Martek Power Abbott - EMI Test Report #90059M

Electromagnetic Compatibility Test Reports

ELECTROMAGNETIC COMPATIBILITY
TEST REPORT
ON
POWER SUPPLY
MODEL AB50 S/5P

TEST REPORT NO. 90059M

MARCH 8, 1990

Test performed by:	EMACO, INC. 7562 Trade Street San Diego, CA 92121
Test Started:	02/14/90
Test Completed:	02/16/90
EMC Engineer:	DavidBernardin and H.K. Mertel
EMC Technician:	David N. Gray
Approved for EMACO:	N/A
Report Release Date:	03/08/90

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 AB50 S/5P
Date of Test:	February 14, 1990 through February 16, 1991
	A. H. Mills General Manager EMACO, INC.

1.0	INTRODUCTION

1.1	ADMINISTRATIVE DATA
	Customer:	MARTEK POWER ABBOTT 2727 S. La Cienega Boulevard Los Angeles, CA 90034
	Contact:	Mr. Samuel Mermel (213) 202-8829 ext. 294
	P.O. Number:	74636
	Date of Test:	February 14, 1990 through February 16, 1990
	Equipment Under Test (EUT):	Power Supply Model AB50 S/5P, S/N #4
	Input Voltage:	28 Vdc, 2.8 A
	Specification:	MIL-STD-461C, Part 2; MIL-STD-462 Class A1b Equipment
	Disposition of Specimen:	The EUT is to be picked up by MARTEK POWER ABBOTT personnel

1.2	TEST SUMMARY
	The following is a summary of the EMI tests that were performed:*

	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**
	* After the CE01 and CE03 tests, the load box was bonded to the ground plane with conductive tape.
	** 5 Vdc output ripple waveform did not change but the output DC voltage dropped below 4.9 Vdc.

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
Out:	5Vdc/10.0 A
Output Ripple:	100 mVp-p at 25 MHz

	The power supply had only one connector, a 9-pin D-subminiature. Pin 6 was the +28 Vdc lead and Pin 1 was the 28 Vdc return. For testing, pins 4 and 5 were soldered together to one wire to form the +5 Vdc output. Similarly, pins 8 and 9 were connected to one wire for the 5 Vdc return. The electrical output load was resistor bank mounted in a metallic box. The EUT and load box were electrically bonded to the ground plane for all tests except the conducted emissions tests where the load box was isolated from ground but not the EUT. The output leads between the EUT and load box were 4 inches.

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 EUT was designed to operate with 28 volts DC, 78 W power. The power used during testing was 28 Vdc, and 2.8 A.

1.7	INTERCONNECTIONS

	The interconnections during the EMI tests were as shown in Figure 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 to EMACO, INC.

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