ac to dc power supply efficiency

» Digital Power Catalog DDP600 Mid-Range Medical and Industrial Power Supplies Compact form factor, high efficiency (94% typical), with high peak power capability, the DDP600 series of 600W single output power supplies are suitable for a wide range of industrial and medical applications, as well as LED display and lighting solutions. A high efficiency 400W AC-DC Power Supply, the DDP400 sealed module offers exceptional performance and a host of convenient features. The compact 38 cubic inch IP67 package is 20% smaller than competing 300W modules with minimal thermal or environmental limitations. DDP400 Punched Cover, Open-Frame and U-Chassis Mid-Range AC/DC Power Supplies With typical efficiencies of 94%, and efficiency load profiles that exceed 80 Plus Platinum requirements, the DDP400 series of switching supplies are the most efficient power supplies in their class. DDP400 Front and Top Fan With typical efficiencies of 94% and efficiency load profiles that exceed 80 Plus Platinum requirements, the DDP400 series of switching power supplies are the most efficient power supplies in their class.
High Efficiency 160W AC/DC Power Supply Offering 160W of regulated DC power from an industry standard 2×4×1 inch open-frame footprint, the SFA160 series consumes 46% less space in a system, enabling designers to offer smaller systems or to integrate more advanced features into their systems without compromising on system size. By converting energy at >90% efficiency, the SFA160 generates less heat facilitating high reliability, space saving designs. High Efficiency 365W AC/DC Power Supply Offering 365W of regulated DC power from an industry standard 3 x 5 x 1.28" inch open-frame footprint, the SFA350 consumes less space and offers higher power efficiency than competing power supplies. Modular 600W AC/DC Power Supply The RCB600 is a modular, configurable power supply offering unrivalled performance and flexibility. Delivering 600W from a 600g, 5 × 3” 1U package, the RCB600 is the smallest commercially available configurable power solution. Each system consists of a main chassis assembly with up to eight (8) isolated outputs.
The series carries UL60950 and EN60950 safety approvals and complies with EN61000-3, EN6100-4 and EN55022-B EMC standardsac unit arizona Modular 1.2kW AC/DC Power Supplycarrier hvac parts cross reference The RCB1200 is a configurable power supply with a total output power of 1.2kW that can support up to 16 isolated outputs in any combination of 5V, 12V, 24V, 48V and the new dual output modules, allowing sytem designers to create a custom power supply suited to space constrained environments where high reliability and high energy efficiency are key.my window ac unit keeps freezing The RCB1200 features active PFC, redundancy and external control options in a ultra small form factor. AN-19 - TOPSwitch Flyback Power Supply Efficiency
You are hereHome Products Critical Power Embedded Power Previous Generation AC-DC Power SuppliesWHITE PAPEREnergy Efficiency Levels Mean Well GS and GST Series Power Supplies Energy efficiency levels have been established with strict requirements over the years to combat our growing consumption of energy. Mean Well has always demonstrated great quality and performance in their power supplies to be in compliance with these energy efficiency regulations regardless of the series. Their popular GS series complies with Energy Level V, and the latest GST series meets the Energy Level VI. We'll go over the Level V and VI regulations and the benefits from upgrading to the latest standards. GS Regulated Switching Table Top Power Supply GST AC-to-DC Switching Table-Top Power Supply Energy efficiency levels correspond to specific minimum active and no load quantities. For energy Level V on standard AC-DC models greater than 6 volts, the no load power requirement from 0-49 watts is less than 0.3W and from 50-250 watts is 0.5 watts.
When active, the efficiency requirement from 50-250 watts is greater or equal to 87%. For 1-49 watts, [0.0626 x ln(Power)] + 0.622 is the formula, where power is the wattage listed on the label of the power supply. With less than 1 watt, the formula is 0.48 x Power + 0.140. The GS series meets all these requirements. Energy Level V standard is enforced in the European Union (EU). While the US and Canada currently enforce Level IV, Level V meets these regulations. It is a direct response to the needs of the original equipment manufacturers (OEMs) that ship globally to have a universal power supply platform. Otherwise, they may face expensive fines as different countries or regions endorse different standards. Level I-V full performance thresholds Used if no criteria was met ≤ 10W: ≤ 0.5W of no load power 10-250W: ≤ 0.75W of no load power ≤ 1W: ≥ Power x 0.49 1-49W: ≥ [0.09 x ln (power)] + 0.4949-250W: ≥ 84% 0-250W: ≤ 0.5W of no load power
≤ 1W: ≥ Power x 0.50 1-51W: ≥ [0.09 x ln (power)] + 0.50 V - Low Voltage AC-DC Models (< 6 Vout) 0-49W: ≤ 0.3W of no load power 50-250: ≤ 0.5W of no load power ≤ 1W: 0.497 x Power + 0.067 1-51W: [0.0750 x ln (power)] + 0.561 51-250W: ≥ 86% V - Standard Voltage AC-DC Models (> 6Vout) 0-49W: ≤ 0.3W of no load power 50-250: ≤ 0.5W of no load power ≤ 1W: 0.48 x Power + 0.140 1-51W: [0.0626 x ln (power)] + 0.622 Energy Level VI not only has more regulations that vary from amount of power to type of power supply compared to the current Level V, but it also expanded the range of products it covers to include multiple output voltage power supplies and those above 250 watts. The United States Department of Energy (DOE) first published these strict standards for external power supplies (EPS) in February 2014. They mandated compliance for Level VI two years later on February 10, 2016 that cover EPS manufactured in or imported to the US or Canada.
The EU is going through revision discussions but should be expected to harmonize with most of the US standards. The new regulation also added a classification as direct or indirect operation. Indirect operation EPSs are those that cannot operate the end system without the assistance of a battery, while a direct operation EPS can perform without battery help. Level VI regulation only covers direct operation EPSs, but indirect power supplies will only have to follow current EISA 2007 efficiency limits. There are a few exceptions to level VI for EPS products that do not apply, which are medical devices that require Federal Food and Drug Administration listing or AC-DC power supplies with less than 3 volts and greater than or equal to 1000 milliamps that charge the motor operated battery. The GST series are one of many from Mean Well to meet the rigorous criteria. The following tables display the new performance thresholds: MINIMUM AVERAGEEFFICIENCY IN ACTIVE MODE(EXPRESSED AS A DECIMAL)
MAXIMUM POWERIN NO-LOADMODE (W) Single-Voltage External AC-DC Power Supply1, Basic Voltage Pout < 1W 1W < Pout 49W 49W < Pout 250W Pout > 250W 0.5 x Pout + 0.16 0.071 x ln (Pout) - 0.0014 x Pout + 0.67 Single-Voltage External AC-DC Power Supply2, Low Voltage 0.517 x Pout + 0.087 0.0834 x ln (Pout) - 0.0014 x Pout + 0.609 Single-Voltage External AC-AC Power Supply3, Basic Voltage Single-Voltage ExternalAC-AC Power Supply,Low Voltage Multiple Voltage External Power Supply4 Pout < 1W 1W < Pout 49W Pout > 49W 0.497 x Pout + 0.067 0.075 x ln(Pout) + 0.561 1. Single-Voltage External AC-DC Power Supply: An external power supply that is designed to convert line voltage AC into lower-voltage DC output and is able to convert to only one DC output voltage at a time. 2. Low-Voltage External Power Supply: An external power supply with a nameplate output voltage less than 6 volts and nameplate output current greater than or equal to 550 milliamps.
Basic-voltage external power supply means an external power supply that is not a low-voltage power supply. 3. Single-Voltage External AC-AC Power Supply: An external power supply that is designed to convert line voltage AC into lower-voltage AC output and is able to convert to only one AC output voltage at a time. 4. Multiple-Voltage External Power Supply: An external power supply that is designed to convert line voltage AC input into more than one simultaneous lower-voltage output. While the requirement date for Level VI, it's still possible to ship legacy products as long as the manufacture date is prior to the transition date. Labeling requirements are still mandatory to meet the international protocol as the current Level V standard for EPSs. There are benefits from upgrading from Level V to VI, saving energy, money, and the environment. Under the regulation, efficiency is increased by about five percent. Pretty significant in power savings when you take into account the millions of adapters in the market.
With a greater reduction of power consumption, energy crises can be averted or reduced considerably. It also results in a greater savings in money owed to the utility companies. The Environmental Protection Agency (EPA) estimates that over the past decade, consumption has reduced by about 32 billion kilowatts, saving 2.5 billion dollars annually. At Level IV, it was 0.5 watts efficiency and goes down to 0.1 for Level VI, which makes the money saved plausible. It also reduces CO2 emissions by more than 24 million tons a year for less pollution to the environment. There are no downsides to upgrading, so exchange those GS supplies for the GST equivalent, and with more efficient technology, it will extend longevity as seen with longer warranties on the data sheet. The design of these EPSs have been clearly redefined for better power ICs and transformers to fit the new efficiency benchmarks. Mean Well has been ahead of the game, as well as their customers for meeting these standards before the transition date.