user Guide VI BRICK® AC Front End Evaluation Board November 2012 ContentsPage Features1 Introduction1 Set Up 3 Bill of Materials 5 Features > Oscilloscope probe jack for output voltage and ripple measurements > Simple to use > Ring lug, screw terminal, and solder connection options > Replaceable fuse (5A, 216 Littelfuse recommended) Recommended6 Hardware Thermals6 Ordering Info IMPORTANT NOTICE: Please read this user guide before operating evaluation board. 6 Introduction The VI BRICK AC Front End Evaluation Board offers a convenient means to evaluate the performance of Vicor’s VI BRICK AC Front End module and has been optimized for user convenience. Refer to the table below for operating conditions and limits. This product contains an input line filter. It is important to remember the response of the AC line filter is dependent upon the wiring connected to the evaluation board. Care should be exercised to minimize stray source impedances in order to fully exercise the features of the converter. vicorpower.com Applications Engineering: 800 735.6200 Rev 1.2 Page 1 Figure 1 VI BRICK AC Front End Evaluation Board layout and dimensional drawing, component side. (Click on drawing to view larger.) Basic Specifications and Operating Limits Please use the following table for operating limits: Table 1 Operating Limits Description SpecificationNotes Input Range Output voltage Output Power Operating temperature Output capacitance 85 – 264 Vac Universal input 48 Vdc Partially Regulated, SELV 330 W O ver entire input range -40 to 100 °C Case temperature 6,000 to 12,000μF 63V rating Please refer to Figure 1 for locations of the input and output connections as viewed from the component side. Wires may be soldered directly to the pads instead of ring lugs if desired to minimize circuit impedances. vicorpower.com Applications Engineering: 800 735.6200 Rev 1.2 Page 2 DANGER! HIGH VOLTAGE! DANGER! HOT SURFACE! The VI BRICK AC Front End Evaluation Board contains exposed hazardous voltages. These voltages are within the area marked by the hashed line on the board. The VI BRICK AC Front End Evaluation Board may be operated at surface temperatures which may pose a thermal hazard to the operator. Because of the thermal and voltage hazards, be careful not to touch any exposed surface unless the power is disconnected and the evaluation board has been given sufficient time to cool. The evaluation board is not intended for use in end item equipment. Set Up The Customer Evaluation Board should be set up as follows: Note: Care should be taken to avoid reversing polarities if connecting to the opposite (solder) side of the board. AC Input Connections (J01) DANGER! HIGH VOLTAGE! J01, the screw terminal connector, is for connection of AC input to the AC-DC converter evaluation board. The interconnect leads should be appropriate for the current and voltage supplied to the board. For single phase power, connect LINE to the pin marked L, NEUTRAL to the pin marked N and earth ground to the pin marked EARTH. Corresponding wires in an IEC cable are brown, blue, and yellow with a green stripe. The board can be used with three phase power. Connect LINE1 to L and LINE2 to N. Earth ground should still be connected to the EARTH terminal of J1. +OUT, –OUT There are several connections available on the VI BRICK AC Front End Evaluation Board. Table 1 lists the available connectors and their current rating. Do not exceed the rating of the connector or the module. Table 2 Output Connector Ratings Recommended Connector Rating Connection J02 10 A Hold-up capacitor Mating PRM and BCM eval J03 12 A (3 A/contact) boards Ring Lugs 100 A General Purpose H03 (+OUT) & H07 (-OUT) 12 A Hold-up capacitor Output bulk (electrolytic) capacitance must be attached across the output of the VI BRICK AC Front End Evaluation Board. Refer to table 1 from previous page for the appropriate range of output capacitance. vicorpower.com Applications Engineering: 800 735.6200 Rev 1.2 Page 3 The load should be connected to +OUT and –OUT terminals of the evaluation board with short leads of suitable gauge to carry the output current and minimize losses. A sufficient number of terminal connections should be used to ensure that no terminal sees more than its maximum rated current. The evaluation board can be connected directly to the application for which the module is intended. However the interconnect impedances between the evaluation board and the application can greatly affect the transient response. For applications where transient response is critical, the user should consider mounting the VI BRICK AC Front End module directly to the target application PCB. Test points TP12 (–OUT) and TP07 (+OUT) can be used to monitor the output and are located on the PCB adjacent to the output terminals of the AC Front End module. Earth Connections There are several earth connections available on the board. Earth must be connected via a low impedance connection in order for the internal line filter to function. These earth connections also provide a safety ground for the baseplate of the module. Earth may optionally be connected to either of the VI BRICK AC Front End outputs in order to provide a positive or negative voltage rail with respect to earth. Output Voltage Measurement Jack (J12) This connector is provided to make accurate measurements of the output ripple voltage of the VI BRICK AC Front End. Many types of scope probes may be directly connected to this point if the probe is equipped with a removable plastic sheath. To avoid creating ground loops when making measurements of the output or input voltage, these measurements should be made separately. Figure 2 VI BRICK AC Front End Output capacitor (C29) can be added to reduce switching frequency voltage ripple at the probe. (Click on drawing to view larger.) vicorpower.com Applications Engineering: 800 735.6200 Rev 1.2 Page 4 Table 3 Bill of Materials Ref. Description Desc. Digi-Key Digi-Key Future Future Manufacturer Part # Manufacturer Part # CAP X7R 2200pF C01 Murata 490-3480-2-NDMurata GA355QR7GF222KW01L 10% 250V 2220 CAPY X7R 4700pF C12 Murata 490-3482-2-NDMurata GA355DR7GF472KW01L 10% 250V 2220 C13 C29 C30 C31 NOT APPLIED NOT APPLIED NOT APPLIED NOT APPLIED NOT APPLIED C32 C33 C34 C35 C36 CAP X7R .1uF C37 Murata 490-1673-2-NDMurata GRM21BR71E104KA01L 10% 25V 0805 C38 CAP ALUM 100UF C39 Nichicon UVY1J101MPD-NDNichicon UVY1J101MPD 63V 20% RADIAL FUSE HOLDER, F01 Wickmann F4546-NDSchurter 31.8225 SMD, 5x20 H03 & CAP ALEL 6800uF Kemet 493-1135-NDNichicon UVZ1J682MRD H07 20% 63V 25X50 CON 3CKT TERM J01 No Stock No Stock Weco 140-A-126-SMD/03 BLK SMD CON 2 CKT TERM J02 No Stock No Stock Weco 140-A-126-SMD/02 BLK SMD CONN 10POS Sullins Sullins J03 90DEG THRUHOLE S5519-ND PPTC052LJBN-RC Electronics Electronics FEMALE 0.1SPC CONN 5POS J05 SINGLE ROW Molex WM1893-ND TE Connectivity 1445057-5 RIGHT ANGLE RES 0 OHM 3/4W JP02 Vishay Dale 541-0.0WTR-ND Vishay Dale CRCW20100000Z0EF 5% 2010 JP03 NOT APPLIED NOT APPLIED NOT APPLIED NOT APPLIED NOT APPLIED IND 15.0uH L01 Stocked by Mouser, part#: MLF2012C150KT 10% 5mA 0805 IND COM MODE L05 Stocked by Vicor, part#: 37052-601 600uH 30% 10A PS01 Model Specific Vicor Model Specific Vicor Model Specific RES 6.81 OHM R01 Vishay Dale 541-6.81CCTRND Vishay Dale CRCW08056R81FKEA 1/8W 1% 0805 RES 2.2 OHM R09 Vishay Dale 541-2.20FFTRND Vishay Dale CRCW12062R20FKEA 1/4W 1% 1206 R10 NOT APPLIED NOT APPLIED NOT APPLIED NOT APPLIED NOT APPLIED VAR MOV, 300V TMOV20RP30 Z01 10KA 20mm Littelfuse LittelfuseTMOV20RP300E 0EL2T7-ND DIA RADIAL vicorpower.com Applications Engineering: 800 735.6200 Rev 1.2 Page 5 Input Current Measurement A current probe can be passed around either input lead connected to the VI BRICK AC Front End Evaluation Board. Note that an input capacitor on the evaluation board is downstream of this measurement point. Enable (EN) DANGER! HIGH VOLTAGE! The EN pin can be used to disable the VI BRICK AC Front End module. Connecting EN to the –IN-PFM pin will disable the module. This will also clear any latching output OVP fault if one has occurred. Note that the EN pin is referenced to the primary (hazardous voltage) side of the converter. Warning: The EN Pin, or the –IN PFM Pin must not be connected to line or output of the VIBRICK AC Front End. Efficiency Measurement As the VI BRICK AC Front End module can deliver and consume large currents, the effect of the PCB must be considered when making an efficiency measurement. Be certain to accurately measure the voltage using test points TP08 (LINE1) , TP14 (LINE2/NEUTRAL), TP18 (–OUT), and TP01 (+OUT). Using these test points will more closely represent the efficiency of the VI BRICK AC Front End module. Hardware The hardware kit provided with the evaluation board includes the following: > (10) #10 internal tooth lock washers > (10) #10-32 hex nuts > (10) #10 external tooth lock washers > (4) F-F standoffs > (10) #10-32 screws > (8) M3 x 5 mm screws > (4) Rubber feet Ring lugs are also recommended for making output connections. Thermals For most lab environments a fan blowing across the evaluation board is recommended. See VI BRICK Thermal Management Application Note at: vicorpower.com/documents/application_notes/AN_Vibrick%20%20thermManage.pdf or contact Vicor Applications Engineering for assistance (800) 927-9474. Ordering Information The evaluation board is specified by replacing the “–00” suffix with “–CB” on the VI BRICK AC Front End model number (FE175D480C033FP-CB). The Power Behind Performance 12/2012 vicorpower.com Applications Engineering: 800 735.6200 Rev 1.2 Page 6