user Guide
VI BRICK
®
AC Front End
Evaluation Board
November 2012
Contents
Features
Introduction
Set Up
Bill of Materials
Recommended
Hardware
Thermals
Ordering Info
Page
1
1
3
5
6
Features
>
Oscilloscope probe jack for output voltage and ripple measurements
>
Simple to use
>
Ring lug, screw terminal, and solder connection options
>
Replaceable fuse (5A, 216 Littelfuse recommended)
IMPORTANT NOTICE:
6
6
Please read this user guide before operating evaluation board.
Introduction
The VI BRICK AC Front End Evaluation Board offers a convenient means to evaluate
the performance of Vicor’s VI BRICK AC Front End module and has been optimized
for user convenience. Refer to the table below for operating conditions and limits.
This product contains an input line filter. It is important to remember the response
of the AC line filter is dependent upon the wiring connected to the evaluation board.
Care should be exercised to minimize stray source impedances in order to fully
exercise the features of the converter.
vicorpower.com
Applications Engineering: 800 735.6200
Rev 1.2
Page 1
Figure 1
VI BRICK AC Front End
Evaluation Board layout and
dimensional drawing,
component side.
(Click on drawing to view larger.)
Basic Specifications and Operating Limits
Please use the following table for operating limits:
Table 1
Operating Limits
Description
Input Range
Output voltage
Output Power
Operating temperature
Output capacitance
Specification
85 – 264 Vac
48 Vdc
330 W Over entire input range
-40 to 100 °C
6,000 to 12,000μF
Notes
Universal input
Partially Regulated, SELV
Case temperature
63V rating
Please refer to Figure 1 for locations of the input and output connections as viewed
from the component side. Wires may be soldered directly to the pads instead of ring
lugs if desired to minimize circuit impedances.
vicorpower.com
Applications Engineering: 800 735.6200
Rev 1.2
Page 2
DANGER! HIGH VOLTAGE!
DANGER! HOT SURFACE!
The VI BRICK AC Front End Evaluation Board contains exposed hazardous voltages.
These voltages are within the area marked by the hashed line on the board.
The VI BRICK AC Front End Evaluation Board may be operated at surface
temperatures which may pose a thermal hazard to the operator. Because of the
thermal and voltage hazards, be careful not to touch any exposed surface unless the
power is disconnected and the evaluation board has been given sufficient time to cool.
The evaluation board is not intended for use in end item equipment.
Set Up
The Customer Evaluation Board should be set up as follows:
Note: Care should be taken to avoid reversing polarities if connecting to the opposite
(solder) side of the board.
AC Input Connections (J01)
DANGER! HIGH VOLTAGE!
J01, the screw terminal connector, is for connection of AC input to the AC-DC
converter evaluation board. The interconnect leads should be appropriate for the
current and voltage supplied to the board.
For single phase power, connect LINE to the pin marked L, NEUTRAL to the pin
marked N and earth ground to the pin marked EARTH. Corresponding wires in an IEC
cable are brown, blue, and yellow with a green stripe.
The board can be used with three phase power. Connect LINE1 to L and LINE2 to N.
Earth ground should still be connected to the EARTH terminal of J1.
+OUT, –OUT
There are several connections available on the VI BRICK AC Front End Evaluation
Board. Table 1 lists the available connectors and their current rating. Do not exceed
the rating of the connector or the module.
Table 2
Output Connector Ratings
Connector
J02
J03
Ring Lugs
H03 (+OUT) & H07 (-OUT)
Rating
10 A
12 A (3 A/contact)
100 A
12 A
Recommended
Connection
Hold-up capacitor
Mating PRM and BCM eval
boards
General Purpose
Hold-up capacitor
Output bulk (electrolytic) capacitance must be attached across the output of the VI
BRICK AC Front End Evaluation Board. Refer to table 1 from previous page for the
appropriate range of output capacitance.
vicorpower.com
Applications Engineering: 800 735.6200
Rev 1.2
Page 3
The load should be connected to +OUT and –OUT terminals of the evaluation board
with short leads of suitable gauge to carry the output current and minimize losses.
A sufficient number of terminal connections should be used to ensure that no
terminal sees more than its maximum rated current. The evaluation board can be
connected directly to the application for which the module is intended. However
the interconnect impedances between the evaluation board and the application
can greatly affect the transient response. For applications where transient response
is critical, the user should consider mounting the VI BRICK AC Front End module
directly to the target application PCB. Test points TP12 (–OUT) and TP07 (+OUT) can
be used to monitor the output and are located on the PCB adjacent to the output
terminals of the AC Front End module.
Earth Connections
There are several earth connections available on the board. Earth must be connected
via a low impedance connection in order for the internal line filter to function. These
earth connections also provide a safety ground for the baseplate of the module.
Earth may optionally be connected to either of the VI BRICK AC Front End outputs in
order to provide a positive or negative voltage rail with respect to earth.
Output Voltage Measurement Jack (J12)
This connector is provided to make accurate measurements of the output ripple
voltage of the VI BRICK AC Front End. Many types of scope probes may be directly
connected to this point if the probe is equipped with a removable plastic sheath.
To avoid creating ground loops when making measurements of the output or input
voltage, these measurements should be made separately.
Figure 2
VI BRICK AC Front End
Output capacitor (C29) can be
added to reduce switching frequency
voltage ripple at the probe.
(Click on drawing to view larger.)
vicorpower.com
Applications Engineering: 800 735.6200
Rev 1.2
Page 4
Table 3
Bill of Materials
Ref.
Desc.
C01
C12
C13
C29
C30
C31
C32
C33
C34
C35
C36
C37
C38
C39
F01
H03 &
H07
J01
J02
J03
Description
CAP X7R 2200pF
10% 250V 2220
CAPY X7R 4700pF
10% 250V 2220
Digi-Key
Manufacturer
Murata
Murata
Digi-Key
Part #
490-3480-2-ND
490-3482-2-ND
Future
Manufacturer
Murata
Murata
Future
Part #
GA355QR7GF222KW01L
GA355DR7GF472KW01L
NOT APPLIED
NOT APPLIED
NOT APPLIED
NOT APPLIED
NOT APPLIED
CAP X7R .1uF
10% 25V 0805
CAP ALUM 100UF
63V 20% RADIAL
FUSE HOLDER,
SMD, 5x20
CAP ALEL 6800uF
20% 63V 25X50
CON 3CKT TERM
BLK SMD
CON 2 CKT TERM
BLK SMD
Murata
Nichicon
Wickmann
Kemet
No Stock
No Stock
490-1673-2-ND
Murata
GRM21BR71E104KA01L
UVY1J101MPD
31.8225
UVZ1J682MRD
140-A-126-SMD/03
140-A-126-SMD/02
PPTC052LJBN-RC
UVY1J101MPD-ND Nichicon
F4546-ND
493-1135-ND
No Stock
No Stock
S5519-ND
Schurter
Nichicon
Weco
Weco
Sullins
Electronics
TE Connectivity
CONN 10POS
Sullins
90DEG THRUHOLE
Electronics
FEMALE 0.1SPC
CONN 5POS
SINGLE ROW
RIGHT ANGLE
RES 0 OHM 3/4W
5% 2010
NOT APPLIED
IND 15.0uH
10% 5mA 0805
IND COM MODE
600uH 30% 10A
Model Specific
RES 6.81 OHM
1/8W 1% 0805
RES 2.2 OHM
1/4W 1% 1206
NOT APPLIED
VAR MOV, 300V
10KA 20mm
DIA RADIAL
Vicor
Vishay Dale
Vishay Dale
NOT APPLIED
Littelfuse
Molex
J05
WM1893-ND
1445057-5
JP02
JP03
L01
L05
PS01
R01
R09
R10
Z01
Vishay Dale
NOT APPLIED
541-0.0WTR-ND Vishay Dale
NOT APPLIED
NOT APPLIED
CRCW20100000Z0EF
NOT APPLIED
Stocked by Mouser, part#: MLF2012C150KT
Stocked by Vicor, part#: 37052-601
Model Specific
Vicor
Model Specific
CRCW08056R81FKEA
CRCW12062R20FKEA
NOT APPLIED
TMOV20RP300E
541-6.81CCTRND Vishay Dale
541-2.20FFTRND Vishay Dale
NOT APPLIED
TMOV20RP30
0EL2T7-ND
NOT APPLIED
Littelfuse
vicorpower.com
Applications Engineering: 800 735.6200
Rev 1.2
Page 5
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