Affordable basic power supplies with high performance
September 2006
Electrical Power & Protection
The Dimension C-Series power supplies from PULS are affordable basic units comprising an alternative to the feature-rich Q-Series. Corners were cut when it comes to a few features, but not in terms of quality, reliability, ease of operation, small overall size and generous power reserves. In this sense, the same standards apply to the C-Series as to all other PULS products. In the 120 W class, the C-Series units are even smaller than those of the Q-Series and with a specified life expectancy of the electrolytic capacitor of 50 000 hours, are every bit as durable.
The guaranteed power boost of +20% of the rated power is intended to ensure optimal adaptation to fluctuating loads. If the ambient temperature remains below 45°C or with forced ventilation, this performance is even specified for continuous loads. Nor were any compromises made when it comes to limiting the inrush current. This unpleasant side effect of switching power supplies was completely eliminated by means of a new circuit.
The units are equipped with automatic 115/230 V range switching for increased ease of operation and fault avoidance. For the first time, the units are now available in special regional versions that cover either only the 100-120 V or 220-240 V ranges. This made it possible to further reduce costs without other disadvantages in regional applications.
The C-Series includes single-phase units in the 120 W and 240 W performance classes and a 72 W version (24 V, 3 A) will be added by late 2006. The available output voltages are 24 V and 48 V. Due to its favourable price-performance ratio, this series will probably become one of the new standards for general applications.
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