ug:501 vicorpower.com applications engineering: 800 927.9474 page 1 features n from bulk power distribution to point-of-load in two simple steps n universal ac input n multiplicity of point-of-load options n small size, low profle, easy-to-use, highly fexible important notice: please read this user guide before operating the vicor development kit. the development kit is for evaluation purposes only. compliance testing on the development kit is not permissible. introduction the vicor development kit contains a front-end (fe) chassis, a hold-up bank (hub), and a point-of-load (pol) chassis. the front end chassis has chassis mount versions of the aim in a via package and pfm in a via package that may be connected to worldwide ac mains. a hub is included to provide proper holdup for the pfm. the pol chassis has an input board and three picor cool-power zvs buck regulator evaluation boards. the input board interfaces with the front end chassis and hub to provide a 24 v or 48 v voltage rail on the pol chassis. the included picor regulators provide 3.3 v, 5 v, and 12 v outputs. please visit www.vicorpower.com for datasheets and more information on the individual products used in the development kit. part numbers can be found in the bill of materials on page 5. development kit user guide user guide | ug:501 mike degaetano applications engineering november 2015 contents page features 1 introduction 1 system overview 2 front-end (fe) chassis 2 hold-up bank (hub) 3 point-of-load (pol) 3 chassis set-up instructions 3 bill of materials 5
ug:501 vicorpower.com applications engineering: 800 927.9474 page 2 danger! high voltage! danger! hot surface! the development kit contains exposed hazardous voltages on the front-end chassis. the front-end chassis may be operating at surface temperatures which may pose a thermal hazard to the operator. please use caution not to touch the front-end chassis unless the power is disconnected and the front-end chassis has been given sufcient time to cool. important notice: ac input fusing the vicor development kit is meant for bench evaluation purposes only. a power supply with an adjustable current limit must be used when powering the development kit. although a 7a input fuse is installed in the ac cord adapter, this fuse does not meet safety approvals outlined for the aim and pfm. it is the users responsibility to select proper fusing at the system level to meet the desired application requirements. please refer to the section titled input fuse selection on page 16 in the pfm data sheet for guidelines on proper fuse selection. system overview front-end (fe) chassis vicor aim and pfm in a via package chassis mount modules are mounted on the front-end chassis of the development kit. the aim interfaces directly with worldwide ac mains and provides a rectifed ac input for the pfm. the aim combines a bridge rectifer, emi flter, and surge protection circuitry in an easy to use via plastic housing. the pfm in a via package is a 400 w power factor corrected ac-dc converter operating from a rectifed universal ac input which delivers an isolated and regulated safety extra-low voltage (selv) 24 v or 48 v (model dependent) secondary output. these modules are mounted on the front end chassis of the development kit to showcase their efcient, simple, and cost efective ac-dc solution compliant to iec 61000-3-2 class b emc standard. the metallic stand acts as a heat sink for the aim and pfm. please use caution not to touch the front end chassis unless the power is disconnected and the front end chassis has been given sufcient time to cool. figure 1. front-end chassis
ug:501 vicorpower.com applications engineering: 800 927.9474 page 3 hold-up bank (hub) the pfm uses secondary-side energy storage to maintain output hold up through line dropouts and brownouts. a hold-up capacitor bank is included in the kit to achieve the required hold up functionality. moreover, the hub provides a viable path for the second harmonic due to the pfm power factor correction function. point-of-load (pol) chassis point-of-load evaluation boards are on mounted on the pol chassis and have 3.3 v, 5 v, and 12 v outputs. the input board, on the lef side of the pol chassis, interfaces with the front-end chassis and hub using the three black right angle connectors. the pol chassis showcases vicors high power density, fexible, and high-efciency point-of-load oferings. a communications port is available on the input board which can be connected to the via module mounted on the front-end chassis. note: this feature will be available in the future. i 2 c communications will be available in the future for v out margining, fault reporting, and en pin polarity for the picor converters. set-up instructions figure 2. pol chassis figure 3. front-end chassis set up
ug:501 vicorpower.com applications engineering: 800 927.9474 page 4 1. ensure the evaluation boards on the pol chassis are securely plugged into the white plastic board-to-board edge connectors and that all nuts on the evaluation boards are screwed down. the toggle switches on the evaluation boards control the enable for each pol converter. note: any load connected to the pol converters should be off or disabled until the front-end chassis has been powered on. 2. connect the red and black hub cable to one of the black right angle connectors on the input board of the pol chassis. input board is labeled 2 in figure 4. 3. remove black plastic cable retainer on the front-end chassis, labeled 8 in figure 3, and the plastic insert that is screwed down on the aim input. the plastic insert can be discarded. 4. insert provided ac cord into the cord retainer. the ac cord should be fed through the retainer to the location where the black insulation ends and the line, neutral, and ground wires are exposed. screw retainer back to the front-end chassis and screw down the ground wire ring lug using the screw hole below the retainer as seen in figure 3. install the line/black wire to the top terminal of the aim and install the neutral/white wire to the bottom terminal of the aim. 5. ensure all screws are secure on the front-end chassis. 6. plug in the red and black front-end chassis output cable, labeled 11 in figure 3, to one of the black right angle connectors on the input board of the pol chassis. 7. connect the outputs of the pcbs on the pol chassis to the desired load(s) via the large screw-down output connectors. test points are available near the top of each pol pcb to observe the output voltage from the front-end chassis, and test points between the output connectors are available to observe the output voltage from the pol converter. 8. connect the ac cord to a bench power supply. 9. once power has been applied to the front-end chassis, the load(s) connected to pol chassis can be enabled. figure 4. pol chassis setup
rev 1.1 12/15 vicorpower.com applications engineering: 800 927.9474 page 5 bill of materials description manufacturer manufacturer part number m3.5 x 14 sstl ph phillips screw fastenal 0145078 m3.5x8 sstl ph phillips screw, black fastenal 0145082 clamp .375 pa66 black .250 bundle dia hellermanntyton t3d02500m4 clamp .375 pa66 black .375 bundle dia hellermanntyton t3d03750m4 ac line cord kit quail electronics 2573.048s universal ac adapter to uk quail electronics 0522.b universal ac adapter to euro schuko quail electronics 0521.b interconnect to pol assembly vicor 42982 tim pad, via, 4414pfm vicor 43151 tim pad, via, 1714 vicor 43150 m4x12 sstl hex head cap screw mcmaster-carr 91287a113 spacer, 8 mm od, 4.2 mm id, 2.5 mm ht vicor 42603 m4 sstl thin hex nut mcmaster-carr 90710a035 10 position open edge board to board connector avx 9159010061916 table 1. hardware bill of materials common to all development kits development kit part number description front-end / pol chassis part number via package/pol converter or hub part number DKIT-AC-24-POL-00 front end chassis pfm4414eb6m24d0t00 aim1714vb6mc7d5t00 pfm4414vb6m24d0t00 hub30-24 pol chassis pi33-24-3-5-12-00 pi3301-00-eval2 pi3302-00-eval2 pi3303-00-eval2 dkit-ac-48-pol-00 front end chassis pfm4414eb6m48d0t00 aim1714vb6mc7d5t00 pfm4414vb6m48d0t00 hub13-48 pol chassis pi35-48-3-5-12-00 pi3543-00-eval2 pi3545-00-eval2 pi3546-00-eval2 table 2. development kit bill of materials the power behind performance
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