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VI-HAM-CM

Harmonic Attenuator Modules

Vicor

VI-HAM-CM Datasheet PDF : 6 Pages

1 2 3 4 5 6

12 1-800-735-6200

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

Line Input

47–63 Hz

Output Power

VI-HAM

85V to 264V

(Volts AC)

Up to 600W

VI-HAMD

85V to 264V

(Rectified AC)

Up to 600W

VI-BAMD

85V to 264V

(Rectified AC)

Up to 600W

Efficiency

Power Factor

Total Har. Distortion (line current)*

Output Ripple

Inrush Current

Output Capacitance

90–91%

93–94%

0.99

<7.5%

<8.5%

7V p-p

5V p-p

<13A peak

<20A peak

500-3000 µF

90-91% (With ext. rectifier loss)

93-94% (With ext. rectifier loss)

0.99

<7.5%

<8.5%

7V p-p

5V p-p

<13A peak

<20A peak

500-3000 µF

90–91% (With ext. rectifier loss)

93–94% (With ext. rectifier loss)

0.99

<7.5%

<8.5%

7V p-p

5V p-p

<13A peak

<20A peak

500-3000 µF

Ride Through/Holdup Time

16 ms

Transient Surge Withstand,

Included in the

Normal Mode

external filter

Isolation Voltage

Input to Output

None

Input to Baseplate

1,500 VRMS

Output to Baseplate

1,500 VRMS

Auxiliary Output

19-23Vdc

@ ≤3 mA

@ ≤10 mA

Thermal Shutdown

90°C-100°C baseplate

N/A

Baseplate Temperature -10°C to +85°C (E-Grade) -25˚C to +85˚C (C-Grade) -40˚C to +85˚C (I-Grade) -55˚C to +85˚C (M-Grade)

Storage Temperature

-40˚C to +100˚C (C-Grade) -55˚C to +100˚C (I-Grade) -65˚C to +100˚C (M-Grade)

Short Circuit Protection

Yes

MTBF (GB, 25˚C)

>420,000 hours

>424,000 hours

>818,000 hours

Size

4.6" x 2.4" x 0.5"

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

Weight

6 Ounces (170 Grams)

Remarks

Unit will operate from 400 Hz, but

may not meet PF or THD specs

Derate from 110Vac to 85 Vac @

8W/Volt

120Vac, full load

240Vac, full load

120/240Vac, 50-100% of full load

Sinusoidal, 120Vac, full load

Sinusoidal, 240Vac, full load

120Vac, full load

240Vac, full load

120Vac, full load

240Vac, full load

External to HAM (for 600W load)

(1000 µF Nom.)

600W output with a 1000 µF hold-

up capacitor (300W = 500 µF, etc.)

Isolation provided

by DC-DC converters

Note: Not short circuit protected

* ITHD = HAMTHD – VTHD

Line current total harmonic distortion = input voltage distortion plus 8.5% max.

Application of the VI-HAM

The VI-HAM must be used in conjunction

with a suitable line filter, such as Vicor’s P/N

07818**, output holdup capacitor and Vicor

DC-DC converters (see Fig. 9). Connect

single phase AC mains to the input of the line

filter via a standard 10A AC fuse. Connect

the output of the filter to L1 and L2/N of the

VI-HAM. Do not put an X capacitor across

the input of the VI-HAM or use a line filter

with an X capacitor on its output as power

factor correction may be impacted. Connect

the +Output of the VI-HAM to the +Input of

the converters via a 3A PC Tron DC fuse.

Connect the -Output of the VI-HAM to the -

Input of the converters. Connect a 1000 µF

electrolytic capacitor rated at a minimum of

450Vdc across the + and -Output of the VI-

HAM (or 500 µF for 300W, etc). This

capacitor must be in close proximity to the

VI-HAM. Connect the Enable Output of the

VI-HAM to the Gate Input of each driver

converter to disable the converters until the

output of the VI-HAM is within normal

operating range. Please refer to Vicor's

Applications Manual for information on the

proper connection of the DC-DC converters.

The aforementioned connections are the

minimum required. In addition, there are

other features available.

• The Auxiliary Supply output is approximately

21V at 3 mA max. This output is usually used

in conjunction with the Power OK signal.

Power OK provides an indication of the

status of the DC output and the AC mains.

• The Enable Output of the VI-HAM must be

connected to the Gate Input of all driver

modules. The VI-HAM will then disable the

module output until the input exceeds 85Vac

and the output has been boosted to 260Vdc.

If an external load is connected directly to the

output of the VI-HAM, do not apply the load

until the output of the VI-HAM is in boost mode.

• Although the efficiency of the VI-HAM is

quite high, it still dissipates significantly

more power than a VI-200 DC-DC converter.

**Contact the Vicor technical support center for filter substitutes

Care should be taken to cool it. Thermal

compound should be used between the

heatsink and baseplate of the VI-HAM,

VI-HAMD and VI-BAMD.

• When making any connections to the

VI-HAM for measurement purposes,

remember that it is not isolated from the

line — either input or output. A line

isolation transformer must be used when

making scope measurements.

• The input voltage range of the VI-HAM is

85 to 264Vac; however it may not start

boosting until the AC mains has exceeded

87Vac. Once the VI-HAM has started, it will

operate down to 85Vac. The VI-HAM

contains 2.5 to 6V of input hysteresis,

therefore if the AC line impedance is high,

i.e., when using a variable autotransformer,

the VI-HAM may start, but the AC line may

then fall enough to drop below undervoltage

lockout. When this happens the AC line will

go up, the VI-HAM starts and the cycle

repeats. Therefore avoid soft AC lines at or

near low line.

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

HAM, Harmonic Attenuator Module

Set your site on VICOR at www.vicorpower.com

Rev. 1.1

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