EMC VI-J00, VI-200 specifications Output noise, additional output capacitance

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9. EMC Considerations

Design Guide & Applications Manual

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

Addition of Output Capacitor

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

 

C2a

 

C3a

 

+IN

+OUT

 

 

GATE

+S

 

C1

IN

TRIM

C4

GATE

 

–S

 

 

OUT

 

 

–IN

–OUT

 

 

C2b

 

C3b

C1

= 100 µF

 

Conditions

C2a – C2b = 4,700 pF

(Vicor Part # 01000)

Light Load = 3 A

C3a – C3b = 0.01 µF

(Vicor Part # 04872)

Nominal Load = 15 A

Full Load = 30 A

C4

= 270 µF (Tant.)

 

 

 

NOTE: A low ESR capacitor should be used on the output, preferably tantalum.

Output Ripple vs. Load

3 Amp Load

15 Amp Load

 

30 Amp Load

 

 

 

 

 

Figure 9–11— Output noise, additional output capacitance

vicorpower.com

800-735-6200

Applications Engineering 1-800-927-9474

Rev. 2.1

Page 26 of 88

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Contents Conducted Noise Typical Vicor Module Input, 5 V Output VI-230-CVConducted Noise vs. Load Typical Fixed Frequency Converter PWM Input, 5 V Output EMC ConsiderationsConducted input noise, with common-mode choke Typical Vicor Module VI-230-CV Input, 5 V OutputConducted noise, multiple zero-current-switching converters Conducted noise, differential-mode filtering Noise Considerations Radiated NoiseNoise coupling model Measuring Output NoiseOutput Ripple vs. Load Outputs 12 15 V Outputs 24 48 V Outputs11- Output noise, additional output capacitance 100 µF C2a C2b = 700 pF Vicor 13- Output noise, with Ripple Attenuator Module RAM RAM / MI-RAM Operation

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.

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