QPI-2L datasheet(5/8 Pages) VICOR

Part #	QPI-2L

Description	12 Amp Active EMI Filter for 24V DC Bus

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Manufacturer	VICOR [Vicor Corporation]

Direct Link	http://www.vicorpower.com

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Picor Corporation • www.picorpower.com

QPI-2L Data Sheet Rev. 2.0 Page 5 of 8

Figure 7 – Schematic for supporting multiple DC-DC converters. Note only a single RY is required. Use values recommended by converter

manufacturer for CIN and Y-capacitors C1-C8.

BUS

SUPPLY

VIN+VOUT+

VIN-VOUT-

SHIELD

CONVERTER

Optional Connection

C2

C3

C4

RY

PCB plane under converter

CIN

1

BUS+

QPI+

BUS-

QPI-

QPI

CB

47

µF

C1

VIN+VOUT+

VIN-VOUT-

SHIELD

CONVERTER

C6

C7

C8

PCB plane under converter

CIN2

C5

Additional Converters

10

Ω, 1/4 W

Figure 8 – Series connection of QPI for higher attenuation.

BUS+

QPI+

BUS-

QPI-

BUS

SUPPLY

QPI

VIN+VOUT+

VIN-VOUT-

SHIELD

CONVERTER

Optional Connection

C2

C3

C4

RY

PCB plane under converter

CIN

BUS+

QPI+

BUS-

QPI-

QPI

CB

47 µF

C1

10

Ω, 1/4 W

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