VI-HAM-MM Vicor Corporation, VI-HAM-MM Datasheet - Page 6

• Manufacturer Part Number: VI-HAM-MM
• Manufacturer: Vicor Corporation

PIN FUNCTION / DESCRIPTION (CONT.)
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A/S
The HAM provides a low voltage non isolated output Auxiliary
Supply (A/S) that may be used to power primary side control
and monitoring circuitry. This output is 19 – 23 Vdc, referenced
to -OUT, at 3 mA max. Do not overload or short this output as
the HAM will fail. A typical use for A/S is to power an optical
coupler that isolates the Power OK signal Figure 6.
E/O
The Enable Output (E/O) is used to inhibit the DC-DC
converters at start up until the hold up capacitors are charged,
at which time Enable is asserted high (open state, Figure 8).
If the AC line fails, E/O goes low when the DC output of the
HAM drops below 195 Vdc.
E/O must be connected to the Gate Input of all VI-26x and
VI-J6x drivers Figure 4; failure to do so may cause the
converters to toggle on and off. It is not necessary to connect
this pin to boosters as they are controlled by their respective
driver. If an external load is connected directly to the output
of the HAM, do not apply the load until the output hold up
capacitor(s) are fully charged.
The E/O pin ancillary circuitry illustrated in Figures 4 and 5
provides transient immunity. The illustrated circuitry is the
minimum required, see Figures 4 and 5.
Figure 5
Input
Component
Designation
C1
C2, C3
C4
C5–C8
C9,C10
D1
D2, D3
D4, D5
F1, F2
F3
R1
R4**
V1
Z1, Z2
Z3
V1
F3
Description
0.1 μF ceramic, 50 V
0.01 μF ceramic, 50 V
Hold up capacitor,
1000 to 6,000 μF
4,700 pF Y2 cap.
0.2 μF, 500 V
1N4691
1N4006
1N5817
Use recommended fusing for specific
DC-DC Converters
20 A, 250 V
50 KΩ
100 KΩ, 2 W
240 V MOV
130 V Transorb
150 V Transorb
GND
L1
L2/N
diode, 800 V
schottky diode, 20 V
zener, 6.2 V
P/N 1319-13
JMK Filter
12.6 A
*
Available as a HUB
L2/N
Set your site on VICOR at vicorpower.com
Film or Ceramic
adjoining table)
L1
Part Number
1.5KE130CA
1.5KE150CA
from Vicor (see
Vicor
00670
01000
30076
1N4006
1N4006
Bridge
Rectifier
Vicor P/N 30660
2000 μF HUB1000-P 1200 W
Hold up Box (HUB)
Z1
Z2
Z3
HAM, Harmonic Attenuation Module
10 A
10 A
GATE IN
GATE OUT
+IN
-IN
+IN
GATE IN
GATE OUT
-IN
Figure 6
* Consult Vicor's Applications Engineering for specific
** A 100 KΩ, 2 W resistor is used for every 1,000 μF
HAMD / BAMD filtering information.
of hold up capacitance.
VI-HAMD-xM
VI-BAMD-xM
19 – 23 V
+OUT
P/OK
+OUT
-OUT
-OUT
E/O
A/S
+
–
R1
D1
C4
+OUT
–OUT
P/OK
+OUT
–OUT
P/OK
C1
R4
E/O
A/S
E/O
A/S
**
C2
D2
F1
F2
VI-26x or VI-J6x DC-DC Converters
C10
D4
I AS ≤ 3 mA
C9
DO NOT OVERLOAD
or directly connect a capacitor
to the A/S terminal.
Rev. 2.0
18 kΩ, 1/4 W
+IN
GATE IN
GATE OUT
+IN
GATE IN
GATE OUT
-IN
-IN
C6
C7
C8
C5
"Power OK" Status
Low = OK
Booster (N)
Driver
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