Vicor Corp.

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

HAM, High-Boost Harmonic Attenuation Module

Rev. 2.5

Page 9 of 10

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Safety Notes

Each HAM, HAMD or BAMD module must be preceded by

a safety agency recognized fast-blow 10A 3AG fuse.

The HAM is not isolated from the line – either input or

output; a line isolation transformer must be used when

making scope measurements. HAMs do not provide input

to output isolation. Differential probes should be used when

probing the input and output simultaneously to avoid

destructive ground loops.

Protective Features

Over Temperature Shut Down

The HAM is designed to shut down when the temperature of

the baseplate exceeds 90°C. Do not operate the HAM above its

maximum operating temperature of 85°C.

Short Circuit Protection

The HAM contains output short circuit protection. Operation of

this function does not clear the input fuse and the output will

resume normal operation after removal of the fault.

A short period of time may be required to allow for cooling

of an internal temperature sensor.

Output Over Voltage Protection

The HAM contains output over voltage protection. In the event

the output voltage exceeds approximately 420 Vdc, the boost

will decrease to maintain 420 Vdc on the output. When the

peak of the AC line exceeds 420 V (approximately 293 Vac)

the boost will have been reduced to zero and the E/O line will

be pulled low shutting down the converters. Beyond this the

protection circuit will be enabled and the output voltage

will decrease.

Table 2 — HAM filter part #30205 specifications

Parameter

Min

Typ

Max

Unit

Operating voltage

85

250

Vac

Operating temperature (See Fig.12)

–20

40

°C

Leakage current at 264 Vac, 63 Hz

1.2

mA

(Either line to earth)

Operating current

6.3

A

Dielectric withstand (line – case)

1500

Vac

Residual voltage after 1 sec.

34

V

Operating frequency

50

60

Hz

Agency Approvals

UL, CSA, TÜV

Product ID

this surface

FULL R

5

6

7

8

9

4

3

2

1

0.040 (1,0) Dia (7) places

0.080 (2,0) Dia.

0.30

±.015

(7,6)

±(0,38)

1.80

(45,7)

(116,8)

0.15

(3,8)

2.10

(53,3)

0.40

(10,2)

.35

±.015

(8,9)

±(0,38)

1.40

(35,6)

1.00

(25,4)

0.70

(17,8)

3.60

0.50

(12,7)

Pin #

1

2

3

4

5

6

7

8

9

HAM

L1

GATE IN

GATE OUT

L2/N

+OUT

P/OK

E/O

A/S

–OUT

HAMD

+IN

GATE IN

GATE OUT

–IN

+OUT

P/OK

E/O

A/S

–OUT

BAMD

+IN

GATE IN

GATE OUT

–IN

+OUT

N/C

N/C

A/S

–OUT

(2) places

HAM

4.60

(91,4)

0.15

(3,8)

+.030 (0,76)

-.000 (0)

.01

(12,7)

(5,08) MIN

(106,7)

0.20

(3,0)

0.12

4.20

0.50

(7,36) MAX

0.29

(7,6) Min

Aluminum Base

(61,0)

(44,5)

0.30

2.40

1.75

Figure 14 – HAM / HAMD / BAMD Module Outline

Note: Mounting a High Boost HAM and Maxi, Mini or Micro DC-DC converter to the same heat sink will require the use of custom length standoffs or

a step in the heat sink mounting surface. This is due to a mechanical stack up difference between the HAM and Maxi, Mini, and Micro converters that

leads to incompatible baseplate height above the PCB.

PIN FUNCTION / DESCRIPTION (CONT.)

MECHANICAL DRAWING