Vicor Westcor PFC MegaPAC Power Factor Corrected AC-DC Switchers - Manual (Page 7)

UG:105 vicorpower.com Applications Engineering: 800 927.9474 Page 7
JuniorPAC
The JuniorPAC consists of a VI-J00 DC to DC converter that converts the high voltage
bus to the desired regulated output voltage. JuniorPACs can provide up to 100 Watts of
output power and are fused with a single PC-Tron, DC-rated, fast-acting fuse. A passive
LC filter is used to reduce output ripple/noise down to 1% typical, and 2% maximum
peak-to-peak from 10% to 100% of rated load. An optional DC Power Good signal or
output voltage Trim potentiometer can be specified. The JuniorPAC contains output
overcurrent protection, which recovers automatically when the overcurrent condition is
removed. Overvoltage protection and overtemperature limiting are not available.
DualPAC
This output assembly consists of two VI-J00 DC to DC converters that convert the high
voltage bus to the desired regulated output voltages as noted above. The outputs are
electrically isolated. For detailed pin out description, refer to page 10.
RAMPAC
This output assembly consists of a VI-J00 DC to DC converter with a Ripple Attenuator
Module (RAM) and is designed for applications requiring low output ripple/noise. The
RAMPAC can attenuate the ripple/noise down to 10 mV peak-to-peak over a 20 MHz
bandwidth from 10% to 100% of rated load of the converter.
Outputs from 5 V to 50 V are available.
BatPAC
The BatPAC output assembly consists of a VI-200 BatMod current source that converts
the high voltage bus to the desired regulated output voltage. The converter is fused with
a PC-Tron, DC-rated, fast-acting fuse. The BatPAC is a 200 Watts programmable current
source that can be configured as a battery charger. Maximum current and voltage
settings are controlled using potentiometers that come as a standard feature, or through
Trim pin access as an option. BatPACs are available for 12 V, 24 V and 48 V
battery systems.
FINPAC
The FinPAC output assembly consists of a Maxi DC to DC converter that converts the
unregulated high voltage bus to the desired regulated output voltage. Each Maxi module
can provide up to 600 Watts of output power. Each FinPAC occupies 2 slots because
it has an extra large heatsink attached to dissipate the heat generated by this more
powerful Maxi converter. Currently, the FinPAC is ONLY used in the high power (MX)
chassis. It cannot be used in any other member of the MegaPAC Family.
Contact Westcor for future updates.
FlexPAC
The FlexPAC output assembly consists of from 2 to 4 discrete outputs that convert the
high voltage bus to the desired output voltage. Each FlexPAC output can be manually
trimmed from 2 V to 25 V and supports up to 5 amps with a maximum output power
of 50 W per output. All outputs maintain less than 50 mV noise over the entire output
range. All outputs support local sense only. For electrical trim options and specific
output sequencing contact the factory.
+
_ VI-J00
Remote Sense
Output Adjust
- Vout
+ Vout
DC OK (Power Good)
Remote Sense
Output #2 Adjust
Output #2
Output #1
Remote Sense
Output #1 Adjust
VI-J00 VI-J00
M2 M1
M1
M2
+
_ VI-J00 RAM
Remote Sense
Output Adjust
- Vout
+ Vout
DC OK (Power Good)
+ Vout
VI-200/BatMOD
- Vout
Remote Interface
Voltage Limit Adjust
Current Limit Adjust
+
_
+
_
Remote Sense
Maxi
Output Adjust
- Vout
+ Vout
DC OK (Power Good)
M-1 STATUS
M-1 VOLTAGE ADJUSTMENT
M-4 STATUS
M-3 STATUS
M-2 VOLTAGE ADJUSTMENT
M-2 STATUS
M-4 VOLTAGE ADJUSTMENT
M-3 VOLTAGE ADJUSTMENT
CONNECTOR J1
JuniorPAC
DualPAC
RAMPAC
BatPAC
ModuPAC
FlexPAC