MM3-1 Westcor Mini MegaPAC AC-DC Switcher Chassis

The VICOR/ Westcor ConverterPAC Series Output Assemblies consist of ModuPAC, JuniorPAC, DualPAC, RamPAC, BatPAC and FinPAC which all feature overcurrent protection (OCP) and a Vicor / Westcor VI-x00 DC to DC Converter Except for BatPAC.

The ModuPAC output assembly consists of a VI-200 DC-DC converter that converts the high-voltage bus to the desired regulated output voltage. Each ModuPAC can provide up to 200W of power. Multiple ModuPACs can be paralleled in a driver-booster configuration to provide more power. ModuPACs are fused with a 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 ModuPAC contains overvoltage protection (OVP), overcurrent protection (OCP) and overtemperature limiting (OTL). The OCP has automatic recovery when the overcurrent condition is removed. The OVP and OTL are latching functions and require recycling of the AC input power to restart.

The JuniorPAC consists of a VI-J00 DC-DC converter that converts the high-voltage bus to the desired regulated output voltage. JuniorPACs can provide up to 100W 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 OEM 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.

The DualPAC output assembly consists of two VI-J00 DC-DC converters that convert the high-voltage bus to the desired regulated output voltages as noted above. The outputs are electrically isolated.

The RamPAC output assembly consists of a VI-J00 DC-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 10mV peak-to-peak over a 20MHz bandwidth from 10% to 100% of rated load of the converter. Outputs from 5V to 50V are manufactured.

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 200W 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 OEM option. BatPACs are manufactured for 12, 24 and 48V battery systems.

The FinPAC output assembly consists of a Maxi DC-DC converter that converts the unregulated high-voltage bus to the desired regulated output voltage. Each Maxi module can provide up to 600W of output power. Each FinPAC occupies two 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.