Design Guide & Applications Manual

9. EMC Considerations

For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies

 

Differential and Common-Mode Filter with More than One Module. No special precautions are needed when using two or more modules. The filter required will have the same characteristics as a single module filter,

however the wire size on the magnetics will need to reflect the increased input current. Shown below is the input conducted noise for two modules sharing a common input source.

Differential and Common-Mode Filter with More than One Module

48 V Inputs, 5 V Outputs (Two Vicor VI-230-CV Modules)

 

 

 

C2a

L2

L1

 

+IN

 

 

 

 

 

 

GATE

C4

C1a

 

IN

 

GATE

 

 

 

OUT

 

 

 

–IN

 

 

 

C2b

 

 

 

C2c

 

 

 

+IN

 

 

 

GATE

 

 

C1b

IN

 

 

GATE

 

 

 

OUT

 

 

 

–IN

C3a

+OUT +S

T –S –OUT

C3b

C3c

+OUT +S

T –S –OUT

Load 1

Load 2

Three common-mode chokes are offered as standard accessories.

Part

Inductance

Maximum

Resistance

Number

Each Winding

DC Current

Each Winding

31743

1,000 µH

12 Amperes

6.5 mΩ

31742

3,000 µH

7 Amperes

18 mΩ

31943

2,163 µH

1 Ampere

42 mΩ

 

 

 

 

NOTE: Common-mode filters may be common to one or more modules, but only one should be used with modules interconnected via GATE IN’s or, GATE OUT to GATE IN. As an example, Driver / Booster arrays or Drivers with GATE IN’s tied together to provide a common disable function.

 

 

C2d

 

C3d

C1a – C1b =

47 μF

 

Conditions

C2a – C2d =

4,700 pF

(Vicor Part # 01000)

C3a – C3d =

0.01 μF

(Vicor Part # 04872)

Light Load = 3 A

C4

=

2.2 μF

 

Nominal Load = 15 A

L1

=

3,000 μH

(Vicor Part # 31742)

Full Load = 30 A

L2

=

20 μH

 

 

Conducted Noise vs. Load

3 Amp / 3 Amp Load

 

3 Amp / 6 Amp Load

 

3 Amp / 30 Amp Load

 

 

 

 

 

15 Amp / 15 Amp Load

 

15 Amp / 30 Amp Load

 

30 Amp / 30 Amp Load

 

 

 

 

 

Figure 9–4— Conducted noise, multiple zero-current-switching converters

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Applications Engineering 1-800-927-9474

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EMC VI-200, VI-J00 specifications Conducted noise, multiple zero-current-switching converters

VI-J00, VI-200 specifications

EMC VI-J00 and VI-200 are advanced storage solutions designed to meet the diverse needs of modern enterprises. As part of the EMC product line, these models offer features intended to enhance data management, security, and scalability, making them suitable for various applications, from small businesses to large-scale data centers.

The EMC VI-J00 is renowned for its compact design and energy efficiency. It is particularly well-suited for edge computing applications, where space is limited and power consumption is a critical concern. This model leverages cutting-edge data reduction technologies such as deduplication and compression, allowing organizations to maximize storage efficiency while minimizing costs. The VI-J00 also supports multiple access protocols including NAS and block, enabling seamless integration into existing IT environments.

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In summary, EMC VI-J00 and VI-200 are powerful storage solutions tailored to meet the demands of today's data-centric organizations. With features focused on efficiency, scalability, and data protection, they stand out as reliable options for businesses looking to optimize their data storage strategies while leveraging the latest technologies.