VI-BAMD-CM Vicor Corporation, VI-BAMD-CM Datasheet

VI-BAMD-CM

Manufacturer Part Number

VI-BAMD-CM

Description

Manufacturer

Vicor Corporation

Datasheet

1.VI-BAMD-CM.pdf (6 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

VI-BAMD-CM

Manufacturer:

VICOR

Quantity:

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

VI-BAMD-CM

Manufacturer:

MARTEK

Quantity:

560

Current page: 1 of 6
Download datasheet (223Kb)

Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715

VI-HAM

Harmonic Attenuator

Modules

Features

Figure 1a.

Figure 1b.

Above: Oscilloscope photos showing input

voltage and current without power factor

correction (A) and with power factor correction

as provided by the VI-HAM (B).

Safety Agency Approvals:

UL, CSA, TÜV, BABT

Meets IEC 6100-3-2 for Line

Current Harmonic Content

Reduces Peak and RMS Line

Currents

Universal Input: 85-264Vac:

50/60 Hz

Up to 600W of Power

Power Density Up to100W/in

Adaptive Output Voltage Control

Short-Circuit Protection

Input Surge Current Limiting

Converter Enable

Power OK Output

Size: 4.6" x 2.4" x 0.5"

(116,8mm x 61,0mm x 12,7mm)

Efficiency: 90-94% Typical

CE Marked

Unity Power Factor

Set your site on VICOR at www.vicorpower.com

1-800-735-6200

Unity Power Factor

Conventional capacitive-input front ends draw

energy from the AC line in short bursts of current

at the peaks of the line voltage waveform. These

current bursts are characterized by high peak

currents and high harmonic content. The effect of

the distorted line current can be appreciated by

measuring the rms line current drawn by a

conventional front end: the product of the

measured rms current and the rms line voltage —

the "apparent power" being delivered by the line

— will be significantly greater (typically 1.6X)

than the DC power delivered by the front end.

The "extra" rms current at the input is circulating

harmonic currents which deliver no power to the

load but which flow in the delivery system and

contribute to losses. Only the fundamental

component of the line current contributes to "real"

power flow. Power factor — the ratio of "real" to

"apparent" power — is a measure of the

effectiveness with which an AC load can extract

usable power from an AC source.

The VI-HAM (see Fig. 2) consists of a

full-wave rectifier, a proprietary high-frequency zero-

current switching (ZCS) boost regulator (patents

applied for), active inrush, short-circuit protection,

control and housekeeping circuitry. The incoming

AC line is rectified and fed to the ZCS boost

converter. The control circuitry varies the operating

frequency of the ZCS boost converter so as to

simultaneously maintain the output voltage of the

VI-HAM at a DC voltage value above the peak of

the incoming line, while forcing the input current

to the ZCS converter to follow the waveshape of

the rectified line. By this means, the AC input

current follows the AC voltage waveform and a

power factor better than 0.99 is achieved.

Operating efficiency of the ZCS boost converter is

optimized at any incoming line voltage by a

patented adaptive output voltage control scheme.

Gate Out

NOTE: No input to output isolation.

Gate In

Line

Waveform

Voltage

Recti-

fier

HAM, Harmonic Attenuator Module

Figure 2 • VI-HAM Block Diagram

& House-

Converter

Circuitry

keeping

Control

Current

Sense

Boost

ZCS

Aux. Supply

High Frequency

Control

The VI-HAM also includes active circuitry which

controls inrush currents when power is applied

and active short circuit protection circuitry —

features not normally found in conventional power

factor correctors.

Housekeeping circuitry provides two signals of

use to the system designer (see Fig. 2): Module

Enable and Power OK. Referencing the timing

diagram (see Fig. 3), the Module Enable signal,

which is connected to the Gate In inputs of the

Vicor DC-DC converters powered by the

VI-HAM, will come high and enable the DC-DC

converters when the VI-HAM output voltage

exceeds 240Vdc. The DC-DC converter voltage

outputs will be up approximately 10 ms after

Module Enable goes high. Typically, 20 ms after

Module Enable goes high the VI-HAM Power OK

signal, which can be used by the system designer

to enable circuitry powered by the DC-DC

converter modules, goes low. On loss of power or

brownout, the Power OK signal will go high when

the VI-HAM DC output voltage drops below

230V, signaling an impending loss of input power

to the converter modules. When the DC output

dips below 195V, the Module Enable signal will

toggle low, disabling the converter modules and

unloading the VI-HAM. The VI-HAM will

provide at least 16 ms of ride-through or holdup

time, and at least 5 ms of AC fail warning time

with a 1000 µF output capacitor.

Module Enable

Output Voltage

Protection

Power OK

& Short

Circuit

Inrush

Rev. 1.1

Out

Note:

Non-Isolate

Output

–

Page 1 of 6

Related parts for VI-BAMD-CM

VI-BAMD-CM Summary of contents

Page 1

... The control circuitry varies the operating frequency of the ZCS boost converter simultaneously maintain the output voltage of the VI-HAM voltage value above the peak of the incoming line, while forcing the input current to the ZCS converter to follow the waveshape of the rectified line. By this means, the AC input current follows the AC voltage waveform and a power factor better than 0 ...

Page 2

... Figure 5 • Auxiliary Supply (A/S) • Power OK (P/OK) P/ monitor signal that indicates the status of the AC mains and the DC output voltage of the VI-HAM. P/OK, during normal operation active low (see Fig. 6). In the event AC mains or DC output fails, this pin goes to an open circuit state. P/OK is asserted ...

Page 3

... VI-HAM and use one diode bridge sized to handle the entire load. Approximately 25% of the heat is removed from the VI-HAM in this approach; use a VI-HAMD-CM with one or more VI-BAMD-CMs. Note: Synchronization diodes are required when using this approach (see Fig. 10). ...

Page 4

... Specifications VI-HAM and VI-HAMD With External Bridge and Synchronization Diodes, 1000 µF Output Capacitor and Vicor Line Filter P/N 07818. VI-BAMD When Operated with VI-HAM and VI-HAMD, Respectively. (Unless otherwise indicated, specifications apply over operating input voltage and temperature range) Parameter ...

Page 5

... VI-HAM (53, FULL R 0.15 0.15 (3,8) Product ID (3,8) this surface Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 Set your site on VICOR at www.vicorpower.com 260-400 Vdc Up to 600W OUT GATE P/OK 1000 µF IN E/O VI-HAM GATE A/S OUT – OUT L2/N 24V Zener ...

Page 6

... Vicor. Vicor components are not designed to be used in applications, such as life support systems, wherein a failure or malfunction could result in injury or death. All sales are subject to Vicor’s Terms and Conditions of Sale, which are available upon request. ...

Related keywords

VI-BAMD-CM datasheet
VI-BAMD-CM data sheet
VI-BAMD-CM pdf datasheet
VI-BAMD-CM component
VI-BAMD-CM part
VI-BAMD-CM distributor
VI-BAMD-CM RoHS
VI-BAMD-CM datasheet download