TDK-Lambda – Efficient new 500W ‘green’ power supplies comply with ErP requirements (GWS500)Mar 20 2012 - Power [More Power Articles]
Latest from TDK Corporation is news of its new GWS500 series of ‘green’ power supplies. Complying with the energy saving requirements of the ErP (Energy-related Products) Directive, the GWS500 AC-DC power supply uses innovative design techniques to combine high efficiency, high power density and low standby power. The GWS500 is well -suited to a broad range of industrial applications, including ATE, automation and instrumentation.
Rated at 500W, the GWS500 combines a 1U form factor with 105mm x 218mm footprint and 90% typical efficiency to achieve a power density of 8.7W/in3. Offered in four models, the GWS500 supplies nominal outputs of 12V (42A), 24V (21A), 36V (14A) and 48V (10.5A). Outputs can be user-adjusted by up to 20% depending on the model type, and the 24V and 36V models have a peak power rating of 600W.
With a flat efficiency curve averaging at 89%, from 25 to 100% load, which exceeds the ErP requirement of 87%, the GWS500 operates from -25 to 70°C with suitable derating. The high power GWS500 is reverse fan cooled (exhale) to mitigate contamination risk.
The GWS500 series from TDK-Lambda has over-voltage, over-temperature and over-current protection (constant current mode for 24V, 36V and 48V models, 12V model in hiccup mode). Models in the GWS500 series also feature a sub-0.5W standby power, 5V/0.3A standby output, remote on/off, DC GOOD signal and a voltage programming function as standard.
All GWS500 models operate from an 85-264VAC input with active power factor correction to ensure EN61000-3-2 compliance. CE marked in accordance with the LV Directive, the GWS500 conforms to EN55022 and CISPR22 Class B conducted and radiated EMC, and meets CSA/IEC60950-1 Ed 2 and UL/EN60950-1 safety approvals, says the company.More news from TDK Lambda