NEMA C82 16-2015 Light-Emitting Diode Drivers Methods of Measurement Secretariat National.pdf

1、NEMA Standards Publication National Electrical Manufacturers Association ANSI C82.16-2015 Light-Emitting Diode Drivers Methods of Measurement 2016 National Electrical Manufacturers Association ANSI C82.16-2015 American National Standard for Light-Emitting Diode Drivers Methods of Measurement Secreta

2、riat: National Electrical Manufacturers Association Approved November 10, 2015 American National Standards Institute, Inc. 2016 National Electrical Manufacturers Association NOTICE AND DISCLAIMER The information in this publication was considered technically sound by the consensus of persons engaged

3、 in the development and approval of the document at the time it was developed. Consensus does not necessarily mean that there is unanimous agreement among every person participating in the development of this document. American National Standards Institute (ANSI) standards and guideline publica tion

4、s, of which the document contained herein is one, are developed through a voluntary consensus standards development process. This process brings together volunteers and/or seeks out the views of persons who have an interest in the topic covered by this publication. While NEMA administers the process

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12、statement. C82.16-2015 Page i 2016 National Electrical Manufacturers Association AMERICAN NATIONAL STANDARD Approval of an American National Standard requires verification by The American National Standards Institute, Inc. (ANSI) that the requirements for due process, consensus, and other criteria f

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19、al Manufacturers Association 1300 North 17th Street, Suite 900 Rosslyn, VA 22209 www.nema.org 2016 National Electrical Manufacturers Association. All rights reserved including translation into other languages, reserved under the Universal Copyright Convention, the Berne Convention for the Protection

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21、. C82.16-2015 Page ii 2016 National Electrical Manufacturers Association FOREWORD This foreword is not part of ANSI C82.16-2015. This is a new standard and not a revision of a previous standard. Suggestions for improvement on this standard will be welcome. They should be sent to the following addres

22、s: Secretary of ASC C82 National Electrical Manufacturers 1300 North 17 thStreet, Suite 900 Rosslyn, VA 22209 This standard was developed and approved for submittal to ANSI by the Accredited Standards Committee (ASC) on Lamp Ballasts, C82, and its working group, C82WG04. Approval of this standard is

23、 not meant to imply that all working group members voted to approve it. Information concerning approval of this standard is based on the documents listed in the table below. C82.16-2015 Page iii 2016 National Electrical Manufacturers Association CONTENTS Page Section 1 General 1 1.1 Purpose . 1 1.2

24、Scope . 1 1.3 Normative References . 1 1.4 Definitions 1 1.4.1 LED Driver Operation Points Definitions . 1 1.4.2 LED Load . 2 1.4.3 DC Ripple Factor . 3 1.4.4 Run-Up Time . 3 1.4.5 Starting Time . 3 1.5 General Characteristics . 4 1.5.1 Power Supply Electrical Characteristics 4 1.5.1.1 Input Voltage

25、 and Frequency 4 1.5.1.2 Line Voltage Wave Shape 4 1.5.1.3 Power Supply Voltage Stability 4 1.5.1.4 Power Supply Source Impedance 5 1.6 Pertinent Measurements . 5 1.6.1 LED Driver Input 5 1.6.2 Constant Voltage Regulated Output 5 1.6.3 Constant Current Regulated Output 5 1.6.4 High Voltage Withstand

26、 . 5 1.6.5 Transient Protection 5 1.7 Instruments 5 Section 2 LED Driver Electrical Parameters Test Conditions 7 Section 3 LED Driver Electrical Parameters at Minimum and/or Maximum Ambient Operating Temperature Test Conditions . 8 Section 4 LED Driver Input Voltage . 9 Section 5 LED Driver Input Cu

27、rrent . 10 Section 6 LED Driver Input Power . 11 Section 7 LED Driver Input Power Factor . 12 Section 8 LED Driver Input Current Total Harmonic Distortion (THD) 13 Section 9 Inrush Current 14 9.1 Indirect Verification 14 9.2 Inrush Current Model Basics . 14 9.2.1 Inrush Current Model Calibration 14

28、9.2.2 Simulation Execution . 15 9.3 Direct Testing Measurement . 16 Section 10 LED Driver Output Electrical Parameters Test Conditions . 17 10.1 Constant Voltage LED Driver Output Electrical Parameters . 17 10.1.1 LED Driver Output Open Circuit Voltage . 17 10.1.2 LED Driver Output Voltage 18 10.1.3

29、 LED Driver Maximum and Minimum Peak Voltage . 18 10.1.4 LED Driver Output Ripple Voltage . 18 C82.16-2015 Page iv 2016 National Electrical Manufacturers Association 10.1.5 LED Driver Output Current 19 10.1.6 LED Driver Output Power 19 10.1.7 LED Driver Energy Efficiency 19 10.1.8 LED Driver T cPoin

30、t Temperature 20 10.2 Constant Current LED Driver Output Electrical Parameters . 20 10.2.1 LED Driver Output Open Circuit Voltage . 20 10.2.2 LED Driver Output Current 21 10.2.3 LED Driver Maximum and Minimum Peak Current . 21 10.2.4 Output Current Ripple 21 10.2.5 Output Voltage . 21 10.2.6 LED Dri

31、ver Output Power 21 10.2.7 LED Driver Energy Efficiency 22 10.2.7.1 LED Driver Energy Efficiency during Dimming 22 10.2.8 LED Driver T cPoint Temperature 22 Section 11 Starting Time 23 Section 12 Run-up Time . 24 Section 13 Transient Protection 25 Section 14 Deviations . 26 FIGURES Page Figure 1 LED

32、 driver voltage versus LED driver current operational range . 2 Figure 2 LED driver current versus LED driver voltage operational range . 2 Figure 3 LED loads . 3 Figure 4 Run-up time 3 Figure 5 Starting time 4 Figure 6 Input power, input current, power factor, and THD test setup 9 Figure 7 Computer

33、-assisted inrush current test model . 14 Figure 8 Computer-assisted inrush current test model . 16 Figure 9 LED driver output voltage, current, and power . 17 Figure 10 Voltage and current ripple test setup 18 Figure 11 LED driver temperature test 20 Figure 12 Starting and run-up time . 23 TABLES Pa

34、ge Table 1 Instrumentation 6 ANSI C82.16-2015 Page 1 2016 National Electrical Manufacturers Association Section 1 General 1.1 PURPOSE This document complements standards and specifications that set performance limits, such as NEMA SSL 1, and provides guidance for testing methods for government speci

35、fications and other organizations. 1.2 SCOPE This standard describes the procedures to be followed and the precautions to be taken in measuring performance of LED drivers. The scope includes, but is not limited to, LED drivers with these characteristics: General lighting, exterior lighting, and road

36、way lighting applications Input supply voltage up to 600 VDC or 600 VAC (50 or 60 Hz) Output open-circuit voltage of 600 V or less Constant-current or constant-voltage direct current (DC) output Fixed, variable (dimmable), pulse-width modulation, or programmable (tunable) output power External (stan

37、dalone) or internal (enclosed in luminaire) 1.3 NORMATIVE REFERENCES The following publications contain provisions that, through reference in this text, constitute provisions of this American National Standard. All standards are subject to revision, and parties to agreements based on this American N

38、ational Standard are encouraged to investigate the possibility of applying the most recent editions of the publications indicated below. ANSI C82.11-2011 American National Standard for Lamp BallastsHigh-Frequency Fluorescent Lamp Ballasts ANSI C82.77-5-2015 American National Standard for lighting eq

39、uipmentVoltage Surge Requirements ANSI C82.77-10-2014 American National Standard for Lighting EquipmentHarmonic Emission LimitsRelated Power Quality Requirements NEMA 410-2011 Performance Testing for Lighting Controls and Switching Devices with Electronic Drivers and Discharge Ballasts FCC Title 47

40、Title 47 of the Code of Federal Regulations, Part 15 NEMA SSL 1-2010 Electronic Drivers for LED Devices, Arrays, or Systems UL 8750-2 (2015) Standard for Light-Emitting Diode (LED) Equipment for Use in Lighting Products 1.4 DEFINITIONS 1.4.1 LED Driver Operation Points Definitions See figures 1 and

41、2. The two figures are to illustrate the concepts of current control and voltage control. They are theoretical frames, rather than actual measurements. C82.16-2015 Page 2 2016 National Electrical Manufacturers Association v i Open Circuit Voltage LED driver current operational range minim um stable

42、cu rr ent max imum stable cu rr ent LED driver range S hort c ir c uit cu rr ent Manufactu rer minimum specified cu rr ent Manufactu rer m axim um sp ec if ied cu rr entFigure 1 LED driver voltage versus LED driver current operational range v i Open Circuit Voltage minim um stable voltage max imum s

43、table voltage LED driver rating S hort c ir c uit cu rr ent Manufactu rer minimum rating Manufactu rer m axim um rati n g LED driver voltage operational rangeFigure 2 LED driver current versus LED driver voltage operational range 1.4.2 LED Load A combination of LED diodes in series and/or in paralle

44、l with the electrical characteristics of diodes is needed for testing and LED driver output. LED loads are different from resistive loads because they are not linear loads. LED loads are individual LEDs connected in series and/or parallel as needed, with a minimum increment of one LED. Thus, the min

45、imum voltage or current change is limited by the electrical characteristics of one LED. Fine-tuning LED loads may involve adding a small complement of diodes; additional fine-tuning (if still needed) may be provided by a variable resistor. See figure 3. Figure 3 LED loads C82.16-2015 Page 3 2016 Nat

46、ional Electrical Manufacturers Association 1.4.3 DC Ripple Factor The DC ripple factor is the ratio of half the difference between the maximum and minimum value of a pulsating DC to the mean value of this current. NOTE: With low values of the DC ripple factor, it is approximately equal to the ratio

47、of the difference to the sum of the maximum and the minimum value; see www.electropedia.org, reference #551-17-29). 1.4.4 Run-Up Time The run-up time is the interval of time between the application of the current to the LED load from a powered-on driver and the point at which the current reaches a c

48、ondition that is stable. See figure 4. Figure 4 Run-up time 1.4.5 Starting Time The starting time is the interval of time between the application of the line voltage to the loaded LED driver and the point at which the output current flows to the LED load. See figure 5. C82.16-2015 Page 4 2016 Nation

49、al Electrical Manufacturers Association Figure 5 Starting time 1.5 GENERAL CHARACTERISTICS Most LED drivers are designed to operate in a wide range of LED loads; as an example, an LED driver may be designed to operate LED loads from 20W to 70W. LED drivers may be designed to operate under different principles of operation such as constant current, constant voltage, pulse modulated and others. Care to correctly match the LED driver under test and the LED load shall be exercised. When making measurements on LED drivers, it is essential that the length o