Datasheet > QPI-4-EVAL1

QPI-4-EVAL1

更新时间： 2024-11-08 09:51:15

品牌	Logo	应用领域
VICOR		/
页数	文件大小	规格书
2页	127K
描述
Evaluation Board for Active EMI Filters

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中文翻译

获取价格

数据手册

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QPI-4-EVAL1 数据手册

QPI-X-EVAL1

QuietPower^™

Evaluation Board for Active EMI Filters

The QPI-X-EVAL1 is an easy to use evaluation

Figure 3 shows the component locations on the EVAL

board for testing the QPI family of active EMI

filters. The evaluation board includes a mounted

QPI, capacitors, optional RY resistor and screw

terminals for electrical connections.

board PCB.

Filter performance in the application is highly

dependent on several factors and cannot be

extrapolated from insertion loss curves alone. Final

noise performance is a complex function of filter

elements, equipment grounding and noise source

impedances, which vary in magnitude and phase over

the frequency spectrum of interest.

When using the evaluation board, pay special

attention to wiring and grounding. Wires should be

kept as short as possible and positioned to minimize

radiated pick up around the QPI. Refer to Figure 1

below and the QPI-AN1 application note for the

proper measurement set up.

Designers should be aware that to select and qualify

an EMI filter for conducted noise, they must test the

filter in their product under the set up and conditions

specified in the applicable EMI standards. Measurements

should be made in consultation with in-house

Figure 2 shows the schematic of the QPI-X-EVAL1.

Note that resistor RY is included with the evaluation

board for use with non-resonant mode converters. To

ensure the best results, make sure that the QPI shield

connection is as close as possible to the common point

of the bypass Y-capacitors and shield plane under the

converters on the system board.

compliance testing or an independent EMI test facility.

Check www.picorpower.com for data sheets,

application notes and additional product information.

VIN+

VOUT+

BUS+

LISN

QPI+

CIN

BUS

SUPPLY

QPI

CONVERTER

VIN-

VOUT-

BUS-

QPI-

LISN

Optional GND

Connection

LISN Ground Plane

Figure 1 - Spectrum Analyzer Test Setup for the evaluation board (QPI and Converter 5mm above LISN Ground Plane)

Picor Corporation • www.picorpower.com

QPI-X-EVAL1 Data Sheet Rev. 1.2 Page 1 of 2

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