Electrical interface specifications for self ballasted lamps and controlgear in phase-cut dimmed lighting systems

IEC TR 63037:2019 is available as IEC TR 63037:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC TR 63037:2019 provides guidance to controlgear/integrated lamp designers for the development of products suitable to operate with future phase-cut dimmers. It describes the possible voltage signals and the expected response of the controlgear/integrated lamps. This document describes the expected response of controlgear during all operation states of a phase-cut lighting system and provides a complete understanding of the requirements for phase-cut dimmers. The response of a phase-cut dimmer is described in IEC 60669-2‑1:—, Annex EE. This document specifies the system performance aspects and test procedures for the control by mains voltage phase-cut dimming of the brightness of mains operated electronic lighting equipment intended to be controlled by mains voltage phase-cut dimmers, such as LED integrated lamps and light sources with external controlgear. Safety requirements are not covered by this document, but by respective product standards. This second edition cancels and replaces the first edition published in 2016. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- emission of audible noise;
- ghosting caused by issues that are not related to the power supply of the dimmer or synchronization;
- stability of phase angle waveform (for the dimmer), including symmetry and stability tests;
- flicker of light loads;
- repetitive ring up voltage;
- dimming range; and
- number of switching cycles have been added.

General Information

Status
Published
Publication Date
09-Jul-2019
Technical Committee
Current Stage
PPUB - Publication issued
Completion Date
10-Jul-2019
Ref Project

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IEC TR 63037
Edition 2.0 2019-07
TECHNICAL
REPORT
Electrical interface specifications for self ballasted lamps and controlgear
in phase-cut dimmed lighting systems
IEC TR 63037:2019-07(en)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC TR 63037
Edition 2.0 2019-07
TECHNICAL
REPORT
Electrical interface specifications for self ballasted lamps and controlgear
in phase-cut dimmed lighting systems
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.140.99 ISBN 978-2-8322-7095-0

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC TR 63037:2019 © IEC 2019
CONTENTS

FOREWORD ........................................................................................................................... 4

INTRODUCTION ..................................................................................................................... 6

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 7

3 Terms, definitions, abbreviated terms and symbols .......................................................... 7

3.1 Terms and definitions .............................................................................................. 7

3.2 Abbreviated terms and symbols .............................................................................. 9

4 General description ....................................................................................................... 11

5 General requirements .................................................................................................... 11

5.1 Voltage rating ....................................................................................................... 11

5.2 Frequency rating ................................................................................................... 11

5.3 Marking of controlgear .......................................................................................... 11

6 Description of the lighting system and its components ................................................... 12

6.1 Wiring method ....................................................................................................... 12

6.2 Wiring diagram ...................................................................................................... 12

7 Specifications ................................................................................................................ 12

7.1 General ................................................................................................................. 12

7.2 Electrical characteristics during the on-state of a lighting system .......................... 13

7.2.1 General ......................................................................................................... 13

7.2.2 Electrical characteristics for leading edge dimming method ........................... 13

7.2.3 Electrical characteristics for trailing edge dimming method ............................ 18

7.3 Electrical characteristics during the off-state of a lighting system .......................... 23

7.4 Audible noise ........................................................................................................ 24

7.5 Ghosting ............................................................................................................... 24

7.6 Flicker of light output ............................................................................................ 25

7.7 Dimming range...................................................................................................... 25

7.8 Maximum number of cycles ................................................................................... 25

8 Test procedures ............................................................................................................ 26

8.1 General ................................................................................................................. 26

8.2 Parameters ........................................................................................................... 26

8.3 Tests for leading edge dimmable devices .............................................................. 26

8.3.1 General ......................................................................................................... 26

8.3.2 Test related to the non-conducting phase ...................................................... 26

8.3.3 Test related to the conducting phase and to the transition from the non-

conducting to the conducting phase ............................................................... 27

8.4 Tests for trailing edge dimmable devices .............................................................. 27

8.4.1 General ......................................................................................................... 27

8.4.2 Test related to the conducting phase ............................................................. 27

8.4.3 Test related to the transition from the conducting phase to the non-

conducting phase .......................................................................................... 28

8.4.4 Test related to the non-conducting phase ...................................................... 28

8.5 Tests for characteristics during electronic off-state ............................................... 28

8.6 Testing audible noise ............................................................................................ 29

8.6.1 General ......................................................................................................... 29

8.6.2 Test setup ..................................................................................................... 29

8.6.3 Test procedures ............................................................................................. 31

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IEC TR 63037:2019 © IEC 2019 – 3 –

8.7 Testing ghosting ................................................................................................... 31

8.8 Measurement method for determining flicker ......................................................... 31

8.9 Measurement method for determining dimming range ........................................... 32

Annex A (informative) Voltage shapes to be used for tests ................................................... 34

A.1 General ................................................................................................................. 34

A.2 Waveform description ........................................................................................... 34

Annex B (informative) Equivalent phase-cut dimmer circuit .................................................. 35

Bibliography .......................................................................................................................... 36

Figure 1 – Example of wiring diagram ................................................................................... 12

Figure 2 – Timing leading edge dimming method .................................................................. 14

Figure 3 – Timing trailing edge dimming method ................................................................... 19

Figure 4 – Test setup for testing the conducting phase ......................................................... 27

Figure 5 – Test setup for the transition from conducting to the non-conducting phase ........... 28

Figure 6 – Test setup for the non-conducting phase .............................................................. 29

Figure 7 – Test enclosure ..................................................................................................... 30

Figure 8 – Geometry of microphone placement in relation to the DUT ................................... 30

Figure 9 – Test setup for determination of RMLO .................................................................. 32

Figure A.1 – Waveform of AC voltage ................................................................................... 34

Figure A.2 – Waveform of AC voltage source ........................................................................ 34

Figure B.1 – Schematic diagram of EC_D circuit ................................................................... 35

Table 1 – Nominal mains voltage 100 V; frequency 50 Hz or 60 Hz ....................................... 15

Table 2 – Nominal mains voltage 120 V; frequency 50 Hz or 60 Hz ....................................... 15

Table 3 – Nominal mains voltage 200 V; frequency 50 Hz or 60 Hz ....................................... 15

Table 4 – Nominal mains voltage 230 V; frequency 50 Hz or 60 Hz ....................................... 15

Table 5 – Nominal mains voltage 277 V; frequency 50 Hz or 60 Hz ....................................... 16

Table 6 – Slew rate for voltage decrease across the phase-cut dimmer ................................ 16

Table 7 – Nominal mains voltage 100 V; frequency 50 Hz or 60 Hz ....................................... 17

Table 8 – Nominal mains voltage 120 V; frequency 50 Hz or 60 Hz ....................................... 17

Table 9 – Nominal mains voltage 200 V; frequency 50 Hz or 60 Hz ....................................... 17

Table 10 – Nominal mains voltage 230 V; frequency 50 Hz or 60 Hz ..................................... 18

Table 11 – Nominal mains voltage 277 V; frequency 50 Hz or 60 Hz ..................................... 18

Table 12 – Nominal mains voltage from 100 V to 277 V; frequency 50 Hz or 60 Hz ............... 20

Table 13 – Nominal mains voltage 100 V; frequency 50 Hz or 60 Hz ..................................... 21

Table 14 – Nominal mains voltage 120 V; frequency 50 Hz or 60 Hz ..................................... 21

Table 15 – Nominal mains voltage 200 V; frequency 50 Hz or 60 Hz ..................................... 22

Table 16 – Nominal mains voltage 230 V; frequency 50 Hz or 60 Hz ..................................... 22

Table 17 – Nominal mains voltage 277 V; frequency 50 Hz or 60 Hz ..................................... 23

Table 18 – Currents and voltages for controlgear during the electronic off-state ................... 24

Table 19 – Light output when connected to a dimmer ............................................................ 25

Table 20 – Parameters for testing purposes .......................................................................... 26

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– 4 – IEC TR 63037:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INTERFACE SPECIFICATIONS
FOR SELF BALLASTED LAMPS AND CONTROLGEAR IN PHASE-CUT
DIMMED LIGHTING SYSTEMS
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

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The main task of IEC technical committees is to prepare International Standards. However, a

technical committee may propose the publication of a Technical Report when it has collected

data of a different kind from that which is normally published as an International Standard, for

example "state of the art".
IEC TR 63037, which is a Technical Report, has been prepared by IEC technical
committee 34: Lamps and related equipment.

This second edition cancels and replaces the first edition published in 2016. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
emission of audible noise;

ghosting caused by issues that are not related to the power supply of the dimmer or

synchronization;
---------------------- Page: 6 ----------------------
IEC TR 63037:2019 © IEC 2019 – 5 –

stability of phase angle waveform (for the dimmer), including symmetry and stability tests;

flicker of light loads;
repetitive ring up voltage;
dimming range; and
number of switching cycles have been added.
The text of this Technical Report is based on the following documents:
Draft TR Report on voting
34/517/DTR 34/583A/RVDTR

Full information on the voting for the approval of this Technical Report can be found in the

report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.
---------------------- Page: 7 ----------------------
– 6 – IEC TR 63037:2019 © IEC 2019
INTRODUCTION

This document describes the technical requirements for self-ballasted lamps and controlgear

to work with phase-cut dimmers. For a complete picture of the technical requirements the user

should also refer to IEC TR 63036 (see also IEC 60669-2-1:—, Annex EE), the companion

document that contains technical requirements and testing methods for phase-cut dimmers.

____________
Under preparation. Stage at the time of publication IEC AFDIS 60669-2-1:2019.
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IEC TR 63037:2019 © IEC 2019 – 7 –
ELECTRICAL INTERFACE SPECIFICATIONS
FOR SELF BALLASTED LAMPS AND CONTROLGEAR IN PHASE-CUT
DIMMED LIGHTING SYSTEMS
1 Scope
This document provides guidance to controlgear/integrated lamp designers for the

development of products suitable to operate with future phase-cut dimmers. It describes the

possible voltage signals and the expected response of the controlgear/integrated lamps.

This document describes the expected response of controlgear during all operation states of a

phase-cut lighting system and provides a complete understanding of the requirements for

phase-cut dimmers. The response of a phase-cut dimmer is described in IEC 60669-2-1:—,

Annex EE.

This document specifies the system performance aspects and test procedures for the control

by mains voltage phase-cut dimming of the brightness of mains operated electronic lighting

equipment intended to be controlled by mains voltage phase-cut dimmers, such as LED

integrated lamps and light sources with external controlgear.

Safety requirements are not covered by this document, but by respective product standards.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their

content constitutes requirements of this document. For dated references, only the edition

cited applies. For undated references, the latest edition of the referenced document (including

any amendments) applies.

IEC 60050-845, International Electrotechnical Vocabulary – Part 845: Lighting (available at

http://www.electropedia.org)

IEC 62504, General lighting – Light emitting diode (LED) products and related equipment –

Terms and definitions
3 Terms, definitions, abbreviated terms and symbols
3.1 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60050-845 and

IEC 62504 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
phase-cut dimmed lighting system
lighting system
combination of a phase-cut dimmer and one or more controlgear and light sources
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– 8 – IEC TR 63037:2019 © IEC 2019

Note 1 to entry: The term “lighting system” used in this document is an abbreviated form of "phase-cut dimmed

lighting system".
3.1.2
off-state
state of a lighting system when no light is emitted
3.1.3
on-state
state of a lighting system when light is emitted
3.1.4
electrical interface

electrical parameters for supplying power and making exchange of information between the

phase-cut dimmer and controlgear
3.1.5
phase-cut dimmer
dimmer

electronic switch connected in series with a load, that changes the supply voltage waveform

applied to the load from the mains voltage waveform to a leading edge (forward phase) or a

trailing edge (reverse phase) AC voltage waveform

Note 1 to entry: Some phase-cut dimmers are capable of switching their output between leading edge and trailing

edge waveforms.

Note 2 to entry: The output voltage waveform of a phase-cut dimmer is applied to one or more loads. The

conduction angle of the voltage waveform is adjustable.

Note 3 to entry: Within this document, where the term “dimmer” is used, the term “phase-cut dimmer” is meant.

3.1.6
two-wire phase-cut dimmer

phase-cut dimmer connected in series with a load that has no connection to neutral

3.1.7
three-wire phase-cut dimmer

phase-cut dimmer connected in series with a load that has an additional connection to neutral

3.1.8
controlgear

one or more components between the supply and one or more lamps which may serve to

transform the supply voltage, limit the current of the lamp(s) to the required value, provide

starting voltage and preheating current, prevent cold starting, correct power factor or reduce

radio interference

Note 1 to entry: Lamps may have integrated controlgear such as an integrated LED lamp. Any references to

controlgear will include any such integrated lamps.
3.1.9
load side

connection from the output of the phase-cut dimmer to the supply input of one or more

controlgear
3.1.10
conducting period
time period during which the phase-cut dimmer supplies power to a controlgear
3.1.11
non-conducting period

time period during which the phase-cut dimmer does not supply power to a controlgear

---------------------- Page: 10 ----------------------
IEC TR 63037:2019 © IEC 2019 – 9 –
3.1.12
half-wave

positive or negative 180° of an AC sine wave starting and ending at the zero crossing point

3.1.13
phase angle

position within a half-wave expressed in degree, being in the range of 0° to 180°, referred to

the beginning of the half-wave
3.1.14
reference minimum light output
RMLO

light output (luminous flux) produced by a lamp operated by a controlgear that is connected to

mains voltage via a phase-cut dimmer set to a conduction angle of 40° ± 1°
3.1.15
maximum light output
MLO

light output (luminous flux) produced by a lamp operated by a controlgear that is directly

connected to mains voltage
3.2 Abbreviated terms and symbols

To describe the electrical characteristics of the electrical interface, the following symbols are

used:

α Angle where the test voltage starts rising with the given slew rate SR as shown in

Figure A.1. Subscripts L and 1 (see Table 20) refer to leading and end-of-
transition, respectively.

β Angle where the test voltage starts falling with the given slew rate SR as shown in

Figure A.2. Subscripts T and 1 (see Table 20) refer to trailing and end-of-
transition, respectively.
C Filter capacitor to reduce high frequency disturbances

EC_D Equivalent circuit that represents a phase-cut dimmer for controlgear testing

purposes
I Current through the input terminals of the controlgear (see Figure 1)
I Repetitive peak current of the controlgear in leading edge mode
CG_pk
I Current-carrying capability of the controlgear with V ≤ V in leading edge
CG_SL CG SW
mode
I Current-carrying capability of the controlgear with V ≤ V in trailing edge
CG_STH CG SW
mode
I Current-carrying capability of the controlgear with V > V in trailing edge
CG_STL CG SW
mode
I Current through the load side terminal of the phase-cut dimmer (see Figure 1)
I Maximum current through the phase-cut dimmer during the non-conducting period,
D_nc
limited by the phase-cut dimmer

Minimum current carrying capability of the controlgear during the electronic off-

state
I Current sourced by the phase-cut dimmer during the transition from the
trans
conducting to the non-conducting state in trailing edge mode
n Required minimum number of controlgear connected with one phase-cut dimmer
(named in phase-cut dimmer installation sheet)
P Rated input power of the controlgear (as marked)
---------------------- Page: 11 ----------------------
– 10 – IEC TR 63037:2019 © IEC 2019

P Minimum nominal load required by the phase-cut dimmer (according to installation

min
sheet)

SR Absolute value of the slew rate of the decrease of the voltage across the input

terminals of a controlgear in trailing edge dimming mode when the phase-cut
dimmer switches off at time t (see Figure 3)

SR Absolute value of the slew rate of the increase of the voltage across the input

terminals of a controlgear in leading edge dimming mode when the phase-cut
dimmer under test switches on (according to Clause 8)

SR Absolute value of the slew rate of the decrease of the voltage across the input

terminals of a controlgear in trailing edge dimming mode when the phase-cut
dimmer under test switches off (according to Clause 8)
t Time related to previous zero crossing of the mains to the subsequent zero
crossing of the mains (duration of a half-wave)

t Time related to previous zero crossing of the mains when leading edge phase-cut

dimmer reduces its impedance towards zero by activating its power switch

t Time related to previous zero crossing of the mains when the trailing edge phase-

cut dimmer increases its impedance towards infinite by deactivating its power
switch
t Time related to previous zero crossing of the mains when the voltage V falls
s2 CG
below V in trailing edge method

t Time related to previous zero crossing of the mains when the transition from the

conducting period to the non-conducting period is finished
t Time related to previous zero crossing of the mains when voltage V crosses
SW CG
t Transition time for trailing edge mode, equals t – t
t s2 s1
V Voltage across the input terminals of the controlgear (see Figure 1)
V Repetitive peak voltage across the terminal of the controlgear
CG_PK

V Voltage between the line side (L) and load side terminal of the phase-cut dimmer

(see Figure 1)
V Mains voltage (rated nominal value)
V Phase-cut voltage for testing purposes, sinusoidal part of the waveform (α1 to
t , 0 to β) equivalent to mains voltage

V Lower limit for voltage across the input terminals of the controlgear to provide a

current carrying capability I during the electronic off-state

V Voltage across the input terminals of the controlgear at the time that leads to

disabling (V (t) > V ) or enabling (V (t) < V ), a current path having a current
M SW M SW
carrying capability of I or I
CG_SL CG_STH
V Value of the test voltage of the test circuit in Figure 6 (according to 8.4)
test
xx(t) Instantaneous values of current or voltage xx
Z Impedance across the input terminals of the controlgear

Z Impedance between the line side (L) and the load side terminals of the phase-cut

dimmer
Z Maximum impedance between the line side (L) and load side terminal of the
D_max
phase-cut dimmer, defined by the technical properties of the phase-cut dimmer
Z Minimum impedance between the line side (L) and the load side terminal of the
D_min
phase-cut dimmer, defined by the power properties of the phase-cut dimmer
---------------------- Page: 12 ----------------------
IEC TR 63037:2019 © IEC 2019 – 11 –
4 General description

A phase-cut dimmer either cuts the mains voltage immediately after the zero crossing of the

mains (leading edge) or towards the next projected zero crossing of the mains (trailing edge).

The functionality of both methods can be impl
...

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