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Innovative AC-DC converters optimise power supply in latest technologies
The latest series of AC-DC converters from Mornsun, the LM series, meet the power management demands of dynamic market sectors, such as smart meters and network security as well as serving the power needs for many, varied household appliances.
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he LM series is available from power specialist Relec Electronics on extremely short lead times. All six models in the LM series are designed to accelerate the design cycle and shorten time to market in some of the most competitive industry sectors. Typical applications include those with harsh environmental conditions, such as industrial control and automation, machinery and instrumentation, as well as cost-sensitive applications in network security, the smart grid, Internet of Things (IoT) applications, as well as building control and household appliances. The LM series comprises the LM15, LM25, LM35, LM50, LM75 and LM100 models. There are six power ranges available (15W, 25W, 35W, 50W, 75W and 100W) with outputs from 5V to 48V. All units have a universal input from 85V to 305Vac and are compliant to EN55032 class B for EMC.
The LM series AC-DC converters are available across six power ranges from 15W – 100W. The cost-sensitive converters are available at lead times as low as just eight weeks.
Typical applications
The versatile AC-DC converters serve the power requirements of established applications, such as industrial process control and telecommunications, to energy- efficiency systems, such as LED street light control and electricity monitoring. They can be used for household appliances in a local network to create an energy saving, so-called ‘smart’ home. The LM series is also ideal for network security, consisting of multiple cameras and sensors. Here, the AC-DC converter provides efficient switching control for quick responses, minimising delays and optimising network operation. Smart metering is a particular area of interest for the LM series. According to Mordor Intelligence, the smart meter
12 November 2021
market is growing, with approximately 136.45 million smart meters shipping worldwide in 2020. This figure is expected to reach 198.53 million units by 2026, for a CAGR of 6.6% 2021–2026.
Around the world, utility companies are adopting smart meters for electricity, gas and water supplies. Consumers can track their usage rates in real-time to use supplies responsibly, for example to identify a tap left running or to ensure appliances are switched off and not draining
power. The same smart meter can be used by the utility supplier to track usage, for example to anticipate periods of high demand.
These meters rely on advanced power supply design, to integrate sophisticated communications interfaces to display the meter reading. They are expected to process data even in harsh environments outdoors as well as within the home and have to be immune to strong magnetic fields to maintain continuous operation.
Energy-efficient operation The LM series outputs are all fully regulated and have low output ripple and noise characteristics. They are designed to meet energy-efficiency standards with a low standby power of <0.5W.
Most household appliances use DC input, which means a reliable AC-DC converter is required for electronic equipment with digital displays, such as PCs, TVs, induction cookers – and smart meters - and any other mains-powered electronics devices. The AC-DC converter
Components in Electronics
ensures the appliance is able to withstand high input voltages while consuming lower power in operation.
Despite the cost-efficient pricing, the manufacturer maintains quality and performance. All products are approved to international safety standards including EN/UL61558-1 (industrial safety for power supplies and transformers), EN/UL62368-1 (IT and AV equipment) and EN/UL60335 (household appliances).
All models have 4000Vac input to output isolation and are designed around input over-voltage category III. Operating temperature ranges from -30 to +70°C under convection cooling conditions. The LM series is able to operate in harsh environments and can withstand 5G vibration, as well as altitudes up to 5,000m.
All units are supplied with perforated cases and terminal covers and come with a three-year manufacturer’s warranty. Relec also offers the option for conformally coated units and wider customisation, on request. Relec Electronics is a specialist in power conversion and display products,
representing leading brand names including Mornsun in power conversion alongside Bel Power, Chinfa, Cotek and Premium with key display partners, Digiwise and RockTouch.
For over 40 years, Relec Electronics has worked closely with key suppliers and specialises in a wide range of industry sectors, including automotive, industrial, transportation, instrumentation and defence.
A team of dedicated engineers is ready to support customers throughout the design process.
The company carries stock of all standard modules and accessories for next day delivery.
Relec’s team of specialist advisers can refine an initial specification for a given application to include bespoke features to meet the needs of a particular design or project.
In December 2020, Relec Electronics became been a UK subsidiary of Gresham Worldwide.
www.relec.co.uk www.cieonline.co.uk
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