New Case Size released for TDK Lambda's HWS3000

TDK Corporation announces the introduction of the 3000 watt TDK-Lambda brand HWS3000 programmable AC-DC power supplies in a 270 x 150 x 61mm case size. The nominal output voltages (24V, 48V, 60V or 130V) and output currents are fully programmable (CV/CC) from zero up to their maximum rating. The HWS3000 series is available with an 85 - 265Vac single-phase or three-phase 170 - 265Vac input.

Output programming can be achieved using a serial RS485 interface (MODBus protocol) or analog 1 - 5V or 4 - 20mA signals. These very compact products also feature a variable speed fan with typically 45dB audible noise at <70% load, and a 25°C ambient temperature. The power supplies can be used in a wide range of applications, including test and measurement, semiconductor fabrication, RF amplifiers, laser machining, printing, and industrial equipment.

The HWS3000G can deliver 1500W with a low-line single-phase input voltage (85 to 132Vac) and 3000W at high-line (170 to 265Vac). The HWS3000GT provides 3000 watts from a three-phase input voltage of 170 - 265Vac. Four nominal output voltages, 24V, 48V, 60V and 130V, can be programmed to provide 0 - 28.8V, 0 - 52.8V, 0 - 66V, and 0 - 156V. Up to three units can be connected in series, or ten units in parallel. The output voltage slew rate can be digitally programmed and monitored, along with information regarding cumulative operating time, fault log, and product identification information. Digital programming can be performed without turning the power supply on.

A 5V 2A standby voltage, remote on/off, remote sense, fan fail and power good signals are fitted as standard. With efficiencies of up to 93%, internal heating is reduced, allowing reliable operation in the compact package size. The HWS3000 models can operate in -20°C (-40°C start-up) and up to +70°C ambient temperatures, derating linearly from 50°C to 50% load at +70°C. Both models have a five-year warranty and conservatively rated electrolytic capacitor temperatures for long field life. The output terminals are user-configurable for horizontal or vertical connections.

The input to output isolation is 3000Vac, input to ground 2000Vac, and output to ground 1500Vac. The leakage current is <0.85mA and the maximum operating, transportation and storage altitude is 5000m (2000m for the IEC/EN62477-1 standard).

Safety certifications include IEC/EN/UL 62368-1 and IEC/EN62477-1 (OVC III) with CE/UKCA marking for the Low Voltage, EMC, and RoHS Directives. The units meet EN55032A, EN55011-A and FCC-A conducted and radiated emissions. The series also complies with the EN 61000-3-2 harmonics and IEC 61000-4 immunity standards.

For more information on TDK Lambda’s HWS3000 programmable AC-DC power supplies contact O'Donnell Associates North Inc. - sales@odonnell.com

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TDK Lambda announces additional output voltage models to the 250W rated CUS250M series

TDK Corporation has announced additional output voltage models to the 250W rated TDK-Lambda brand CUS250M series of power supplies in the industry standard 2” x 4” footprint. The full range now covers 12V, 15V, 18V, 24V, 28V, 36V and 48V and is certified to the IEC 62368-1 and IEC 60601-1 safety standards for industrial and medical applications. This includes both Class I and Class II (no earth ground required) installations.

The CUS250M has mechanical configurations that enable convection and/or conduction cooling through the product’s baseplate to provide silent cooling. Applications include medical, home healthcare, dental, test, measurement, broadcast, professional audio and industrial equipment.

The output can be adjusted to accommodate non-standard voltages, either by the factory or using the on-board potentiometer. The CUS250M operates across an 85 to 264Vac input and has a low earth leakage current of less than 150µA - including all tolerances. The touch current is <10µA (Class I) and <70µA (Class II).

In ambient temperatures of -20°C to +45°C the CUS250M can deliver up to 250W conduction cooled without external air. With appropriate derating, operation at up to +80°C is also possible. With 1m/s of external airflow, or the optional integral fan, at +70°C the series can provide an output power of up to 125W. As the efficiency is up to 94%, less internal heat is generated, reducing component temperatures. The average efficiency, measured at 25, 50, 75 and 100% loads, is greater than 91%, and offload power consumption is less than 0.5W when the output is inhibited.

Options for the CUS250M include a 5V 0.1A standby voltage, remote on/off (inhibit or enable), DC OK and AC Fail signals and a choice of open frame, U channel, U channel with cover or top mounted fan mechanical constructions.

The product design reduces electrolytic capacitor heat degradation, including the use of polymer output capacitors that offer a low ESR and high ripple current tolerance. The high-voltage energy storage capacitor is mounted on the edge of the PCB for minimum heat rise. The component layout enables more effective cooling for both convection and forced air applications, enhancing reliability and field life. Careful component layout on the underside of the PCB distributes heat evenly across the base, improving thermal transmission. A unique output terminal/choke combination (patent pending) reduces common mode output noise.

Input to output isolation is 4000Vac (2 x MoPP), input to ground isolation 1500Vac (1 x MoPP) and the output to ground isolation is 1500Vac (1 x MoPP) for B and BF rated medical equipment. Safety certification is to IEC/EN 60601-1, ES 60601-1. IEC/EN/CSA/UL 62368-1 standards and the CUS250M is CE / UKCA marked to the Low Voltage, EMC and RoHS Directives. The series is compliant with IEC/EN 60335-1 and IEC/EN 61010-1, meeting EN 55011-B, EN 55032-B radiated and conducted emissions with significant margins (both Class I and Class II) and complies with the EN 60601-1-2:2015 (Edition 4) and EN 61000-4 immunity standards.

More information on the CUS250M can be found at CUS250M Series Datasheet (tdk.com) or contact sales@odonnell.com for more information. We are here to meet and exceed your power needs!

Main Applications:

• Medical, home healthcare, dental, test, measurement, broadcast, professional audio and industrial equipment.

Key Data:

Contact Sales@odonnell.com for more information on TDK Lambda's CUS products!