Vicor PFC MicroS Power Factor Corrected AC-DC Switcher - Manual (Page 10)

Pg. 10 Vicor 800-735-6200 Westcor Division 408-522-5280 Applications Engineering 800-927-9474 03-000049 rev A
PFC MicroS Design Guide
Interface Connections
Chassis Input Power Terminals (MBJI)
Input AC power is applied through connector MBJI using Molex mating connector 39-01-4051. Use 16 AWG wire
with Molex Socket Pin 39-00-0090 and Crimp Tool 11-01-0199.
A fault clearing device, such as a fuse or circuit breaker, with a maximum 10A rating at the power supply input is
required for safety agency compliance. It should be sized to handle the start-up inrush current of 8.5A peak at 115 Vac
and 17A peak at 230 Vac.
Output Power Connections
There are two types of output power terminals available in the PFC MicroS. For connections using full or half size
modules, outputs are terminated at 10-32 plated steel bolts. The positive polarity of the output is the right bolt when
viewed from the output end. For connections using quarter size modules, outputs are terminated using a single 16 pin
Molex connector. Each power output is isolated, so outputs of positive or negative polarity can be configured through
proper selection of the output reference terminal.
In order to minimize parasitic cable inductance and reduce EMI, the output power cables should be routed in close
proximity to one another, and large current loops should be avoided. To avoid excessive voltage drop, do not undersize
power cables, especially for high current outputs. Do not bundle input AC wires with the output wires because this can
couple output noise into the input wires which can increase EMI. Excessive cable inductance coupled with large capac-
itive loading can introduce instability in switching power supplies. This problem can be avoided with proper system
design. Consult Vicor’s Applications Engineering Department for assistance with applications that use long cable
lengths and excessive load capacitance.
Figure 2. Input Power Terminal MBJI
PIN 1
CBJ3-12 PIN
MBJ1 (5 PIN)
L1
L2/N
GND
Not Connected
Not Connected
MATING CONNECTOR: (WESTCOR KIT P/N: 19-130044)
HOUSING: MOLEX (39-01-4051)
SOCKET CRIMP 16 AWG: MOLEX (39-00-0090)
CRIMP TOOL: MOLEX (11-01-0199)
MBJ1 A/C INPUT
PIN DESCRIPTION
S1J1-1 +V OUT M3
S1J1-2 -V OUT M3
S1J1-3 TRIM M3
S1J1-4 +V OUT M2
S1J1-5 -V OUT M2
S1J1-6 TRIM M2
S1J1-7 +V OUT M1
S1J1-8 -V OUT M1
S1J1 (16 PIN, TRIPLE MICRO MODULES)
PIN DESCRIPTION
31J1-9 +V OUT M3
S1J1-10 -V OUT M3
S1J1-11 N/C
S1J1-12 +V OUT M2
S1J1-13 -V OUT M2
S1J1-14 TRIM M1
S1J1-15 +V OUT M1
S1J1-16 -V OUT M1
TRIPLE OUTPUT- Quarter
size modules used
DUAL OUTPUT-Half size SINGLE OUTPUT - Full
size module used
S1J1 REMOTE SENSE/OUTPUT CONNECTORS
MATING CONNECTORS: (WESTCOR KIT P/N: 19-130044)
16 PIN HOUSING: MOLEX (39-01-2160)
SOCKET CRIMP 18-24 AWG: MOLEX (39-00-0039)
CRIMP TOOL: MOLEX (11-01-0197)
M1
S1J1
M1
M2
M2
M1
M1
10-32 STUDS
S1J2
-
+
128.52 5.06
47.29 1.86
A3J1
+
-
-
+
S1J3
8 7 6 5 4 3 2 1
16 15 14 13 12 11 10 9
- REMOTE SENSE 3
2
1
+ REMOTE SENSE
Trim Pin
S1J2 REMOTE SENSE/TRIM PIN ACCESS CONNECTOR
MATING CONNECTOR: (WESTCOR KIT P/N: 19-130044)
HOUSING: MOLEX (50-57-9403)
SOCKET CRIMP 24-30 AWG: MOLEX (16-02-0103)
CRIMP TOOL: MOLEX (11-01-0208)
S1J1/J3 REMOTE SENSE/TRIM PIN ACCESS CONNECTOR
MATING CONNECTOR: (WESTCOR KIT P/N: 19-130044)
HOUSING: MOLEX (50-57-9403)
SOCKET CRIMP 24-30 AWG: MOLEX (16-02-0103)
CRIMP TOOL: MOLEX (11-01-0208)
Figure 3. Output Power Terminals