1、 ANSI/CEA Standard Determination of Television Average Power Consumption ANSI/CEA-2037 March 2010 Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE Consumer Electronics Associati
2、on (CEA) Standards, Bulletins and other technical publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining wit
3、h minimum delay the proper product for his particular need. Existence of such Standards, Bulletins and other technical publications shall not in any respect preclude any member or nonmember of CEA from manufacturing or selling products not conforming to such Standards, Bulletins or other technical p
4、ublications, nor shall the existence of such Standards, Bulletins and other technical publications preclude their voluntary use by those other than CEA members, whether the standard is to be used either domestically or internationally. Standards, Bulletins and other technical publications are adopte
5、d by CEA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, CEA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard, Bulletin or other technical publication. This CEA Standard i
6、s considered to have International Standardization implication, but the International Electrotechnical Commission activity has not progressed to the point where a valid comparison between the CEA Standard and the IEC document can be made. This Standard does not purport to address all safety problems
7、 associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. (Formulated under the cognizance of the CEAs R4
8、Video Systems Committee.) Published by CONSUMER ELECTRONICS ASSOCIATION 2009 Technology Phone 800-854-7179; Fax 303-397-2740; Internet http:/; Email IEC Central Office, 3, rue de Varembe, PO Box 131, CH-1211 Geneva 20, Switzerland; Phone +41 22 919 02 11; Fax +41 22 919 03 00; Internet http:/www.ie
9、c.ch; Email pubinforiec.ch 2.2 Informative References The following standards contain provisions that, through reference in this text, constitute informative provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties
10、 to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards listed here. 2.2.1 Informative Reference List ENERGY STAR Program Requirements for Televisions, Eligibility Criteria (Version 3.0) 2.2.2 Informative Reference Acq
11、uisition EPA ENERGY STAR Specifications: http:/www.energystar.gov 2.3 Definitions Television (TV) A commercially available electronic product designed primarily for the display and reception of audiovisual signals from terrestrial, cable, satellite, Internet Protocol TV (IPTV), or other transmission
12、 of analog and/or digital signals, consisting of a tuner/receiver and a display encased in a single housing. The product usually relies upon a cathode-ray tube (CRT), liquid crystal display (LCD), plasma display, or other display device. 3Copyright Consumer Electronics Association Provided by IHS un
13、der license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEA-2037 2.4 Symbols and Abbreviations CEA Consumer Electronics Association CRT Cathode Ray Tube EPA Environmental Protection Agency HDMI High Definition Multimedia Interface IEC International Ele
14、ctrotechnical Commission IPTV Internet Protocol TV LCD Liquid Crystal Display NIST National Institute of Standards and Technology TV Television 2.5 Compliance Notation As used in this document “shall” and “must” denote mandatory provisions of the standard. “Should” denotes a provision that is recomm
15、ended but not mandatory. “May” denotes a feature whose presence does not preclude compliance, and implementation of which is optional. “Optional” denotes items that may or may not be present in a compliant device. 3 Modes of Operation 3.1 Sleep Mode: The lowest power consumption state which cannot b
16、e switched off (influenced) by the user and that may persist for an indefinite time when the appliance is connected to the main electricity supply and used in accordance with the manufacturers instructions. For purposes of this specification, Sleep Mode is defined as the time when the product is con
17、nected to a power source, produces neither sound nor picture, neither transmits nor receives program information and/or data (excluding data transmitted to change the units condition from Sleep Mode to On Mode), and is waiting to be switched to On Mode by a direct or indirect signal from the consume
18、r, e.g., with the remote control. Note: Sleep Mode was referred to as “standby” in ENERGY STARProgram Requirements for Televisions, Eligibility Criteria (Version 3.0). EPA is in the harmonizing future documents with the term, “Sleep Mode”. 3.2 On Mode Power: The product is connected to a power sourc
19、e and produces sound and a picture. 3.3 Disconnected: The product is disconnected from all external power sources. 4 Power Measurement 4.1 General Measurement Conditions: Sleep Mode measurements shall be performed under the conditions described in IEC 62301 Ed. 1.0, Section 4, “General Conditions fo
20、r Measurements”. On Mode measurements shall be performed under the conditions described in IEC 62087 Ed. 2.0, sub clause 5.1, “General measuring conditions”, and sub clause 11.4, “General measurement procedure for On (average) mode” and sub clause 11.6 “On (average) mode testing using dynamic broadc
21、ast-content video signals. The television shall be measured at the standard input voltage and frequency of the country or region in which the power consumption measurement is to be reported. For instance, when reporting power consumption within the United States, the television shall be tested at 11
22、5 volts/60 Hz. 4.2 Measurement Instrument The test instrument used to measure power consumption shall have the following attributes: 4Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-C
23、EA-2037 An available current crest factor of 3 or more at its rated range value, and lower bound on the current range of 10mA or less. The power measurement instrument shall have a resolution of 0.01 W or better for power measurements of 10 W or less; 0.1 W or better for power measurements of greate
24、r than 10 W up to 100 W; and 1 W or better for power measurements of greater than 100 W. In addition, the test instrument should have these following attributes: Frequency response of at least 3 kHz Calibration with a standard that is traceable to the U.S. National Institute of Standards and Technol
25、ogy (NIST) or calibration to a traceable national standard. Capable of integrating energy over any user selected time interval with an energy resolution of less than or equal to 0.1 mWh and integrating time displayed with a resolution of 1 second or less. 4.3 Measurement Accuracy Measurements of pow
26、er of 0.5 W or greater shall be made with an uncertainty of less than or equal to 2% at the 95% confidence level. Measurements of power of less than 0.5 W shall be made with an uncertainty of less than or equal to 0.01 W at the 95% confidence level. Note: For more information about the determination
27、 of uncertainty of measurement, refer to IEC 62301:2005, Annex D. All power figures shall be reported in watts and rounded to the second decimal place. For loads greater than or equal to 10 W, three significant figures shall be reported. 4.4 Measurement Procedure 4.4.1 Settings The device under test
28、 shall be set as originally shipped in manufacturer default settings. For devices where initial installation requires choice of setting profiles (e.g., ENERGY STAR “Forced Menu” mode, see ENERGY STAR 3.0, section 4.E.2.d), the device shall be set to “Home” or standard mode. If the device under test
29、has a CableCARD feature, tests shall be conducted with the CableCARD module slot unpopulated. 4.4.2 Sleep Mode Power Sleep Mode power (Psleep_mode) shall be measured as described in IEC 62301 Ed 1.0: Household Electrical Appliances Measurement of Standby Power. Measurements shall be conducted at fac
30、tory default settings. 4.4.3 On Mode Power On Mode power consumption (Pon_mode) shall be measured as described in IEC 62087 Ed 2.0: Methods of Measurement for the Power Consumption of Audio, Video and Related Equipment, clause 11, “Measuring conditions of television sets for On (average) mode.” The
31、specific method used depends on if the TV has automatic brightness control enabled by default. 5Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEA-2037 6Video inputs used for testing
32、 shall be within 2% of reference black and white levels. If the device under test has an HDMI input, the HDMI input shall be used for display of IEC 62087 test signals during testing. 4.4.3.1 Televisions without Automatic Brightness Control enabled by default For televisions that do not have an auto
33、matic brightness control feature, or that have automatic brightness control that is disabled by default, On Mode power consumption (Pon_mode) shall be Po_broadcast, as tested with the dynamic broadcast content video signal. Pon_mode= Po_broadcast4.4.3.2 Televisions with Automatic Brightness Control
34、enabled by default For televisions that include an automatic brightness control feature that is enabled by default, the device shall initially be tested in a room with a minimum ambient light level of 300 lux at the sensor to obtain the Po_broadcast measurement. A second measurement shall subsequent
35、ly be taken with the device tested in a room with an ambient light level of 0 lux entering the sensor to obtain Po_broadcast measurement. On Mode power consumption (Pon_mode) shall be reported as Pon_mode= ( (Po_broadcast 300 Lux) * 0.55 ) + ( (Po_broadcast 0 Lux) * 0.45 ) Copyright Consumer Electro
36、nics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEA Document Improvement Proposal If in the review or use of this document, a potential change is made evident for safety, health or technical reasons, please em
37、ail your reason/rationale for the recommended change to standardsce.org. Consumer Electronics Association Technology & Standards Department 1919 S Eads Street, Arlington, VA 22202 FAX: (703) 907-7693 standardsCE.org Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Consumer Electronics Association Provided by IHS under license with CEA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-
