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Demonstration System
EPC9111/EPC9112
Quick Start Guide
6.78 MHz, ZVS Class-D Wireless Power System
using EPC2014 and EPC2007
Quick Start Guide
Demonstration System EPC9111/EPC9112
DESCRIPTION
The EPC9111 / EPC9112 Wireless power demonstration system is a
high efficiency, A4WP compliant, Zero Voltage Switching (ZVS), Voltage
Mode Class D Wireless Power transfer demonstration system capable of
delivering up to 35 W into a DC load while operating at 6.78 MHz (Lowest
ISM band). It includes a pre-regulator that limits the output current and
voltage and ensures proper operation of the amplifier regardless of coupling and load variations between the source and device. The purpose
of this demonstration system is to simplify the evaluation process of the
wireless power technology using eGaN® FETs.
The EPC9111/ EPC9112 wireless power system comprises three boards
(shown in figure 1) namely:
1) A Source Board (Transmitter or Power Amplifier) EPC9506
(as part of the EPC9111 kit) or EPC9507 (as part of the EPC9112 kit)
2) A Class 3 A4WP compliant Source Coil (Transmit Coil)
3) A Category 3 A4WP compliant Device Coil with rectifier and DC
smoothing capacitor.
The Source board features the EPC2014 (40 V rated - EPC9506) or EPC2007
(100 V rated – EPC9507) enhancement mode field effect transistor (FET)
in a half-bridge topology (single ended configuration) or full-bridge
topology (differential configuration), and includes the gate driver/s and
oscillator that ensures operation of the system at 6.78 MHz. The source
board can also be operated using an external oscillator.
The source board is equipped with a pre-regulator that limits the current
of the supply to the amplifier. As the amplifier draws more current, which
can be due to the absence of a device coil, the pre-regulator will reduce
the voltage being supplied to the amplifier that will ensure a safe operating point. The pre-regulator also monitors the temperature of the main
Parameter
VDD
Control Supply
Input Range
Bus Input Voltage Range –
Pre-Regulator mode
Bus Input Voltage Range –
Bypass mode
Switch Node
Output Voltage
Switch Node Output Current
(each)
External Oscillator
input threshold
VIN
VIN
VOUT
IOUT
Vextosc
VPre_Disable
IPre_Disable
VOsc_Disable
IOsc_Disable
Pre-regulator disable
voltage range
Pre-regulator disable
current
Oscillator disable
voltage range
Oscillator disable
current
Conditions
The Source and Device Coils are Alliance for Wireless Power (A4WP) compliant and have been pre-tuned to operate at 6.78 MHz. The source coil is
class 3 and the device coil is category 3 compliant.
The device board includes a high frequency schottky diode based full
bridge rectifier and output filter to deliver a filtered unregulated DC voltage. The device board comes equipped with two LED’s, one green to indicate the power is being received with an output voltage equal or greater
than 4 V and a second red LED that indicates that the output voltage has
reached the maximum and is above 37 V. The device board can also be
configured as a half bridge rectifier that allows for double output voltage
operation.
For more information on the EPC2014 or EPC2007 eGaN FET please
refer to the datasheet available from EPC at www.epc-co.com. The datasheet should be read in conjunction with this quick start guide.
The Source coil used in this wireless power transfer demo system is
provided by NuCurrent (nucurrent.com). Reverse Engineering of the
Source coil is prohibited and protected by multiple US and
international patents. For additional information on the source coil,
please contact NuCurrent direct or EPC for contact information.
Table 2: Performance Summary (TA = 25 °C) EPC9507
Symbol
Parameter
VDD
Control Supply
Input Range
Bus Input Voltage Range –
Pre-Regulator mode
Bus Input Voltage Range –
Bypass mode
Switch Node
Output Voltage
Switch Node Output Current
(each)
External Oscillator
input threshold
Input ‘Low’
Pre-regulator disable
voltage range
Pre-regulator disable
current
Oscillator disable
voltage range
Oscillator disable
current
VIN
Table 1: Performance Summary (TA = 25 °C) EPC9506
Symbol
amplifier FETs and will reduce current if the temperature exceeds 85°C.
The pre-regulator can be bypassed to allow testing with custom control
hardware. The board further allows easy access to critical measurement
nodes that allow accurate power measurement instrumentation hookup.
A simplified diagram of the amplifier board is given in Figure 2.
Min
Max
Units
VIN
7
12
V
VOUT
8
32
V
IOUT
0
32
V
Vextosc
VIN
V
10*
A
VPre_Disable
IPre_Disable
Input ‘Low’
-0.3
0.8
V
Input ‘High’
2.4
5
V
VOsc_Disable
Open drain/
collector
Open drain/
collector
Open drain/
collector
Open drain/
collector
-0.3
5.5
V
IOsc_Disable
-1
1
mA
-0.3
5
V
-25
25
mA
* Assumes inductive load, maximum current depends on die temperature – actual maximum current with be subject to
switching frequency, bus voltage and thermals.
Conditions
Min
Max
Units
7
12
V
8
36
V
0
80
V
VIN
V
6*
A
-0.3
0.8
V
Input ‘High’
2.4
5
V
Open drain/
collector
Open drain/
collector
Open drain/
collector
Open drain/
collector
-0.3
5.5
V
-1
1
mA
-0.3
5
V
-25
25
mA
* Assumes inductive load, maximum current depends on die temperature – actual maximum current with be subject to
switching frequency, bus voltage and thermals.
Table 3: Performance Summary (TA = 25 °C) Catagory 3 Device Board
Symbol
Parameter
VOUT
IOUT
Conditions
Min
Max
Units
Output Voltage Range
0
38
V
Output Current Range
0
1.5#
A
# Actual maximum current subject to operating temperature limits
PAGE 2 |
| EPC – EFFICIENT POWER CONVERSION CORPORATION | WWW.EPC-CO.COM | COPYRIGHT 2014 |
Quick Start Guide
Demonstration System EPC9111/EPC9112
MECHANICAL ASSEMBLY
The assembly of the EPC9111 / EPC9112 Wireless Demonstration kit is
simple and shown in Figure 1. The source coil and amplifier have been
equipped with reverse polarity SMA connectors. The source coil is simply
connected to the amplifier.
The device board does not need to be mechanically attached to the
source coil.
DETAILED DESCRIPTION
The Amplifier Board (EPC9506 / EPC9507)
Figure 2 shows a diagram of the EPC9506 / EPC9507 ZVS class D amplifier
with pre-regulator. The pre-regulator is set to a specified current limit (up to
1.5 A) by adjusting P49 and operates from 8 V through 36 V input. The output
voltage of the pre-regulator is limited to approximately 2 V below the input
voltage. The pre-regulator can be bypassed by moving the jumper (JP60)
over from the right 2 pins to the left 2 pins. To measure the current the amplifier is drawing, an ammeter can be inserted in place of the jumper (JP60)
in the location based on the operating mode (pre-regulator or bypass).
The amplifier comes with its own oscillator that is pre-programmed to
6.78 MHz ± 678 Hz. It can be disabled by placing a jumper into J70 or
can be externally shutdown using an externally controlled open collector / drain transistor on the terminals of J70 (note which is the ground
connection). The switch needs to be capable of sinking at least 25 mA.
An external oscillator can be used instead of the internal oscillator when
connected to J71 (note which is the ground connection) and the jumper
(JP70) is moved from the right 2 pins to the left 2 pins.
The pre-regulator can also be disabled in the same manner as the oscillator using J51. The pre-regulator can be bypassed, to increase the operating voltage (with no current or thermal protection) to the amplifier or
to use an external regulator, by moving the jumper JP60 from the right
2 pins to the left 2 pins. Jumper JP60 can also be used to connect an
ammeter to measure the current drawn by the amplifier (make sure the
ammeter connects to the pins that correspond to the mode of operation
either bypass or pre-regulator).
Single Ended Operation
The amplifier can be configured for single ended operation where only
devices Q1 and Q2 are used. In this mode only LZVS1 and CZVS are used to
establish ZVS operation. If Q11 and Q12 are populated, then the following
changes need to be made to the board:
1) Remove R76 and R77.
2) Short out C46 and C47.
3) Short the connection of JMP1 (back side of the board)
4) Remove LZVS12 (if populated)
5) Add LZVS1 (270nH)
6) Check that CZVS1 is populated, if not then install.
7) R74 and R75 may need to be adjusted for the new operating
condition to achieve maximum efficiency (see section on ZVS timing
adjustment).
ZVS Timing Adjustment
Setting the correct time to establish ZVS transitions is critical to achieving
high efficiency with the EPC9506 / EPC9507 amplifier. This can be done
by selecting the values for R74 and R75 respectively. This procedure is
best performed using potentiometer P74 and P75 installed that is used to
determine the fixed resistor values. The procedure is the same for both
single ended and differential mode of operation. The timing MUST initial
be set WITHOUT the source coil connected to the amplifier. The timing
diagrams are given in Figure 9 and should be referenced when following
this procedure. Only perform these steps if changes have been made to
the board as it is shipped preset. The steps are:
1. With power off, connect the main input power supply bus to +VIN
(J50). Note the polarity of the supply connector.
2. With power off, connect the control input power supply bus to +VDD
(J90). Note the polarity of the supply connector.
3. Connect a LOW capacitance oscilloscope probe to the probe-hole J2
and lean against the ground post as shown in Figure 8.
4. Turn on the control supply – make sure the supply is between 7 V and
12 V range (7.5 V is recommended).
5. Turn on the main supply voltage to the required predominant
operating value (such as 24 V but NEVER exceed the absolute
maximum voltage of 32 V – EPC9506 or 36V - EPC9507).
6. While observing the oscilloscope adjust P74 for the rising edge
of the waveform so achieve the green waveform of figure 9.
Repeat for the falling edge of the waveform by adjusting P75.
7. Check that the setting remains optimal with a source coil attached.
In this case it is important that the source coil is TUNED to resonance
WITH an applicable load. Theoretically the settings should remain unchanged. Adjust if necessary.
8. Replace the potentiometers with fixed value resistors.
Differential Operation
The amplifier can be configured for differential operation where all the
devices are used; Q1, Q2, Q11 and Q12. In this mode either LZVS1, LZVS11 and
CZVS or LZVS12 only is used to establish ZVS operation.
EPC – EFFICIENT POWER CONVERSION CORPORATION | WWW.EPC-CO.COM | COPYRIGHT 2014 |
| PAGE 3
Quick Start Guide
Demonstration System EPC9111/EPC9112
Determining Component Values for LZVS
The Device Board
The ZVS tank circuit is not operated at resonance, and only provides the
necessary negative device current for self-commutation of the output
voltage at turn off. The capacitance CZVS is chosen to have a very small ripple voltage component and is typically around 1 µF. The amplifier supply
voltage, switch-node transition time will determine the value of inductance for LZVSx which needs to be sufficient to maintain ZVS operation over
the DC device load resistance range and coupling between the device
and source coil range and can be calculated using the following equation:
Figure 4 shows the basic schematic for the device coil which is
category 3 A4WP compliant. The matching network includes both series
and shunt tuning.The matching network series tuning is differential to allow
balanced connection and voltage reduction for the capacitors. The coil
can be configured to used either a half bridge rectifier (by adding a jumper
to the coil at the bottom left of the board) or full bridge rectifier.
LZVS =
∆tvt
8 ∙ fsw∙ COSSQ
Where:
(1)
Δtvt = Voltage transition time [s]
The device board comes equipped with a kelvin connected output
DC voltage measurement terminal and a built in shunt to measure the
output DC current.
Two LEDs have been provided to indicate that the board is receiving
power with an output voltage greater than 4 V (green LED) and that the
board output voltage limit has been reached (greater than 37 V using
the red LED).
fsw = Operating frequency [Hz]
COSSQ = Charge equivalent device output capacitance [F].
64 mm
210 mm
Source Coil
To add additional immunity margin for shifts in coil impedance, the
value of LZVS can be decreased to increase the current at turn off
of the devices (which will increase device losses). Typical voltage
transition times range from 2 ns through 12 ns. For the differential case
the voltage and charge (COSSQ) are doubled.
80 mm
Device Board
50 mm
∫
Amplifier Board
45 mm
Note that the amplifier supply voltage VAMP is absent from the
equation as it is accounted for by the voltage transition time.
The charge equivalent capacitance can be determined using the
following equation:
VAMP
1
(2)
COSSQ =
∙
COSS (v) ∙ dv
VAMP 0
1
The Source Coil
Figure 3 shows the schematic for the source coil which is class 3 A4WP
compliant. The matching network includes both series and shunt
tuning.The matching network series tuning is differential to allow balanced
connection and voltage reduction for the capacitors.
PAGE 4 |
140 mm
Figure 1: Mechanical Assembly of the EPC9111/ EPC9112 Wireless Energy
Transfer Demonstration System
| EPC – EFFICIENT POWER CONVERSION CORPORATION | WWW.EPC-CO.COM | COPYRIGHT 2014 |
Quick Start Guide
Demonstration System EPC9111/EPC9112
QUICK START PROCEDURE
The EPC9111/ EPC9112 demonstration system is easy to set up and
evaluate the performance of the eGaN FET in a wireless power transfer application. Refer to Figure 1 to assemble the system and Figures 4
though Figure 8 for proper connection and measurement setup before
follow the testing procedures.
The EPC9111/ EPC9112 can be operated using any one of two alternative
methods:
a. Using the pre-regulator
b. Bypassing the pre-regulator
a. Operation using the pre-regulator
The pre-regulator is used to supply power to the amplifier in this mode
and will limit the current based on the setting. The pre-regulator also
monitors the temperature of the amplifier and will limit the current in the
event the temperature exceeds 85°C.
1. Make sure the entire system is fully assembled prior to making electrical connections and make sure jumper (JP60 is set to pre-regulator
– right 2 pins).
2. With power off, connect the main input power supply bus to +VIN
(J50). Note the polarity of the supply connector.
3. With power off, connect the control input power supply bus to +VDD
(J90). Note the polarity of the supply connector.
4. Select and connect an applicable load resistance to the device board.
5. Make sure all instrumentation is connected to the system.
6. Turn on the control supply – make sure the supply is between 7 V and
12 V (7.5 V is recommended).
7. Turn on the main supply voltage to the required value (it is recommended to start at 8 V and do not exceed the absolute maximum
voltage of 32 V - EPC9506 or 36 V - EPC9507).
8. Once operation has been confirmed, adjust the main supply voltage
within the operating range and observe the output voltage, efficiency and other parameters on both the amplifier and device boards.
9. For shutdown, please follow steps in the reverse order. Start by reducing the main supply voltage to 0 V followed by steps 6 through 2.
b. Operation bypassing the pre-regulator
In this mode, the pre-regulator is bypassed and the main power is
connected directly to the amplifier. This allows the amplifier to be
operated using an external regulator or to test at higher voltages.
In this mode there is no current or thermal protection for the eGaN FETs.
1. Make sure the entire system is fully assembled prior to making
electrical connections and remove the jumper JP60. Never connect
the main power positive (+) to J50 when operating in bypass mode.
2. With power off, connect the main input power supply ground to the
ground terminal of J50 (-) and the positive (+) to the center pin of
JP60.
3. With power off, connect the control input power supply bus to +VDD
(J90). Note the polarity of the supply connector.
4. Select and connect an applicable load resistance to the device board.
5. Make sure all instrumentation is connected to the system.
6. Turn on the control supply – make sure the supply is between 7 V and
12 V range (7.5 V is recommended).
7. Turn on the main supply voltage to the required value (it is recommended to start at 2 V and do not exceed the absolute maximum
voltage of 32 V - EPC9506 or 80 V - EPC9507).
8. Once operation has been confirmed, adjust the main supply voltage
within the operating range and observe the output voltage,
efficiencyandotherparametersonboththeamplifieranddeviceboards.
See Pre-Cautions when operating in the bypass mode
9. For shutdown, please follow steps in the reverse order. Start by reducing the main supply voltage to 0 V followed by steps 6 through 2.
NOTE. When measuring the high frequency content switch-node (Source Coil Voltage), care
must be taken to avoid long ground leads. An oscilloscope probe connection (preferred
method) has been built into the board to simplify the measurement of the Source Coil Voltage (J2 and J3 as shown in Figure 8).
THERMAL CONSIDERATIONS
The EPC9111/ EPC9112 demonstration system showcases the EPC2014 or
EPC2007 eGaN FET in a wireless energy transfer application. Although the
electrical performance surpasses that of traditional silicon devices, their relatively smaller size does magnify the thermal management requirements.
The EPC9111/ EPC9112 is intended for bench evaluation with room ambient
temperature with load power up to 35 W without the need for a heat-sink.
However, the operator must observe the temperature of the gate driver
and eGaN FETs to ensure that both are operating within the thermal
limits as per the datasheets.
NOTE. The EPC9111/ EPC9112 demonstration system has limited current and thermal protection only when operating off the Pre-Regulator. When bypassing the pre-regulator there
is no current or thermal protection on board and care must be exercised not to over-current
or over-temperature the devices. Wide coil coupling and load range variations can lead to
increased losses in the devices.
Pre-Cautions
The EPC9111/EPC9112 demonstration system has no controller or
enhanced protections systems and therefore should be operated with
caution. Some specific pre-cautions are:
1. Never operate the Source Coil within 6 inches in any direction of any
solid metal objects as this will shift the tuning of the coil. Please contact
EPC should the tuning of the coil be required to change to suit specific
conditions so that it can be correctly adjusted for use with the ZVS
Class-D amplifer.
2. There is no heat-sink on the devices and during experimental evaluation it is
possible present conditions to the amplifier that may cause the devices to
overheat. Always check operating conditions and monitor the temperature of the EPC devices using an IR camera.
EPC – EFFICIENT POWER CONVERSION CORPORATION | WWW.EPC-CO.COM | COPYRIGHT 2014 |
| PAGE 5
Quick Start Guide
Demonstration System EPC9111/EPC9112
Bypass Mode
Connection
Pre-Regulator
Jumper
VAMP
JP60
PreRegulator
Coil
Connection
L ZVS12
Q1
VIN
Q 11
L ZVS11
L ZVS1
+
Single
Ended
Operation
Jumper
Q2
J50
C ZVS
PreRegulation
Connection
Q 12
Figure 2: Diagram of EPC9111/ EPC9112 Amplifier Board
Matching
Impedance
Network
Matching
Impedance
Network
Un-Regulated
DC output
Cat. 3
Coil
Coil
Connection
Class 3
Coil
Device Board
Source Coil
Figure 4: Basic Schematic of the A4WP Category 3 Device Board
7-12 VDC
Gate Drive and
Control Supply
(Note Polarity)
6-36 VDC
VIN Supply
(Note Polarity)
+
+
Figure 3: Diagram of the A4WP Class 3 Source Coil
Stand-off Mounting
Holes (x4)
Amplifier Voltage
Source Jumper
Bypass Connection
Pre-Regulator Jumper
Switch-node Main
Oscilloscope probe
Pre-Regulator
Timing Setting
(Not Installed)
Source Coil
Connection
Amplifier
Timing Setting
(Not Installed)
Ground Post
Pre-Regulator
Current Setting
Switch-node
Secondary
Oscilloscope probe
Disable Pre-Regulator
Jumper
Oscillator Selection
Jumper
External / Internal
Disable Oscillator
Jumper
External
Oscillator
Amplifier Board – Front-side
Figure 5: Proper Connection and Measurement Setup for the Amplifier Board
PAGE 6 |
| EPC – EFFICIENT POWER CONVERSION CORPORATION | WWW.EPC-CO.COM | COPYRIGHT 2014 |
Quick Start Guide
Demonstration System EPC9111/EPC9112
Matching with
trombone tuning
Source Board
Connection
External Load
Connection
Standoffs for Mechanical
attachment to Source Coil
to these locations (x5)
Output Voltage
> 37 V LED
Output Voltage
> 5 V LED
Device Output
mV
Current
(300 m Shunt)
Device Output
Voltage
(0 V – 38 Vmax)
A
Load Current
V
(See Notes for details)
* ONLY to be used with
Shunt removed
Matching
Half / Full Bridge
Mode Jumper
Figure 7: Proper Connection and Measurement Setup for the Device Board
Figure 6: Proper Connection for the Source Coil
Do not use
probe ground lead
Ground
probe
against
post
Place probe tip
in large via
Minimize
loop
Figure 8: Proper Measurement of the Switch Nodes Using the Hole and Ground Post
Q1 turn-off
Q2 turn-off
VAMP
VAMP
Q2 turn-on
0
Partial
Shoot- ZVS
through
Q1 turn-on
time
ZVS
0
Partial
Shoot- ZVS
through
time
ZVS
ZVS + Diode
Conduction
ZVS + Diode
Conduction
Figure 9: ZVS Timing Diagrams
EPC – EFFICIENT POWER CONVERSION CORPORATION | WWW.EPC-CO.COM | COPYRIGHT 2014 |
| PAGE 7
Quick Start Guide
Demonstration System EPC9111/EPC9112
Table 4 : Bill of Materials - Amplifier Board
Item
Qty
Reference
1
12
C1, C2, C3, C4, C11, C12, C13, C14
10nF, 100V
C55, C66, C67, C68
PartDescription
Manufacturer
Part #
TDK
C1005X7S2A103K050BB
2
7
C5, C6, C15, C16, C62, C64, C65
4.7µF, 50V (EPC9506)
2.2µF, 100V (EPC9507)
Taiyo Yuden
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
4
2
5
1
2
1
3
4
1
2
3
1
4
1
2
1
4
C40, C44 C52, C60
C41, C45
C42, C43, C46, C47 C84
C50
C53, C54
C56
C57, C63, C70
C71, C72, C80, C81
C73
C82, C83
C90, C91, C92
Czvs1
D74, D75, D82, D83
J1
J44, J61
J50
J51, J70, J71, J90
4.7µF, 16V
22nF, 25V
47pF, 50V
1µF, 50V
2.2nF, 50V
1nF, 50V
100nF, 25V
100nF, 25V
DNP, 100pF, 25V
100pF, 25V
1µF, 25V
DNP 1µF, 50V
40V, 30mA
SMA Board Edge
.1" Male Vert.
.156" Male Vert.
.1" Male Vert.
TDK
TDK
Yageo
Taiyo Yuden
Yageo
Yageo
TDK
TDK
Generic
TDK
TDK
Taiyo Yuden
Diodes Inc.
Linx
Tyco
Würth
Würth
UMK325BJ475MM-T
HMK325B7225KN-T
C1608X5R1C475K
C1005X7R1E223K050BB
CC0402JRNPO9BN470
UMK107AB7105KA-T
CC0402KRX7R9BB222
CC0402KRX7R9BB102
C1005X7R1E104K050BB
C1608X7R1E104K
Generic
C1608C0G1H101J080AA
C1608X7R1E105K
C2012X7R1H105K125AB
SDM03U40
CONREVSMA013.062
4-103185-0-01
645002114822
61300311121
20
1
JMP1
DNP
–
–
21
22
23
24
25
26
2
1
2
1
1
4
JP60, JP70
L60
Lzvs1, Lzvs11
Lzvs12
P49
P74, P75, P82, P83
.1" Male Vert.
10µH
DNP, 270nH
500nH
DNP, 10k
DNP, 1k
Tyco
Würth
CoilCraft
CoilCraft
Murata
Murata
27
6
Q1, Q2, Q11, Q12, Q60, Q61
40V, 10A, 16mΩ (EPC9506)
100V, 6A, 30mΩ (EPC9507)
EPC
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
6
1
1
1
1
1
1
1
3
1
1
1
1
1
1
1
1
2
1
1
1
R1, R2, R11, R12, R60, R61
R47
R48
R49
R50
R51
R52
R54
R55, R56, R84
R57
R58
R59
R62
R70
R73
R74
R75
R76, R77
R82
R83
RT1
2Ω2
6.04k
2.74k
3.3k
40.2k
280k
10k
15k
10Ω
374k
124k
45.3k
24mΩ 1W
47k
10k
100Ω(EPC9506)/93.1Ω(EPC9507)
124Ω (EPC9506)/133Ω (EPC9507)
0Ω
31.6Ω
191Ω
470k at 25°C
Yageo
Panasonic
Panasonic
Panasonic
Yageo
Panasonic
Yageo
Yageo
Yageo
Panasonic
Panasonic
Panasonic
Susumu
Stackpole
Yageo
Panasonic
Panasonic
Yageo
Panasonic
Panasonic
Murata
4-103185-0-03
744314101
2222SQ-271JEB
2929SQ-501JEB
PV37Y103C01B00
PV37Y102C01B00
EPC2014
EPC2007
RC0402JR-072R2L
ERJ-2RKF6041X
ERJ-2RKF2741X
ERJ-2RKF3301X
RC0402FR-0740K2L
ERJ-2RKF2803X
RC0402FR-0710KL
RC0402JR-0715KL
RC0402FR-0710RL
ERJ-2RKF3743X
ERJ-2RKF1243X
ERJ-2RKF4532X
PRL1632-R024-F-T1
RMCF0603JT47K0
RC0603JR-0710KL
ERJ-3EKF1000V,ERJ-3EKF93R1V
ERJ-3EKF1240V, ERJ-3EKF1330V
RC0603JR-070RL
ERJ-3EKF31R6V
ERJ-3EKF1910V
NCP15WM474E03RC
(continued on next page)
PAGE 8 |
| EPC – EFFICIENT POWER CONVERSION CORPORATION | WWW.EPC-CO.COM | COPYRIGHT 2014 |
Quick Start Guide
Demonstration System EPC9111/EPC9112
Table 4 : Bill of Materials - Amplifier Board (continued)
Item
Qty
49
50
51
52
53
54
55
2
3
1
1
2
2
1
56
2
Reference
Part Description
Manufacturer
Part #
TP1, TP2
U40, U44, U60
U50
U70
U71, U80
U72, U81
U90
JPR1 (JP60 right), JPR2
(JP70 right)
SMD probe loop
100V eGaN Driver
Step Down Controller
Programmable Oscillator – 6.78MHz
2 In AND
2 In NAND
5.0V, 250mA, DFN
Keystone
Texas Instruments
Linear Technologies
EPSON
Fairchild
Fairchild
Microchip
5015
LM5113TM
LT3741EUF#PBF
SG-8002CE
NC7SZ08L6X
NC7SZ00L6X
MCP1703T-5002E/MC
.1”jumper
TE Connectivity
382811-8
Table 5: Bill of Materials - Source Coil
Item
Qty
Reference
Part Description
Manufacturer
Part #
1
2
3
4
5
6
7
8
1
1
1
1
1
2
1
1
Ctrombone
C1
C2
C3
PCB1
C4, C6
C5
J1
680pF, 300V
DNP
15pF, 1500V
560pF, 300V
Class 3 coil former
0Ω, 0612
DNP
SMA PCB edge
Vishay
–
Vishay
Vishay
NuCurrent
Vishay
–
Linx
VJ1111D681KXDAR
–
VJ1111D150JXRAJ
VJ1111D561KXDAR
R26_RZTX_D1
RCL06120000Z0EA
–
CONREVSMA003.031
Reference
Part Description
Manufacturer
Part #
C84
C85
PCB1
CM1, CM11
CM2, CM12, CMP1, CMP2
CM5, CM7, CMP3
CM6, CM8
CMP4
D80, D81, D82, D83
D84
D85
D86
D87
J81, J82
LM1, LM11
R80
R81
R82
TP1, TP2, TP3, TP4
JPR1
100nF, 50V
10µF, 50V
Cat3PRU
300pF
DNP
DNP
56pF
100pF
40V, 1A
LED 0603 Green
2.7V 250mW
LED 0603 Red
33V, 250mW
.1" Male Vert.
82nH
300mΩ, 1W
4.7k
422Ω
SMD probe loop
Wire Jumper at CM11
Murata
Murata
Coastal Circuits
Vishay
Vishay
Vishay
Vishay
Vishay
Diodes Inc.
Lite-On
NXP
Lite-On
NXP
Würth
Würth
Stackpole
Stackpole
Yageo
Keystone
GRM188R71H104KA93D
GRM32DF51H106ZA01L
Cat3DeviceBoard
VJ1111D301KXLAT
VJ1111D101JXRAT, VJ1111D560JXRAJ
VJ0505D101JXCAJ
VJ0505D560JXPAJ
VJ0505D101JXCAJ
PD3S140-7
LTST-C193KGKT-5A
BZX84-C2V7,215
LTST-C193KRKT-5A
BZX84-C33,215
61300211121
744912182
CSRN2512FKR300
RMCF1206FT4K70
RMCF0603FT422R
5015
Table 6: Bill of Materials - Device Board
Item
Qty
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
1
1
2
4
3
2
1
4
1
1
1
1
2
2
1
1
1
4
1
–
–
EPC would like to acknowledge Texas Instruments (www.ti.com), Vishay Intertechnology (www.vishay.com) and Würth Electronics (www.we-online.com/web/en/wuerth_elektronik/start.php) for their support of this project.
EPC – EFFICIENT POWER CONVERSION CORPORATION | WWW.EPC-CO.COM | COPYRIGHT 2014 |
| PAGE 9
Quick Start Guide
3
2
1
J P 70
.1" Male Vert.
J P 70
.1" Male Vert.
Y
B
5V
P74
OSC
DNP 1k
5V
C71
100nF, 25V
5V
R74
1
R_ S ig
U71
NC 7S Z 08L 6X
A
Deadtime Right
P74
Y
B
R_ S ig
82Ω/93.1Ω
5V
D74
40V 30mA
GRH1
GRL1
2
C42
47pF , 50V
R_ S ig
L _S ig
C42
47pF , 50V
C43
47pF , 50V
GLH1
1
R2
2Ω2
L _S ig
5V
IntOs c
2
5V
J 70
C701
100nF,
2 25V
ble
1
OE
IntOs c
2
R75
L _S ig 1
P 75
OSC
C72
100nF, 25V
U72
NC7SZ00L6X
A
1
D75
R73 40V 30mA
10k
2
C73
100pF, 25V
2
5V
P 75
L ogic Supply
IN
OUT
7.5V D C - 12VDC
C90
1µF , 25V J 90
1
2
V7 IN
.1" Ma le Ve rt.
R77
L _S ig 1
2
R76
2
C47
47pF , 50V
Gate Driver
2
R_ S ig 1
R77
R12
2Ω2
5V
GND
5V
C91
1µF , 25V
C92
1µF , 25V
OUT B
5VHS2
OUT
B
GRH2
GRL2
VIN
VOUT
PreRegulator
EPC9507PR_r1_1.SchDoc
Pre-Regulator
VAMP
1
R11 C11
P robeHole
2Ω2 10nF , 100V
GRH2 1
2 GRL2
Q11
EPC2014/EPC2007
GLH2
GLL2
GLH2 1
J 50
.156" Male Vert.
1
Temp
2
5V
GND
VIN
VIN
Single Ended
Operation Only
Lzvs 11
DNP 270nH
VAMP
VAMP
C12
10nF , 100V
J3
C15
VAMP
4.7µF
1 50V, 2.2µF 100V
C11
10nF , 100V
P robeHole
VAMP
C13
10nF , 100V
C14
10nF , 100V
OUT B
VAMP
C16
V
4.7µF 50V, 2.2µF 100V AMP
2 GLL2
Q12
EPC2014/EPC2007
VIN
C13
10nF , 100V
VAMP
VAMP
V
C14
10nF , 100V
VIN
J 50
.156" Male Vert.
P re-R egulator B ypass 1
VIN
2
B oard
Standoffs
V
V
IN
OUT
VAMP
B ypass
F D1P re-RFegulator
D2
L ocal F iducials
Main Supply
6V ~ 32V 2A max EP C 95 06
6V ~ 36V 2A max EP C 95 07
Pre-RegulatorZVS Class D Wireless Power Source Board using EPC2014/EPC2007
Differential
Logic Supply Regulator
Differential ZVS Class D Wireless Power Source Board using EPC2014/EPC200
Logic Supply Regulator
Figure 10: EPC9111/ EPC9112 Source Board Amplifier Schematic
PAGE 10 |
V
C12
10nF , 100V
J P 60
.1" Ma le Ve rt.
VOUT
VAMP
Main Supply VOUT
VOUT
6V ~ 32V 2A max EP C 95 06
6V ~ 36V 2A max EP C 95 07
PreRegulator
EPC9507PR_r1_1.SchDoc
VAMP
J P 60
.1" Ma le Ve rt.
Gate Driver
VOUT
L zvs12
500nH
J MP 1
DNP
V
AMP
Secondary
Amplifier
R12
2Ω2
J1
SMA Board Ed
Lzvs 1
DNP 270 nH
Ground Post
5V
2
5V
C4
10nF , 100V
J2
.1" Ma le Ve rt.
J3
0Ω
VIN
VAMP
1
J1
SMA Board EdgeP robeHole
GLL1
Q2
1
OutB
2 GLL2
Q12
EPC2014/EPC2007
Temp
5V
U90
C92 5.0V 250mA DF N
1µF , 25V
IN
OUT
C90
1µF , 25V
GLH2 1
C6
RT 1 2.2µF 100V VAMP
4.7µF 50V,
470k @ 25°C
C3
10nF , 100V
OUTA
Czvs1
DNP 1µF 50V
J 44
Lzvs 11
DNP 270nH
C45
22nF , 25V
2 GRL2
U44 Q11
LM5113TM
EPC2014/EPC2007
C47
47pF , 50V
D75
40V 30mA
5V
C91
1µF , 25V
V7 IN
2Ω2
Secondary Amplifier
GLH2
GLL2
0Ω
C46
47pF , 50V
0Ω
L _S ig
VAMP
5V
DNP 1k
C72
100nF, 25V
GND
V7 IN
OutB
R_ S ig 1
124Ω/133Ω
Deadtime Left
U90
5.0V 250mA DF N
DC
2
C46
47pF , 50V
B
GND
1
5V
2
R73
10k
OSC
DNP 1k
R75
1
L _S ig
B
R76
0Ω
5V
Deadtime Left
GRH2 1
GRH2
GRL2
Oscillator
124Ω/133Ω
U72
NC7SZ00L6X
A
2
1
R2
2Ω2
C2
10nF , 100V
VAMPT emp
Z V S Tank Cir cuit
C44
4.7µF , R11
16V
5VHS2
C70
100nF, 25V
C4
10nF , 100V
TP2
5VHS2
Ground Post
OUT B
U44
LM5113TM
5V
VAMP
VAMP
EPC2014/EPC2007
.1" Ma le Ve rt.
5V
VAMP
1
L zvs12
500nH S MD probe loop
Czvs1
DNP 1µF 50V
J 44
C5
V
4.7µF 50V, 2.2µF 100V AMP
C1
10nF , 100V
Main Amplifier
P robeHole
GLH1
GLH1
GLL1 Lzvs 1
DNP 270 nH
Gate Driver
Z V S Tank Cir cuit
C45
22nF , 25V
Oscillator Disable
1
OSC
C44
4.7µF , 16V
3
OUT
GND
.1" Male Vert.
Oscillator
5V
VCC
1
1
U70
Pgm Osc.
Temp
GND
5V
SMD probe loop
VAMP
RT 1
470k @ 25°C
C3
R1 10nF , 100V
2Ω2
2
GRH1 1
GRL1
Q1
EPC2014/EPC2007
S MD probe loop
5VHS2
5V
5V
R70
47k
4
3
OUT
GLL1
Q2
1
C43
47pF , 50V
1
4
VCC
OE
2
1
2
VAMP
C2
10nF , 100V
J2
OUTA
TP2
1
2
R70
47k
U70
Pgm Osc.
GRH1
OUTA
GRL1
EPC2014/EPC2007
Gate Driver
D74
40V 30mA
5V
5VHS 1
Main Amplifier
R_ S ig
GLH1
GLL1
DNP 1k
C71
100nF, 25V
OUTA
OUTA
5V
T emp
C41
22nF , 25V
VAMP
3
2
1
82Ω/93.1Ω
C40
4.7µF , 16VR1
2Ω2
GRH1 1
2
GRL1
U40 Q1
EPC2014/EPC2007
LM5113TM
5VHS 1
2
Deadtime Right
VAMP
OUTA
U40
LM5113TM
VAMP
C1
T P 1 10nF , 100V
VAMP
1
5VHS 1
1
R74
1
VAMP
SMD probe loop
t°
External Oscillator
5V
3
2
1
A
C41
22nF , 25V
Internal/External Oscillator
U71
NC 7S Z 08L 6X
OSC
C40
4.7µF , 16V
OSC
.1" Male Ve rt.
5V
T P1
5VHS 1
1
ExtOsc
2
5V
IntOsc
1
ExtOsc
1
Internal/External Oscillator
2
t°
J 71
2
OSC
Temp
ExtOsc
3
2
1
IntOsc
r
7 IN
Demonstration System EPC9111/EPC9112
| EPC – EFFICIENT POWER CONVERSION CORPORATION | WWW.EPC-CO.COM | COPYRIGHT 2014 |
NC7SZ
P WM
Quick Start Guide
A
Y
B
Demonstration System EPC9111/EPC9112
5V
C80
100nF , 25V
1
VIN
R57
374k
J 51
2
PreRegulator Disable
P reDis
1
1
2
R58
124k
VIN
2
VIN
R50
2
40.2k
E N/UVLO
V REF
S ync
12
Rt
10
VC
5
C nt1
HG
18
LG
1
9
1
GND
GND
HG 1
R84
2
PWM
10Ω
C84
47pF , 50V
8
R55 10Ω
R56 10Ω
HG PR
VOUT
2 S ns+
R51
280k
2 VOUT
Vfd bk
LG PR
Gate
R52
10k
C56
1nF , 50V
21
4
R47
6.04k
17
15
16
1.2V
GND
C55
10nF , 100V
14
P 49
C5 2
4.7µF , 16V
7
SS
C nt2
GND
2
6
3
1
2
DNP 10k
5V
2
C54
2.2 nF , 50V
1.5V
C57
100nF , 25V
R48
2.74k
11
R49
3.3k
1
R54
15k
Cnt
1
2
1
VREF
O sc
U60
LM511
VCCINT
19
UVLO
1
1
1
2
13
2
P reDis
VREF
1
C53
2.2nF , 50V
C60
4.7µF , 16V
20
U50
LT3741EUF #PBF
5V
5V
C50
1µF , 50V
2
.1" Male Ve rt.
VREF
1
Current Set
PWM
R59
45.3k
A
2
B
5V
Temp
C81
100nF , 25V
5V
1
U80
NC7SZ08L6X
P WM
A
B
R82
2
31.6Ω
Deadtime Upper
P 82
Y
HG
PR
5V
DNP 1k
C80
100nF , 25V
Buffer
D82
40V 3 0mA
C82
100pF , 25V
VIN
VIN
5VUP
5V
5V
C50
1µF , 50V
C60
4.7µF , 16V
HG 1
2
1
R56 10Ω
HG PR
VOUT
GL PH
R60
1 2Ω2
2
VIN
VIN
C68
10nF , 100V
C64
4.7µF 50V, 2.2µF 100V
G UP L
Q61
L 60
1
10uH
S ns+
GL PL
Q60
EPC2014/EPC2007
1
Vfd bk
GL PH
GL PL
LG PR
2
P robeHole
5V
R51
280k
2 VOUT
R61
2Ω2
VIN
EPC2014/EPC2007
J 62
SW
1
SW
1
2 S ns+
1
2
1
R55 10Ω
GUPH
G UP H
G UP L
C84
47pF , 50V
LG
5VUP
PWM
10Ω
HG
R62
2
24mΩ 1W
VIN
VIN
C66
10nF , 100V
C67
10nF , 100V
VOUT
VOUT
C62
4.7µF 50V,
2.2µF 100V
Gate Driver
R52
10k
J 61
2
C56
1nF , 50V
R84
VIN
SW
U60
LM5113TM
C5 2
4.7µF , 16V
C65
4.7µF 50V, 2.2µF 100V
C63
100nF , 25V
VCCINT
GND
5V
1
PWM
A
U81
NC7SZ00L6X
R83
1
.1" Ma le Ve rt.
2
Ground Post
191Ω
Deadtime Lower
P 83
LG P R
B
5V
DNP 1k
C81
100nF , 25V
Buffer
U8
NC
D83
40V 30mA
C83
100pF , 25V
Figure 11: EPC9111/ EPC9112 -Source Board Pre-Regulator Schematic
EPC – EFFICIENT POWER CONVERSION CORPORATION | WWW.EPC-CO.COM | COPYRIGHT 2014 |
| PAGE 11
B
Quick Start Guide
Demonstration System EPC9111/EPC9112
Ctrombone
680 pF 1111
C6
Adjust on trombone 0 Ω 0612
J1
SMA PCB
Edge
PCB1
Cls3PTU
C3
560 pF 1111
Amplifier
Connection
C4
0 Ω 0612
Coil Matching
C2
15 pF 1111
C5
DNP
C1
DNP
Figure 12: Class 3 Source Board Schematic
1
TP3
SMD probe loop
1
Kelvin Output Current
TP4
SMD probe loop
J81
.1" Male Vert.
2
1
Shunt Bypass
VRECT
1
2
R80
300mΩ1W
RX Coil
DNP
56pF
SMD probe loop
TP2
LM 1
Kelvin Output Voltage
1
SMD probe loop
82nH
VRECT
CM P4
100pF
CMP2
DNP
CM 11 CM 7
300pF DNP
C84
100nF, 50V
Matching
LM 11
D81
40V 1A
CM 8
56pF
VOUT
C85
10µF 50V
VOUT
R81
4.7k
D84
LED 0603
Green
82nH
CM 12
DNP
VRECT
1
CM 6
Output
1
R82
422Ω
2
CMP3
DNP
CM 2
D82
40V 1A
.1" Male Vert.
TP1
2
Cl1
Cat3PRU
CMP1
DNP
D80
40V 1A
CM1
300pF
2
1
1
CM 5
DNP
J82
VOUT
D86
LED 0603 Red
D83
40V 1A
D85
2.7V 250mW
D87
33V 250mW
Remove Center Jumper on Coil for Full Bridge Operation
Receive Indicator Over-Voltage Indicator
V OUT > 4V
V OUT > 36V
Figure 13: Category 3 Device Board Schematic
PAGE 12 |
| EPC – EFFICIENT POWER CONVERSION CORPORATION | WWW.EPC-CO.COM | COPYRIGHT 2014 |
For More Information:
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Demonstration Board Notification
The EPC9111 and EPC 9112 boards are 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. Efficient 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 specifications.