9. EMC Considerations

Design Guide & Applications Manual

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

Differential-Mode Noise Filter. Differential-mode conducted noise current is the component of current, at the input power pin, which is opposite in direction or phase with respect to the other input power pin.

All Vicor converters have an internal differential-mode LC filter which, in conjunction with a small external capacitor

C1 (minimum value in µF) = 400 / Vin,

reduces differential-mode conducted noise. The external capacitor should be placed close to the module to reduce loop cross-sectional area.

Care should be taken to reduce the loop cross-sectional area of differential-mode current flowing between the source and C1. Since differential-mode input current is by definition opposite in phase, twisting the input leads causes noise cancellation. PCB power planes can reduce radiated noise if the traces are on opposite sides of the PCB directly over one another. If differential mode inductance is used, it may be common to one or more modules.

Differential-Mode Filter

Typical Vicor Module (VI-230-CV) 48 V Input, 5 V Output

 

C2a

 

 

C3a

 

 

 

L1

+IN

+OUT

C1 = 100 µF

 

 

 

 

 

 

 

 

C2a – C2b = 4,700 pF

(Vicor Part # 01000)

 

 

 

GATE

+S

Conditions

C4

C1

IN

TRIM

C3a – C3b = 0.01 µF

(Vicor Part # 04872)

Light Load = 3 A

 

 

GATE

–S

C4 = 2.2 µF

 

 

 

OUT

L1 = 20 µH

 

Nominal Load = 15 A

 

 

–IN

–OUT

 

 

L2

 

Full Load = 30 A

 

 

 

L2 = 20 µH

 

 

C2b

 

 

C3b

 

 

 

 

 

Conducted Noise vs. Load

 

 

 

3 Amp Load

 

 

15 Amp Load

 

30 Amp Load

Figure 9–5— Conducted noise, differential-mode filtering

vicorpower.com

800-735-6200

Applications Engineering 1-800-927-9474

Rev. 2.1

Page 22 of 88

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EMC VI-J00, VI-200 specifications Conducted noise, differential-mode filtering

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.

In contrast, the EMC VI-200 offers a more robust and scalable solution for larger enterprises requiring extensive data throughput and storage capacity. It features high-performance storage capabilities with support for NVMe technology, which significantly enhances data access speeds. The VI-200 is built with a modular architecture, allowing organizations to scale their systems as needed, adding capacity or performance without disrupting ongoing operations.

Both models incorporate advanced data protection technologies, including snapshot capabilities and remote replication, ensuring that data is secure and recoverable in the event of a failure. Additionally, they support advanced analytics and management tools that provide real-time insights into storage performance and utilization, leading to improved resource allocation.

Interoperability is another key characteristic of both the VI-J00 and VI-200. These systems are designed to work seamlessly with a wide range of applications and platforms, providing flexibility and choice for IT administrators. Their compatibility with various virtualization platforms further enhances their appeal, allowing businesses to create dynamic, efficient storage environments.

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.