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| 型號： | VE-HAMD-IL |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 675 W AC-DC PWR FACTOR CORR MODULE |
| 封裝： | ROHS COMPLIANT PACKAGE-9 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大小： | 653K |
| 代理商： | VE-HAMD-IL |
Vicor Corp.
Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
HAM, High-Boost Harmonic Attenuation Module
Rev. 2.5
Page 4 of 10
Set your site on VICOR at vicorpower.com
The HAM (Figure 1) consists of a full-wave rectifier, a
high-frequency zero-current switching (ZCS) boost converter,
active inrush current limiting, short-circuit protection, control
and housekeeping circuitry. The incoming AC line is rectified
and fed to the boost converter. The control circuitry varies the
operating frequency of the boost converter to maintain the
output voltage of the HAM above the peak of the incoming
line, while forcing the input current to follow the waveshape
and phase of the line voltage. The AC input current follows the
voltage waveform and a power factor better than 0.99 is
achieved. Operating efficiency of the boost converter is
optimized at any incoming line voltage by an adaptive output
voltage (Figure 3) control scheme.
The output voltage of the HAM is a function of incoming AC
line voltage (Figure 3). On a nominal 115 Vac line, the output
voltage of the HAM is 280 Vdc — well within the input
operating voltage range of Vicor V375 DC-DC converters.
Above 180 Vac input, the output voltage linearly increases with
input voltage. At 230 Vac the delivered voltage will be
approximately 365 Vdc. For any given input line voltage, the
HAM maintains enough headroom between the output voltage
and peak input voltage to ensure high quality active power
factor correction without sacrificing operating efficiency.
Note:
Non-Isolated
Output
Gate In
Gate Out
ZCS
Boost
Converter
Inrush
& Short
Circuit
Protection
High Frequency
Control
Voltage
Waveform
Current
Sense
AC
Line
Control
& House-
keeping
Circuitry
Output Voltage
Module Enable
Power OK
DC
Out
Recti-
fier
Aux. Supply
+
–
NOTE: No input to output isolation.
Input Voltage
VRMS
Rated Output Power
Output Voltage
Output
P
o
wer
(W)
Output
V
olta
g
e
(Vdc)
400
450
500
550
600
650
700
85
250
300
350
400
375
425
325
275
95 105 115 125 135 145 155 165 175 185 195 205 215 225 235 245 255 265
derate output power 11 W/V for Vin <110 Vac
110
Figure 1 — HAM block diagram
Figure 2 — Input voltage and current wave forms, with and
without power factor correction
Without PFC
With PFC
Figure 3 — Output voltage and power rating versus input voltage
TECHNICAL DESCRIPTION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VE-HAM-EL | 2-OUTPUT 675 W AC-DC PWR FACTOR CORR MODULE |
| VE-HAM-IL | 2-OUTPUT 675 W AC-DC PWR FACTOR CORR MODULE |
| VE-BAMDEL | 2-OUTPUT 675 W AC-DC PWR FACTOR CORR MODULE |
| VI-HAM-CL | 2-OUTPUT 675 W AC-DC PWR FACTOR CORR MODULE |
| VI-IAM | Input Attenuator Modules |
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| VE-HAMD-IM | 制造商:POWERBOX 制造商全稱:Powerbox 功能描述:AC INPUT HARMONIC ATTENUATOR MODULE |
| VE-HAMD-ML | 制造商:POWERBOX 制造商全稱:Powerbox 功能描述:AC INPUT HARMONIC ATTENUATOR MODULE |
| VE-HAMD-MM | 制造商:POWERBOX 制造商全稱:Powerbox 功能描述:AC INPUT HARMONIC ATTENUATOR MODULE |
| VE-HAM-EL | 制造商:POWERBOX 制造商全稱:Powerbox 功能描述:AC INPUT HARMONIC ATTENUATOR MODULE |
| VE-HAM-EM | 制造商:POWERBOX 制造商全稱:Powerbox 功能描述:AC INPUT HARMONIC ATTENUATOR MODULE |
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