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EMC test report

EMC test report
EMC test report

Product: Power Supply

Model No: Hilight-012-vco

Serial No: 60100024

Test Standard: EN 55011 Class A

Test result: Fail

Electrical: Input: AC-187v~~253v 50HZ~~60HZ (tolerance 5%) 1.6A

Output: 200Wmax

Report by: Xiao King

Date: 2008/7/29

The EUT has been tested according to EN55011 Class A

For radiated emission and conducted emission tests, the EUT was powered by 220V 50Hz

Conducted emission Test setup

Conducted Emission Test procedure

a. The EUT was placed 0.4 meters from the conducting wall of shielded room with

EUT being connected to the power mains through a line impedance stabilization network (LISN).

b. Both lines of the power mains connected to the EUT were checked for maximum conducted interference.

c. The frequency range from 150 kHz to 30 MHz was searche

d. Emission levels over 10dB under the prescribed limits are not reported.

Mains terminal disturbance voltage P1 (Line)

NOTE:

1. QP and AV are abbreviations of the quasi-peak and average individually.

2. If the emission levels measured with QP detector are lower than AV limits, there is unnecessary to measure with AV detector.

3. The conducted emission levels recorded above is the larger 16db than normal of P1.

Mains terminal disturbance voltage P0 (Null)

NOTE:

1. QP and AV are abbreviations of the quasi-peak and average individually.

2. If the emission levels measured with QP detector are lower than AV limits, there is unnecessary to measure with AV detector.

3. The conducted emission levels recorded above is the larger 16db than normal of P0.

Radiated Emission Setup

Radiated Emission procedure

a. The EUT was placed on the top of an insulating table 0.8 meters above the ground at a semi-anechoic chamber. The table was rotated 360 degrees to determine the position of the highest radiation.

b. The EUT was set 3 meters away from the interference-receiving antenna, which was mounted on the top of a variable-height antenna tower.

c. The antenna is a broadband antenna, and its height is varied from 1 to 4 meter above the ground to determine the maximum value of the field strength. Both horizontal and vertical polarizations of the antenna are set to make the measurement

d. For each suspected emission, the EUT was arranged to its worst case and then the antenna was tuned to the heights from 1 to 4 meters and the ratable table was turned from 0 degrees to 360 degrees to find the maximum reading.

e. The test-receiver system was set to Peak Detector Function and Specified Bandwidth with Maximum Hold Mode. If the emission level of the EUT in peak mode was 10dB lower than the limit specified, then testing could be stopped and the peak values of the EUT would be reported.

Otherwise the emission that did not have 10dB margin would be retested one by one using the quasi-peak method.

Horizontal

EUT:

Test Site: 3m Chamber Test Specification: H

Vertical

EUT:

Test Site: 3m Chamber Test Specification: V

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