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參數(shù)資料
| 型號： | HUGD-50 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Hold-Up Solution 16-40V & 9-36V DC/DC Converter Compatible Metallic Case |
| 中文描述： | 套牢溶液16 - 40V的 |
| 文件頁數(shù)： | 2/13頁 |
| 文件大小： | 374K |
| 代理商： | HUGD-50 |
For locations, phone, fax, E-Mail see back cover
2
Hi-Rel
Grade
HUGD-50 Series
Gaia Converter FC97-027.01/06 Revision H
4
3- Block Diagram
The HUGD-50 module includes 3 main circuits :
An input monitoring circuit
An hold-up charger circuit
A hold-up monitoring circuit
Input monitoring Circuit
:
The input monitoring circuit monitors the value of
the input bus voltage and compares it to the power
fail threshold voltage (Vth) set externally through a
resistor. Depending on this comparison, the circuit
allows the activation of the hold-up switch and the
hold-up charger and generates an isolated power fail
flag (PF).
Hold-up Charger
:
The hold-up charger is used to feed the hold-up
capacitor with a constant Vc=38V voltage. The de-
sign of this charger has been optimized to minimize
the input inrush current which can be set externally
through the Vcl input by a resistor.
Hold-up monitoring Circuit :
The hold-up monitoring circuit monitors the charging
status of the hold-up capacitor.
The circuit generates 2 isolated flags : the capacitor
charged flag (CC) and the capacitor discharged flag
(CD).
These flags can be used at system level for manage-
ment of power interruption (VME system, PCI, ...)
The HUGD-50 features 3 modes of operations :
Charging operation mode
Normal operation mode
power fail mode
The following figure represents the HUGD-50 series
block diagram.
HUGD-50 Block Diagram
Input
Monitoring
Hold-up
Monitoring
Vi
Vcl
Vth
Vo
Hold-up
Charger
Gi
Go
Vc
CC
CD
PF
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