Series of fanless AC/DC power supplies maintains full load capacity

TTI Europe now stocks the LCC1200 series of fully-enclosed, conduction-cooled AC/DC power supplies from Advanced Energy. Rated at 1200W and providing 93.5% efficiency, these power supplies include a thermal baseplate and can provide full output power over a wide operating temperature of -40C to +85C without derating. The target applications for the power supplies incorporate telecommunications antenna and base station equipment, control consoles, and outdoor/indoor signage. A constant current mode is also available for LED and horticultural lighting applications.

Accommodated in a robust metal case, the series is offered with standard input/output connectors or in fully sealed versions with integral cables that provide an IP65 rating against water or dust ingress. Their fanless operation also makes them ideal for environments where acoustic noise or dust disturbance, such as offices or medical facilities, may be an issue.

Operating from a universal 90VAC to 264VAC input, the series can be employed anywhere in the world without adjustment. Comprising four models, the series provides main output voltages of 24VDC, 28VDC, 36VDC, and 48VDC. The main output is adjustable over all models for maximum design flexibility, except the 28VDC model. Each model also offers an extra 5VDC standby output.

Standard features comprise AC OK and DC OK signals, remote inhibit, and differential remote sense on the main output. The power supplies offer overtemperature and output overcurrent protection circuitry, with latching overvoltage protection of the main and standby outputs. The series also sustains active current sharing, permitting parallel connection of up to three units for high current applications.

All models in the series are supplied with a three-year warranty, are fully approved to the IEC 62368-1 ITE safety standard, and carry cUL, CE, UKCA, and CCC certifications. The built-in PMBus interface delivers flexible and comprehensive digital communication with control and monitoring functions for current, voltage, and temperature, as well as reporting fault conditions.

“With Advanced Energy’s LLC1200 series of conduction-cooled AC/DC power supplies, We’ve got the Power!” said Oskar Czechowski, Technical Development Manager for Power, TTI Europe. “While other power supplies require output derating above 55C, the LCC1200 can maintain its full 1200W load capacity across a wide baseplate temperature at up to +85C without forced air, reducing overall system cost. In addition, with its high-power density of 15W/in3, engineers save space in their end-application.”