Picor QuietPower QPI active EMI input filters utilize a proprietary active filtering topology for superior performance, significantly reducing size, volume, and weight compared to competitors. The filters offer effective attenuation in the 150 kHz to 30 MHz range, optimized for EN55022 class B compliance, with new models and higher current versions in development. Additionally, Picor provides a platform for evaluating EMI performance with various DC-DC converters.

1. Picor QuietPower®
QPI® Active EMI Input Filters
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2. Picor QuietPower
Picor QuietPower®
Active Output Ripple Attenuator
AC-DC
ORing
Isolated
Input Active Output Active
DC-DC Load
EMI Filter Ripple Attenuator
Converter
48V or 24V Active
Battery ORing
Active
DC-DC
ORing
Picor QuietPower®
Input Active EMI Filter
Industry leading form factor
density, superior attenuation Active
performance, and high efficiency DC-DC
ORing
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3. Picor QuietPower: QPI Active EMI Input Filters
› Proprietary active filtering topology for
superior attenuation performance, high
efficiency, and industry leading form factor
› Provides conducted common-mode(CM) and
differential-mode (DM) attenuation from
150 kHz to 30 MHz (CISPR22 range)
› Optimized for applications that require
EN55022 Class B limits
› 24 V & 48 V input voltages
› New QPI-21 to be released in Q4’2011
› QPI-21 adds higher freq attenuation to
QPI-6 with options for external
capacitance
› Higher current (30 A, 40 A…) versions
in development
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4. Picor QuietPower: Space, Volume & Weight Savings
› Picor filters are:
– <50% the size
– <20% the volume area
– <17% the weight
versus competitive modular solutions QPI-6, 14 A Filter: 1.0 x 1.0 x 0.2”
Weight: 5 grams
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5. Picor QuietPower: QPI Carrier for DC-DC Converters
› An easy platform to check EMI performance with a broad range of industry-standard
converters – available now through Picor marketing
› A one-filter-fits-all approach
› Picor can run customized EMI plots for customers with any DOSA-compatible
DC-DC converter
* Example using Synqor half brick
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