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| 型號： | VE-BAMD-MMVE-BAMD-MM |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 600 W AC-DC PWR FACTOR CORR MODULE |
| 封裝： | ROHS COMPLIANT PACKAGE-9 |
| 文件頁數(shù)： | 8/10頁 |
| 文件大?。?/td> | 662K |
| 代理商： | VE-BAMD-MMVE-BAMD-MM |
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
HAM, Harmonic Attenuation Module
Rev. 2.0
Page 7 of 10
Set your site on VICOR at vicorpower.com
Outputs
DC-DC Converter(s)
Rectified Line
Enable Output (E/O)
DC Output
of HAM
Power OK (P/OK)
AC Mains
120 Vrms
Boost Voltage
195 Vdc
240 Vdc
Off at 195 Vdc
Off at 230 Vdc
230 Vdc
25 ms
10 ms
Off below 195 Vdc
Figure 9 — Start up / shut down timing diagram
Figure 7 — Power OK (P/OK)
LOGIC
P/OK
–OUT
+OUT
E/O
S
G
D
A/S
LOGIC
E/O
–OUT
+OUT
P/OK
A/S
S
G
D
Figure 8 — Enable / Output (E/O)
P/OK
Power OK is a monitor signal that indicates the status of the
AC mains and the DC output voltage of the HAM. P/OK is
asserted (active low) when the output bus voltage is within
normal operating range 20 – 25 ms after DC-DC converters are
enabled by the E/O signal of the HAM. This provides sufficient
time for the converters to turn on and their output(s) to stabilize
prior to P/OK being asserted, Figure 9. For momentary
interruptions of AC power, the HAM will provide at least 16
ms of ride through or hold up time (with 1,000 F output
capacitor). On loss of power or brownout, (when the HAM
output voltage drops below 230 Vdc) the P/OK signal will go
to an open circuit state, see Figure 7, signaling an impending
loss of input power to the converter modules. P/OK will
provide power fail warning at least 1 ms prior to converter shut
down. When the HAM output voltage drops below 195 Vdc the
converters are disabled via Enable Output (E/O).
PIN FUNCTION / DESCRIPTION (CONT.)
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