashinku oscillator.This revision can operate in either Single ended or Differential mode by changing a jumper setting. This allows for high efficiency operation with load impedance ranges that allow for single ended operation.Finally, the timing adjust circuits for the ZVS class-D amplifiers have been separated to further ensure highest possible efficiency setting and includes separate ZVS tank circuits.
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pitch (mm) | Mount | IR (A) | Working Voltage (V (AC)) | PCB/Cable/Panel | Contact Resistance (mΩ) | Tol. R | L (mm) | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Tol. L | Test Condition L | Qmin. (%) | Test Condition Q | RDC max. (mΩ) | Pins (Value) (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Color | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 60900213421 | SPEC | – | 3 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm Multi-Jumper Jumper with Test Point | 2.54 | – | – | 250 | – | 20 | max. | 2.44 | – | – | – | – | – | – | – | – | – | – | – | – | 1 | – | – | Jumper | – | 3 | Bag | Black | |
 | 61300111121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | 2.54 | THT | – | 250 | – | 20 | max. | 2.54 | – | – | – | – | – | – | – | – | – | – | – | – | 1 | Single | – | Pin Header | Straight | 3 | Bag | – | |
 | 61300211121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | 2.54 | THT | – | 250 | – | 20 | max. | 5.08 | – | – | – | – | – | – | – | – | – | – | – | – | 2 | Single | – | Pin Header | Straight | 3 | Bag | – | |
 | 61300311121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | 2.54 | THT | – | 250 | – | 20 | max. | 7.62 | – | – | – | – | – | – | – | – | – | – | – | – | 3 | Single | – | Pin Header | Straight | 3 | Bag | – | |
 | 645002114822 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-WTB 3.96 mm Male Vertical Locking Header | 3.96 | THT | 7 | 250 | PCB | 20 | max. | 7.92 | – | – | – | – | – | – | – | – | – | – | – | – | 2 | – | – | Male | Vertical | 7 | Bag | White | |
 | 744314101 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCI SMT Flat Wire High Current Inductor | – | SMT | – | – | – | – | – | 7 | 10 | 5.3 | 1.8 | 4 | 33 | 40 | Superflux | ±20% | 100 kHz/ 100 mV | – | – | 36.3 | 2 | – | 4.8 | – | – | – | – | – | ||
 | 744912182 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CAIR Air Coil | – | SMT | – | – | – | – | – | 4.83 | 0.082 | – | – | – | – | 1300 | – | ±5% | 150 MHz | 100 | 150 MHz | 9.4 | – | – | 4.2 | – | – | 2.5 | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 60900213421 | SPEC | – |
| 61300111121 | SPEC | – |
| 61300211121 | SPEC | – |
| 61300311121 | SPEC | – |
| 645002114822 | SPEC | – |
| 744314101 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | |
| 744912182 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pitch (mm) | Mount | IR (A) | Working Voltage (V (AC)) | PCB/Cable/Panel | Contact Resistance (mΩ) | Tol. R | L (mm) | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Tol. L | Test Condition L | Qmin. (%) | Test Condition Q | RDC max. (mΩ) | Pins (Value) (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Color | Samples |
|---|