the Evaluation Board.
and it is not designed to be used or installed in 鈥淓nd Use鈥?/div>
equipment.
The PRM / VTM Chip Set mounted on this Evaluation Board
features a unique "Adaptive Loop" compensation feedback:
a single-wire alternative to traditional remote sensing and
feedback loops that enables precise control of an isolated
Point-of-Load (POL) voltage without the need for either a
direct connection to the POL or for noise sensitive, bandwidth
limiting, isolation devices in the feedback path.
Recommended Fastening Hardware:
QTY
4
4
4
4
4
Description
Manufacturer P/N
Vicor P/N
#6 AWG Ring Lug PANDUIT LCAS6-10-L
#10-32 Screw
#10 Flat Washer
Kit # 26647
#10 Lock Washer
#10 Hex Nut
}
All hardware is Stainless Steel except Ring Lugs.
Kit # 26647 is not included with Evaluation Board.
Test Procedure
1.0 Recommended Equipment
1.1 DC Power supply 鈥?0-100 V; 500 W; 10 A
1.2 DC Electronic load 鈥?Pulse capable; 0-100 V; 100 A
1.3 DMM
1.4 Oscilloscope
1.5 Interconnect cables (appropriately sized for current)
1.6 Fastening hardware
1.7 Fan
1.8 Safety glasses
1.9 Data sheets for the specific PRM and VTM models
2.0 Description of FPA Evaluation Board Components and
Features
(Refer to Figure 2 or 3 for item location)
2.1 +IN and -IN
Source voltage connection terminals
2.2 PC/TP1
Enable / disable connection terminal
2.3 IL
Resistor R1 for adjusting current limit
2.4 SC
Capacitor C5 for adjusting soft start
2.5 OS
Output voltage set resistor R4
2.6 CD
Compensation device resistor R6
2.7 C6
Optional Vf capacitor
2.8 J1
Vf VIEW oscilloscope jack
2.9 TP2/TP4
+ / -VTM input Kelvin connection
test points
2.10 TP3/TP5
+ / -VTM output Kelvin connection
test points
2.11 J2
Vo VIEW output voltage oscilloscope jack
2.12 +OUT / -OUT Load connection terminals
DC-DC Converter Implementation
VC
PC
TM
IL
NC
PR
VH
SC
SG
OS
NC
CD
+Out
+In
PRM-AL
Factorized
Bus (V
f
)
+In
-Out
TM
VC
PC
+Out
VTM
+Out
Vout
Vin
鈥揑n
鈥揙ut
-In
K
Ro
-Out
Figure 1
鈥?The P048F048T24AL PRM is used with any 048 input
series VTM to provide a regulated and isolated output.
In operation, V鈥 Chips can operate safely at high temperatures.
Use caution when connecting test probes and interface lines to
avoid touching hot surfaces. Be sure the power is off before
making or breaking connections to the Evaluation Board.
* Refer to Vicor document 鈥淒C-DC Converter Chip Set Overview鈥?/div>
for a description of FPA and an overview of its essential elements.
Vicor Corporation Tel: 800-735-6200 vicorpower.com
V鈥 Chip Evaluation Board
Rev. 1.1
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