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The Necessity for LVDC Power in Home Entertainment

The Necessity for LVDC Power in Home Entertainment. Michael Stelts, IEC TC100. 1. 1. Agenda. Home entertainment runs on DC power IEC work on LVDC Panasonic’s perspective. Multimedia Products Run on DC. External AC/DC converter (AC adapters). Internal AC/DC converter.

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The Necessity for LVDC Power in Home Entertainment

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  1. The Necessity for LVDC Power in Home Entertainment Michael Stelts, IEC TC100 1 1

  2. Agenda Home entertainment runs on DC power IEC work on LVDC Panasonic’s perspective

  3. Multimedia Products Run on DC External AC/DC converter (AC adapters) Internal AC/DC converter Internal/External AC/DC converter with Battery

  4. DC Power for Products Saves Energy Grid Distribution Equipment Equipment ＡＣ Utility ＡＣ１2０Ｖ AC wiring Low ＤＣ P.S. ３0％ Loss Equipment ＤＣ ＡＣ Utility ＡＣ１2０Ｖ efficient converter DC wiring Low ＤＣ 8%Loss Ps converter 2%Loss AC adaptors for each product are eliminated Conversion loss is decreased by batch feeding DC power

  5. Small Efficiency Improvements Matter 115M US households (Census Bureau estimate) 8hr/day US household viewing (OECD, 2005) 180W 40” LCD (Sony, 2011) Roughly 166 GW·hr/day consumed by US TVs. If DC distribution saves 8%, that’s 13 GW·hr/day. Nearest power utility to meeting: Potomac River Station Nameplate capacity = 514MW Output/day = 12.3GW·hr/day Energy savings > plant output

  6. Power Generation is Migrating to DC • Renewable energy systems • Solar power • Fuel cells • Reserve Power • Home battery storage • PEV storage Household generation uses DC Household products use DC

  7. DC Sources Create Greater Efficiency Now: Many AC/DC converters Energy Generators AV Equipment DC⇒AC AC ⇒DC DC ⇒AC AC ⇒DC AC ⇒DC AC ⇒DC AC ⇒DC Battery AC ⇒DC Goal: Direct DC distribution AV Equipment Energy Generators AC ⇒DC Battery DC AC

  8. LVDC for Entertainment Systems 42” LCD:188W DVD:28W (energy saving efficiency catalogue, METI, Japan) • Upper limit = 60V to eliminate shock hazard* • Lower limit = 24V for SSL lighting** • High voltage needed for longer wire runs Example home entertainment system • 1.6A @120VAC • 4.5A @48VDC • 9.0A @24VDC • 43A @5VDC *IEC 60065, **EMerge Alliance specification

  9. 48VDC is the Sweet Spot 42” LCD:188W DVD:28W (energy saving efficiency catalogue, METI, Japan) Avoids shock hazards Maximize length of wiring runs Easily create 2 x 24V busses Home entertainmentrunning at 48V, 4.5A

  10. DC Distribution Infrastructure Infrastructure for low power equipment AVequipment PV DC Distribution with high-efficiency AC/DC converter Voltage：48V or less DC Outlet Battery other equipment Infrastructure for high power equipment Voltage：300V-400V White goods, etc. AC Infrastructure (existing)

  11. More LVDC Benefits Opportunity for common worldwide standard Products can be smaller AC adaptors can be eliminated Improved safety – no shock hazard Smaller carbon footprint

  12. Home Entertainment Summary • Home entertainment runs on DC power • Standardization creates great benefits • One plug worldwide • One common input voltage • Reduced shock hazard • Small efficiency improvements are significant,due to the number of entertainment products • Efficiency significantly reduces carbon footprint • Eliminates wall warts and the waste they create

  13. IEC Work on LVDC

  14. IEC 62360 (ISDB) IEC 62216 (DVB) IEC 62002 (DVB-H) IEC 60728 series (Cable system) IEC 61016 (D1) IEC 61189 (D2) IEC 62071 (D7) IEC 62141 (D16) IEC 62289 (D10) IEC 62336 (D11) IEC 62330 (HD-D5) IEC 62447 (D12) IEC 62261 (TV Metadata) Professional IEC 60107 series (TV) IEC 60268-5 (Loudspeaker) IEC 60315 series (Radio) IEC 61883 (Digital AV I/F) IEC 62229 IEC 62448 (e-Book) Consumer IEC 61606 series (Audio measurement) IEC 60908 (CD) IEC 61606-4 (PC audio) IEC 62389 (DVD player measurement) IEC 61909 (MD) IEC 61966 series (Color management) IEC 60958, 61937 (Digital Audio I/F) IEC 62318, 62328 (Multimedia Home server) IEC 62227 (DRM) IEC 61834 series (DV format) IEC 61603 (IR) IEC 60268 series (Audio System) IEC TC100 – Scope and Standards Audio, video and multimedia systems and equipment

  15. LVDC System (in the IEC System) Wiring (TC23) Battery (TC21) Fuel Cells(TC105) Appliances (TC59) Lighting (TC34) PV (TC82) EV (TC69)

  16. IEC Addressing LVDC Today Standardization Management Board Strategy Groups Technical Committees TC100AV & multimedia SG4LVDC TC69 Electrical Installation TC59 white goods TC23 Electrical accessories SG4 is responsible for LVDC strategy TC100 is responsible for LVDC in multimedia equipment

  17. Collaboration between TC100& TC59 SMB TC SG TC100 (AV equipment) SG1 SG2 TG for SG4 Collaboration SG3 Contribute to SG4 SG4 (LVDC) TC59 (White Goods) SG5 AHG for SG4 IEC TC100 Task Group (TG)for SG4 + TC59 Ad hoc group (AHG) for SG4 = Collaboration on contributions to SG4

  18. AC Adapter Standardization in IEC TC100 PT 62700 is developing an LVDC power supply standard • Scope • Unify AC/DC adapter for Laptop PC by defining DC voltage and its connector shape. • Benefits • Fewer AC adaptors is good for the environment • Reduce product cost by reusing adapters • Simplifies sales and inventory • PT 62700 is important work; but, it also demonstrates a need for the long-term solution – LVDC

  19. Difficulties in Standardizing AC Adaptors • AC adaptors are designed for specific products, creating an extra layer of complexity • Matching in-rush current of product to adaptor • IEC 60950-1 may be insufficient for leakage current • AC adapter temperature • EMC fluctuations as load changes • Harmonizing safety standards • Some manufacturers used the same AC adaptor on products for years, slightly reducing the benefit • By standardizing LVDC, everyone can design their products to one common power source

  20. Country Ｊａｐａｎ ＵＳＡ Ｃｈｉｎａ Ｆｒａｎｃｅ Ｇｅｒｍａｎｙ Ｉｔａｌｙ ＵＫ Domestic Voltage １００Ｖ １２０Ｖ ２２０Ｖ ２３０Ｖ Domestic Frequency 50 60 ６０ ５０ ５０ Domestic Current 15 10 16 １６ １３ Domestic AC socket IECis an Ideal LVDC Standards Venue • Experts in every area (Technical Committees) • Opportunity for a common worldwide standard • Common safety practices • Fewer connectors • Fewer voltages • One frequency

  21. LVDC Perspective

  22. Panasonic Corporation in brief • Net Sales: $100B (approx.) • Business Segments • Digital AV & Networks • Home Appliance • Components and Devices • Panasonic Electric Works (PEW) • PanaHome • SANYO

  23. LVDC is for more than TVs AC infrastructure Heater Grid AC Cooker DC low-power infrastructure Solar System Distributor ＬＥＤ Fan PC TV Electric Works Electric Works Electric Works BD Electric Works Wire TEL Fuel cell System DC high-power infrastructure Battery Air Conditioner Refrigerator

  24. UC San Diego

  25. Kasai Green Energy Park

  26. Green Energy Park LVDC Project DC power distribution directly from PV to PC and LED Proving test in Kasai, West Japan

  27. Eco ideas House, Tokyo

  28. Eco Ideas House LVDC Project AC/DC hybridwiring system Reducing losses cause byAC/DC conversions eco ideas HOUSE in Tokyo

  29. Panasonic Approach to LVDC • LVDC is not just for home entertainment… it is needed throughout the home. • Panasonic is considering LVDC for all these businesses: • AV equipment • Home appliance • Lighting • PV • Battery • Electrical distribution and wiring • Home construction

  30. End

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