EMC VI-200 Manuale Utente Scaricare il pdf (Pagina 9)

Design Guide & Applications Manual

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

vicorpower.com 800-735-6200 Applications Engineering 1-800-927-9474 Rev. 2.1

Page 26 of 88

9. EMC Considerations

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

3 Amp Load 15 Amp Load 30 Amp Load

+IN

–IN

+OUT

–OUT

GATE

OUT

TRIM

–S

C1 = 100 µF

– C2

= 4,700 pF (Vicor Part # 01000)

– C3

= 0.01 µF (Vicor Part # 04872)

C4 = 270 µF (Tant.)

Conditions

Light Load = 3 A

Nominal Load = 15 A

Full Load = 30 A

Figure 9–11 — Output noise, additional output capacitance

Output Ripple vs. Load

Addition of Output Capacitor

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

1 2 3 4 5 6 7 8 9 10 11

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EMC VI-200 Manuale Utente Pagina 9