Difference between revisions of "Vicor Power Assembly"
From MCEWiki
| Line 35: | Line 35: | ||
* '''Connector''': Winchester MRA34SG. '''[[MCE Power#Connector & pinout|Pinout]]''' | * '''Connector''': Winchester MRA34SG. '''[[MCE Power#Connector & pinout|Pinout]]''' | ||
* ''Note:'' The VPA can power one 72-HP subrack, or two 48-HP subracks. Early revisions of the VPA had two output connectors. Currently, all VPAs have only one Winchester connector for power output, and a wye cable is used when powering pairs of 48-HP subracks. | * ''Note:'' The VPA can power one 72-HP subrack, or two 48-HP subracks. Early revisions of the VPA had two output connectors. Currently, all VPAs have only one Winchester connector for power output, and a wye cable is used when powering pairs of 48-HP subracks. | ||
| − | + | == Schematics == | |
| + | * Vicor Power Supply Rev C2, PCB Schematics [https://phas.ubc.ca/~mce/mcedocs/hardware/schematics/PowerSupplyVicor/ELE_C585-401_RevC2_VicorPSU_Schematics.pdf] | ||
| + | * Vicor Power Supply Rev C3, PCB Schematics [https://phas.ubc.ca/~mce/mcedocs/hardware/schematics/PowerSupplyVicor/ELE_C585-401_RevC3_VicorPSU_Schematics.pdf] | ||
| + | * Wiring [https://phas.ubc.ca/~mce/mcedocs/hardware/schematics/PowerSupplyVicor/ELE-C584-402_RevA_Wiring_Harness.pdf] | ||
== Mechanical Drawings == | == Mechanical Drawings == | ||
* Assembled Box: [http://www.phas.ubc.ca/~scuba2/sc2mce/system/power_supply_of_all_kinds/psu_Vicor/design/mech/Aluminum_Box/MEC-C585-416D_Enclosure.PDF MEC-C585-416D] | * Assembled Box: [http://www.phas.ubc.ca/~scuba2/sc2mce/system/power_supply_of_all_kinds/psu_Vicor/design/mech/Aluminum_Box/MEC-C585-416D_Enclosure.PDF MEC-C585-416D] | ||
Revision as of 22:38, 14 October 2020
Related topics:
► Hardware
The MCE can be equipped with a 24V DC-in or 48V DC-in switching supply designed for use in balloon-based experiments. This unit contains a set of Vicor DC-DC converters that are trimmed to accommodate losses from cables of up to 2-metres, so they can be located up to 2-m away from the actual MCE subrack.
Contents
Specification
- DC input
- Either:
- 24V (18-36V) - Rev. C, Issues 1, 2, 5, 6
- 48V (36-60V) - Rev. C, Issues 3, 4, 7
- 3A at 24V to power one 3-MDM MCE48 crate (6A for two)
- DC output
- Va+: 6.1 to 6.3 V
- Va−: -6.1 to -6.3 V
- Vlvd: 4.4 to 4.7 V
- Vcore: 2.9 to 3.2 V
- Note: The VPA does not provide the obsolete Vah used by rev.A and B Readout cards and rev.A through D Bias cards
- Power
- 100W
- Regulated
- Yes
- Efficiency
- 75%
- Dimensions (L x W x H)
- 24cm x 20cm x 5cm
- Weight
- < 2kg and a 1-m power cable is ~1kg
Connectors
- Input
- Writing harness: PDF
- Connector: Amphenol PTC-2A-14-5P
- Output
- Wiring harness: PDF
- Connector: Winchester MRA34SG. Pinout
- Note: The VPA can power one 72-HP subrack, or two 48-HP subracks. Early revisions of the VPA had two output connectors. Currently, all VPAs have only one Winchester connector for power output, and a wye cable is used when powering pairs of 48-HP subracks.
Schematics
- Vicor Power Supply Rev C2, PCB Schematics [1]
- Vicor Power Supply Rev C3, PCB Schematics [2]
- Wiring [3]
Mechanical Drawings
- Assembled Box: MEC-C585-416D
- Box Lid: MEC-C585-405D
- Unfolded Box: MEC-C585-404D
- Mounting Flange: MEC-C585-406B
Cooling
For Spider, the mounting/heat extraction block is bolted to a heat exchanger through which the 4He blow-off from the cryostat's vapour-cooled shield is vented.
Photos
Vicor supply attached to a subrack
Vicor supply top face with heat pipes
Vicor supply attached to a subrack
3 vicor supplies in Spider mounting bracket, connector side
3 vicor supplies in Spider mounting bracket, mounting/cooling side
