VI-BAMD VICOR Corporation, VI-BAMD Datasheet - Page 3

• Manufacturer Part Number: VI-BAMD
• Description: Harmonic Attenuator Modules
• Manufacturer: VICOR Corporation

12
VI-HAM Protection Features
(continued)
Inrush Current Limit
The HAM contains inrush current protection
in the form of a PTC and a shunt device. The
same PTC is used for overcurrent protection
on the output.
Input Transient Overvoltage Surge Protection
This function is included in all HAM
compatible filters. If any other filter is used
this function must be provided externally,
typically by a transient suppressor.
All VI-HAM configurations must be
preceded by an appropriately rated fast-blow
3AG fuse ahead of the line filter. This fuse
would be a 10A for a single VI-HAM
connected to line. For fusing information on
other VI-HAM configurations, please contact
Vicor’s Application Engineering Department.
Compatible Modules
Over the full range of input voltages (85 to 264
Vac), the output varies from 260 to 415Vdc.
Therefore the modules used with the HAM are
from the VI-260 and VI-J60 families.
When ordering add the prefix VI- to the part
number below; i.e., VI-260-CU.
VI-200 Family
VI-J00 Family
J60-CW J61-CW J62-CW J63-CW J64-CW 100W
Prod.
Grade
J60-CX J61-CX J62-CX J63-CX J64-CX 75W
J60-CY J61-CY J62-CY J63-CY J64-CY 50W
J60-CZ J61-CZ J62-CZ J63-CZ J64-CZ 25W
Framed area available as boosters.
Change VI-2XX-XX to VI-BXX-XX.
260-CU 261-CU 262-CU 263-CU 264-CU 200W
260-CV 261-CV 262-CV 263-CV 264-CV 150W
260-CW 261-CW 262-CW 263-CW 264-CW 100W
260-CX 261-CX 262-CX 263-CX 264-CX 75W
260-CY 261-CY 262-CY 263-CY 264-CY 50W
M
E
C
I
5V
5V
-10°C to +85°C
-25°C to +85°C
-40°C to +85°C
-55°C to +85°C
Baseplate
12V
Temp.
12V
• Safety Note •
15V
15V
-20°C to +100°C
-40°C to +100°C
-55°C to +100°C
-65°C to +100°C VI-HAM-MM
Storage
Temp.
24V
24V
1-800-735-6200
48V Output
48V Output
VI-HAM-EM
VI-HAM-CM
VI-HAM-IM
Model
Filter Requirements for the VI-HAM
The VI-HAM requires an external filter to meet international standards for conducted
EMI/RFI emissions. P/N 07818 (for use up to 600W) incorporates transient protection
for compliance with IEC 61000-4-5 Level 3 and meets conducted emissions standards
EN55022 and FCC Part 15 Level A (minimum loading of 150W required).
VI-HAM Configurations
VI-HAM-CM
VI-HAMD-CM Driver HAM: No internal bridge rectifier or synchronization diodes.
VI-BAMD-CM Booster HAM: Companion module to VI-HAMD-CM used for
Use the VI-HAM-CM for applications requiring up to 600W from the front end.
For applications in excess of 600W, it is not possible to simply parallel two driver
HAMs due to conflicting control loops. Gate Out to Gate In connections on
respective driver/boosters are used to ensure that the power train of the HAMs
current-share. However, this does not ensure that the diodes in the lower half of the
bridge rectifier will current-share. A solution for this situation is illustrated (see Fig. 8).
A solution to bridge rectifier current sharing issues is to remove the bridge rectifier
from each HAM and use one diode bridge sized to handle the entire load.
Approximately 25% of the heat is removed from the HAM in this approach; use a
VI-HAMD-CM with one or more VI-BAMD-CMs. Note: Synchronization diodes
are required when using this approach (see Fig. 10, page 84).
Figure 8 • VI-HAMD with Booster HAMs (BAMDs) — No Internal Bridge Rectifier
Vac
Driver HAM: Fully configured power factor correcting front end.
additional output power. No internal bridge rectifier.
Line Filter
VI-BAMD
VI-HAMD
VI-BAMD