the introduction of new emc emission requirements for ...emc/20150829p1.pdf · the introduction of...

The introduction of new EMC emission

requirements for multimedia equipment

Mr. Kenneth Cheung, Manager

© STC 2015. All rights reserved.


Definition of MultiMedia Equipment (MME)

Information technology equipment , audio equipment , video equipment , broadcast receiver equipment , entertainment lighting control equipment or combinations of these

Examples: PC, CD/DVD player, TV/Radio receiver, Audio amplifier, DMX light controller etc.

Equipment within the scope of EN55013 or EN55022 or EN55103-1 is within the scope of EN55032


“EN55013, EN55022, EN55103-1” What are they?

EN55013

EMC emissions requirements for sound and television broadcast receivers and associated equipment

EN55022

EMC emissions requirements for information technology equipment

EN55103-1

EMC emissions requirements for audio, video, audio-visual and entertainment lighting control equipment for professional use


Enforcement of EN 55032 in EU

EN55032:2012

Identical to CISPR32:2012

(Date of Publication, DOP) 2012-12-05

(Date of Withdrawal, DOW) 2017-03-05

EN55032:2012 supersedes EN55013:2013, EN55022:2010 + AC:2011 and EN55103-1:2009+A1:2012, which will be withdrawn on 2017-03-05


European Standard (EN) Numbering

EN 55032:2012 (year of availability of the EN is separated from the number by a colon)

The first two numerals indicate the origin of the standard:- 40000 to 44999 cover domains of common activities in the IT field

- 45000 to 49999 cover domains of common activities outside the IT field

- 50000 to 59999 cover activities i.e. standardization work undertaken purely at European level

- 60000 to 69999 refer to the implementation of IEC documents with or without changes


International Special Committee on Radio Interference (CISPR)

A special committee under International Electrotechnical Commission (IEC)

CISPR's principal task is at the higher end of the frequency range, from 9 kHz upwards, preparing standards that offer protection of radio reception from interference sources such as electrical appliances of all types, the electricity supply system, industrial scientific and electromedical RF, broadcasting receivers (sound and TV), IT equipment (ITE) and, increasingly, MultiMedia Equipment (MME)

CISPR Generic EMC Standards: IEC 61000-6-1, 61000-6-2, 61000-6-3, 61000-6-4

CISPR Product EMC Standards: CISPR 11 / 12 / 13 / 14 / 15 / 20 / 22 / 24 / 25 / 32 / 35


Enforcement of CISPR 32 / EN55032 in Worldwide

Source: VCCI (2015-July-10)

Australia Hong Kong Singapore

Brazil Japan South Africa

Canada Korea Taiwan

China New Zealand

European Union Saudi Arabia

Source: VCCI (2013-June-25)

Australia Hong Kong

European Union Korea

New Zealand


Enforcement of EMC requirements in HK

CAP 106B

Telecommunications (Control of Interference) Regulations

Propulsion System Installed in Certain Boat and Vehicle

(CISPR12 / EN55012 / GB14023)

Information Technology Equipment (CISPR22 / EN55022 / GB9254 / 47 CFR Part 15)

Sound and Television Broadcast Receivers and Associated Equipment

(CISPR13 / EN55013 / GB13837 / 47 CFR Part 15)

Electrical Lighting and Similar Equipment

(CISPR15 / EN55015 / GB17743)

Household Appliances, Electric Tools and Similar Apparatus(CISPR14-1 / EN55014-1 / GB 4343.1)


Classification of MME

Class B

MME is intended primarily for use in the residential environment and shall meet the Class B limits

Class A

All other MME which satisfies the class A limits. Warning in the instructions for use is a must, to inform the user of the risk of operating this equipment in a residential environment:

Warning: This equipment is compliant with Class A of CISPR 32. In a residential environment this equipment may cause radio interference.


Port Concept

Port - physical interface through which electromagnetic energy enters or leaves the equipment under test (EUT)


Basic Decomposition of EMC Coupling Problem

Identify not only the Receptor but also the source and the path of the disturbance between them.

Source from

EUT (Emitter)

Transfer path

(Coupling)

Receptor

(Receiver)


Measurements

The procedures to be used for measurement of emission levels depend upon several elements:

type of EUT

type of port

types of cables used

frequency range

mode of operation


Measurement Arrangements of EUT

Measure the emissions from the EUT in a manner that is

consistent with its typical arrangement and use

Intended operational

arrangement(s) of MME

Measurement

arrangement

Remarks

Table-top only Table-top

Floor-standing only Floor-standing

Can be floor-standing or table-top Table-top

Rack mounted In a rack or table-top

Other, for example wall

mounted, ceiling mounted,

handheld, body worn

Table-top With normal orientation

If the equipment is designed

to be mounted on a ceiling,

the downward-facing portion

of the EUT may be oriented

facing upward.


Coupling Device for Conducted Emission

AAN (Asymmetric Artificial Network)

AMN (Artificial Mains Network)

Current probe

CVP (Capacitive Voltage Probe)

Matching and combining networks for voltage measurement into 75 Ω

Matching network for voltage measurement into 75 Ω


Coupling Device for Conducted Emission

AMN (Artificial Mains Network)


Measurement Configurations of EUT

Example measurement arrangement for table-top EUT

(conducted emission measurement – alternative 1)



Example measurement arrangement for floor standing EUT (conducted emission measurement)


Requirements for Conducted Emission

AC mains power port

Frequency

range

(MHz)

Measurement Class A limits

(dBµV)

Class B limits

(dBµV) Coupling

device

Detector type/

bandwidth

0.15 – 0.5

AMNQuasi Peak /

9 kHz

79 66 – 56

0.5 – 5 73 56

0.5 – 30 73 60

0.15 – 0.5

AMN Average / 9 kHz

66 56 – 46

0.5 – 5 60 46

0.5 – 30 60 50


Requirements for

Asymmetric Mode Conducted Emission

Wires network port

Optical fibre port with metallic shield or tension members

Antenna port

Frequency

range

(MHz)

Measurement Class A

voltage

limits

(dBµV)

Class A

current

limits

(dBµA)

Class B

voltage

limits

(dBµV)

Class B

current

limits

(dBµA)

Coupling deviceDetector type/

bandwidth

0.15 – 0.5 AAN

Quasi Peak /

9 kHz

97 – 87

N/A

84 – 74

N/A0.5 – 30 87 74

0.15 – 0.5 AAN

Average /

9 kHz

84 – 74 74 – 64

0.5 – 30 74 64

0.15 – 0.5 CVP

and current probe

Quasi Peak /

9 kHz

97 – 87 53 – 43 84 – 74 40 – 30

0.5 – 30 87 43 74 30

0.15 – 0.5 CVP

and current probe

Average /

9 kHz

84 – 74 40 – 30 74 – 64 30 – 20

0.5 – 30 74 30 64 20


Requirements for

Conducted Differential Voltage Emissions

TV broadcast receiver tuner port with connector

RF modulator output port

FM broadcast receiver tuner port with connector

Frequency

range

(MHz)

Detector type / bandwidth

Class B limits

(dBµV) 75Ω

Applicability

Other

Local

Oscillator

Fundamental

Local

Oscillator

Harmonics

30 – 950

For frequencies ≤1 GHz

Quasi Peak / 120 kHz

For frequencies ≥1 GHz

Peak / 1 MHz

46 46 46a)

950 – 2 150 46 54 54

950 – 2 150 46 54 54 b)

30 – 300 4654

50c)

300 – 1 000 46 52

30 – 300 4666

59d)

300 – 1 000 46 52

30 – 950 46 76 46e)

950 – 2 150 46 N/A 54a) TV receivers, video recorders, PC TV tuner cards, digital audio receivers

b) Tuner units (not the LNB) for satellite signal reception.

c) Frequency modulation audio receivers and PC tuner cards.

d) Frequency modulation car radios

e) EUTs with RF modulator output ports designed to connect to TV broadcast receiver tuner ports


Measurement Facility for Radiated Emission

SAC (Semi Anechoic Chamber)

OATS (Open Area Test Site)

FAR (Fully Anechoic Room)

FSOATS (Free Space Open Area Test Site)

An FSOATS may be a SAC/OATS with RF absorber on the reference ground plane or a FAR


Measurement Facility for Radiated Emission

OATS (Open Area Test Site)

SAC (Semi Anechoic Chamber)


Applicability for Radiated Emission

Highest internal frequency

(Fx)

Highest measured frequency

Fx ≤ 108 MHz 1 GHz

108 MHz < Fx ≤ 500 MHz 2 GHz

500 MHz < Fx ≤ 1 GHz 5 GHz

Fx > 1 GHz 5 × Fx up to a maximum of 6 GHz

where Fx is unknown, radiated emission measurements shall be

performed up to 6 GHz



Example measurement arrangement for table-top EUT (radiated emission measurement)



Example measurement arrangement for floor standing EUT (radiated emission measurement)


Requirements for Radiated Emission

Enclosure port (≤ 1GHz)

Frequency

range

(MHz)


(dBµV/m)

Class B limits

(dBµV/m)

Distance

(m)

Detector

type/

bandwidth

OATS/SAC OATS/SAC

30 – 230 10 Quasi

Peak /

120 kHz

40 30

230 – 1 000 47 37

30 – 230 3

50 40

230 – 1 000 57 47



Enclosure port (>1GHz)

Frequency

range

(MHz)


(dBµV/m)

Class B limits

(dBµV/m)

Distance

(m)

Detector

type/

bandwidth

FSOATS FSOATS

1 000 – 3 000

3

Average /

1 MHz

56 50

3 000 – 6 000 60 54

1 000 – 3 000 Peak /

1 MHz

76 70

3 000 – 6 000 80 74



Enclosure port (≤ 1GHz), only for FM receivers

Frequency

range

(MHz)

Measurement Class B limits (dBµV/m)

Distance

(m)

Detector

type/

bandwidth

Fundamental Harmonics

OATS/SAC OATS/SAC

30 – 230

10Quasi

Peak /

120 kHz

50

42

230 – 300 42

300 – 1000 46

30 – 230

3 60

52

230 – 300 52

300 – 1000 56


What’s Out in CISPR32 / EN55032

Deleted measurement of disturbance power ( 30MHz –300MHz according to CISPR13 / EN55013)

Deleted measurement of radiated magnetic fields (50Hz - Hz to 50 kHz according to EN55103-1)


What’s New in CISPR32: 2015 / EN55032: 201x

Added outdoor units of home satellite receivers (LNB), highest measured frequency shall be 18 GHz

Added Fully Anechoic Room (FAR) for radiated emission <1 GHz

Proposed other test methods and associated limits for radiated emissions for GTEM (Gigahertz Transverse ElectroMagnetic) Cell and RVC (ReVerberation Chamber) in informative annex

THANK YOU !THANK YOU !

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