参数资料
型号: VE-ARM-C1F
元件分类: 电源模块
英文描述: 1-OUTPUT 500 W AC-DC UNREG PWR SUPPLY MODULE
文件页数: 9/11页
文件大小: 705K
代理商: VE-ARM-C1F
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
ARM, Autoranging Rectifier Module
Rev. 3.9
Page 7 of 11
Set your site on VICOR at vicorpower.com
APPLICATION NOTE (CONT.)
+IN
PC
(GATE IN)
PR
–IN
N
ST
L
+V
BOK
EN
–V
C
Micro-
controller
15 Vdc
To additional modules
Not used with VI-260/VI-J60
Figure 11 — Enable (EN) function; See Fig.8 for details
+IN
PC
PR
–IN
N
ST
L
+V
BOK
EN
–V
C
Micro-
controller
15 Vdc
+5 Vdc
Secondary
referenced
To additional modules
Figure 12 — Bus OK (B OK) isolated power status indicator
N
ST
L
C2
R4
C4
L2/N
L1
GND
L1
R3
L2
R1
R2
L3
C1
C3
F1
Z1
Part
Description
Vicor Part Number
C1
1.0 F
02573
C2, C3
4700pF (Y2 type)
29764
C4
0.15F
03269
F1
10 A Max
05147
L1, L2
27 H
32012
L3
1.3 mH
32006
R1, R2
10
Ω
R3
150 k
Ω, 0.5 W
R4
2.2
Ω
Z1
MOV
30076
Figure 13 — Filter connections
Bus-OK (B OK) Pin.
(See Fig. 12). The Bus-OK pin is
intended to provide early-warning power fail information
and is also referenced to the negative output pin.
Caution: There is no input-to-output isolation in the
ARM. It is necessary to monitor Bus-OK via an
optoisolator if it is to be used on the secondary (output)
side of the converters. A line isolation transformer
should be used when performing scope measurements.
Scope probes should never be applied simultaneously to
the input and output as this will destroy the module.
Filter.
Two input filter recommendations are shown for low
power VI-ARM-x1 and high power VI-ARMB-x2 (See Fig. 13).
Both filter configurations provide sufficient common mode and
differential mode insertion loss in the frequency range between
100 kHz and 30 MHz to comply with the Level B conducted
emissions limit.
Hold-up Capacitors.
Hold-up capacitor values should be
determined according to output bus voltage ripple, power fail
hold-up time, and ride-through time. (See Fig. 14). Many
applications require the power supply to maintain output
regulation during a momentary power failure of specified
duration, i.e., the converters must hold-up or ride-through such
an event while maintaining undisturbed output voltage
regulation. Similarly, many of these same systems require
notification of an impending power failure in order to allow time
to perform an orderly shutdown.
The energy stored on a capacitor which has been charged to
voltage V is:
ε = 1/2(CV2)(1)
Where:
ε = stored energy
C = capacitance
V = voltage across the capacitor
Energy is given up by the capacitors as they are discharged by
the converters. The energy expended (the power-time product)
is:
ε = PΔt = C(V
1
2–V
2
2) / 2
(2)
Where:
P = operating power
Δt = discharge interval
V1 = capacitor voltage at the beginning of Δt
V2 = capacitor voltage at the end of Δt
Rearranging equation 2 to solve for the required capacitance:
C = 2P
Δt / (V
1
2–V
2
2)(3)
C2
C4
R1
C3
C5
L4
L2
L1
L3
R2
C1
L1
L2/N
GND
F1
N
ST
L
Z1
Part
Description
Vicor Part Number
L1,L4
1,000 H 12 A / 6.5 M
Ω
31743
L2, L3
22 H
29764
C1
0.68 F (X type)
02573
C2,C3,C4,C5
4700pF (Y2 type)
03285
C6
0.22 F (X type)
04068
R1
390 k
Ω 1/2 W
R2
10
Ω 1/2 W
F1
15 A Max
Z1
MOV
30076
C6
High power filter
connections
Low power filter
connections
Vicor
DC-DC
Converter
Vicor
DC-DC
Converter
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