| Test performed by: |
EMACO,
INC.
7562 Trade Street
San Diego, CA 92121 |
Test Started: |
27
October 1990 |
| Test Completed: |
16
February 1990 |
| EMC Engineer: |
DavidBernardin and
Timothy Peterson |
| EMC Technician: |
David N. Gray |
| Approved for EMACO: |
A.H. Mills |
| Report Release Date: |
8
March 1990 |
CERTIFICATION OF
TEST DATA |
The electromagnetic
interference test and data evaluation findings of this report have been prepared by an
independent electromagnetic compatibility consultant, EMACO, INC., in accordance with the
applicable specifications and instructions required per the attached Administrative
Summary (Section 1 of this report).
The data, data
evaluation and equipment configuration presented herein are a true and accurate
representation of the measurements of the test sample's radio frequency interference
emission and susceptibility characteristics as of the dates and at the times of the test
under the conditions herein specified. |
| Equipment Tested: |
DC Power Supply Model
AB35D/15 |
| Date of Test: |
October 27, 1990 through January 22, 1991 |
|
A. H.
Mills
General Manager
EMACO, INC.
|
|
DESCRIPTION |
STATUS |
|
a) Conducted Emissions, CE01,
30 Hz to 15 kHz* |
Passed |
|
b) Conducted Emissions, CE03,
15 kHz to 50 MHz* |
Passed |
|
c) Conducted Emissions, CE07,
Time Domain Transients |
Passed |
|
d) Powerline Conducted
Susceptibility, CS01 30 Hz to 50 kHz |
Passed |
|
e) Powerline Conducted
Susceptibility, CS02 50 kHz to 400 MHz |
Passed |
|
f) Powerline Conducted
Susceptibility, CS06, Spikes |
Passed |
|
g) Radiated Emissions, RE02,
14 kHz to 1 GHz, BB; 14 kHz to 10 GHz, NB |
Failed |
|
h) Radiated Susceptibility,
RS02, Magnetic Induction Fields |
Passed |
|
i) Radiated Susceptibility,
E-Field, RS03, 10 kHz to 10 GHz |
Failed |
|
* Both the
MIL-STD-461C, Part 2 and Part 4 limits were plotted on the automated measurement plots per
request of the customer. |
|
|
| 1.3 |
PURPOSE OF
EMI and EMS TESTS |
|
|
|
The purpose of the EMI and EMS
tests were to measure levels of conducted and radiated interference emitted from the EUT
and to determine the immunity of the EUT to external electromagnetic signals and
fields. The test results were compared with the specified limits.
The EMI and EMS
measurements on this EUT were relatively complex. These tests were performed under
the direct guidance of EMACO's Principal Engineers: Mr. David Bernardin, Mr. Al
Mills and Mr. Herb Mertel. |
|
|
| 1.4 |
DESCRIPTION
OF EQUIPMENT UNDER TEST |
|
|
|
The EUT was a DC
to DC power supply with the following specifications: |
| In: |
28Vdc, 1.4 A |
| Out: |
+15 Vdc/1.17 A and -15 Vdc/1.17 A |
| Output Ripple: |
Less than 100 mVp-p at 25 MHz bandwidth |
|
The power supply had a 15-pin,
D-subminiature connector for the power input and output connections. For testing,
both 15 Vdc outputs were connected to 15W (25 W) resistive loads.
The electrical output
loads were resistor banks mounted on a metallic heatsink. The EUT was electrically
bonded to the ground plane for all tests. |
|
|
| 1.5 |
ENVIRONMENTAL
CONDITIONS |
|
|
|
The environment
for the EMI tests was as follows: |
|
a) Temperature: 25° ± 5° C
b) Relative Humidity: Laboratory Ambient
c) Altitude: Laboratory Ambient |
|
|
| 1.6 |
POWER
REQUIREMENTS |
|
|
|
The EUC was designed to operate
with +28 Vdc input voltage. The measured voltage and current used during testing was
28.0 Vdc and 1.4 A (39 W). |
|
|
| 1.7 |
INTERCONNECTIONS |
|
|
|
The interconnections during the
EMI tests were as shown in Figure 1.7-1 which also shows the general test setup used
during all tests. |
|
|
| 1.8 |
APPLICABLE
DOCUMENTS |
|
|
|
The following
documents were applicable to the preparation and performance of the EMI tests discussed:
|
|
MIL-STD-461C
August 4, 1986 |
Electromagnetic Emission and
Susceptibility Requirements for the Control of Electromagnetic Interference, Class A1b
Equipments (Part 2) |
|
MIL-STD-462
July 31, 1967 |
ElectromagneticInterference
Characteristics, Measurement of |
|
DI-R-7063 |
DataItem Description, EMI Test
Plan |
|
DI-R-7062 |
DataItem Description, EMI Test
Report |
|
P.O. #74636 |
PurchaseOrder, MARTEK POWER ABBOTT
LABORATORIES to EMACO, INC. |
|
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