EN1M11 View Datasheet(PDF) - Vicor
Part Name
Description
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EN1M11 Datasheet PDF : 12 Pages
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Application Note (continued)
PRELIMINARY
N
EMI GND
+
15Vdc
B OK
150k
ST
SR
EN
Micro-
controller
L
–
FARM3
Figure 11—Enable (EN) function
+In
PC (Gate In)
Vicor DC-DC
Converter
PR (Gate Out)
–In
N
15 Vdc
EMI GND
27kΩ
SR
Micro-
controller
L
+
BOK
ST
EN
–
+5 Vdc
Secondary
referenced
FARM3
Figure 12—Bus OK (BOK) isolated power status indicator
Ripple (V p-p) π – θ θ
Hold-up Time
Power Fail
Warning
Ride-Thru Time
254V
205V
185V
Power
Fail
Figure 13—Hold-up time
B OK
Converter
Shutdown
100
90
80
70
60
50
Total
40
capacitance
820µF
90Vac
115Vac
30
20
10
0
250
500
Operating Power (W)
Figure 15—Ride-through time vs. operating power
30
1100µF
* 820µF
680µF
25
1300µF
1600µF
2200µF
20
*
15
10
5
0
250
500
Operating Power (W)
Figure 16—Ripple voltage vs. operating power and bus
capacitance, series combination of C1, C2 (see Figure 1a)
40
1300µF
1600µF
2200µF
35
30
1100µF
* 820µF
680µF
25
20
15
10
5
*
0
250
500
Operating Power (W)
Figure 14—Hold-up time vs. operating power and total bus
capacitance, series combination of C1, C2 (see Figure 1a)
80
75
70
65
60
55
50
45
40
25
15
30
50
Output Voltage
Figure 17—Converter ripple rejection vs. output voltage
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
ENMods System: FARM3 and MiniHAM
Set your site on VICOR at www.vicorpower.com
Rev. 1.3
Page 9 of 12
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