EPC 9104 Manuale di avvio rapido - Pagina 2

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DESCRIPTION

The EPC9104 Wireless power demonstration system is a

class D power system capable of delivering up to 15 W into

a load operating at 6.78 MHz (Lowest ISM band). The purpose

of this demonstration system is to simplify the evaluation pro-

cess of the wireless power technology using eGaN® FETs by in-

cluding all the critical components on a single board that can

be easily connected into any existing converter. The EPC9104

wireless power system comprises four boards namely:

1) A Source Board (Transmitter or Power Ampli er)

2) A Source Coil (Transmit Coil)

3) A Device Coil (Receive Coil)

4) A Device Board (Load or Receiver)

The Source board features the EPC2014 (40 V rated) enhance-

ment mode (eGaN®) eld e ect transistors (FETs) in a half

bridge topology, and includes the gate driver and feedback

based phase controller that ensures operation of the system

at 6.78 MHz. The source board can also be operated using an

external oscillator or direct gate driver signals.

The Source and Device Coils are provided by WiTricity Corpo-

ration and have been pre-tuned to operate at 6.78 MHz.

The device board includes a high frequency Schottky di-

ode based full bridge recti er and output lter to deliver a

ltered unregulated DC voltage. The device board comes

equipped with various load resistances that can be manually

Manufacturer

Murata

Diodes Inc.

Linx

Tyco

Stackpole

----

TE Connectivity

Rohm Semiconductor

Tektronix

Keystone

WiTricity

R803

R804

R805

R806

R807

560E 1W

GND2

47E Load Bank

CAUTION - HOT

J801

J802

J803

Vout

.1" Male Vert.

R815

R816

R817

R818

R819

274E 1W

287E 1W

GND2

+Z 137E Load Bank

+Z 144E Load Bank

Load Bank #2

Load Bank #3

Load Bank #4

Part #

GRM188R71H104KA93D

GRM32DF51H106ZA01L

PD3S140-7

CONREVSMA013.062

4-103185-0-02

CSRN2512FKR300

5-1622820-3

MCR100JZHF4220

MCR100JZHF2740

MCR100JZHF2870

MCR100JZHF1400

131-5031-00

5015

190-00038-01

Figure 10: EPC9104-D Device Board Schematic

R808

R809

R810

R811

560E 1W

GND2

J804

J805

Vout

.1" Male Vert.

R820

R821

R822

R823

287E 1W

140E 1W

GND2

+Z 140E Load Bank

+Z 70E Load Bank

Load Bank #5

Load Bank #6

Output

J82

.1" Male Vert.