As the awareness for the need for energy efficiency grows, more companies are developing products that reduce the amount of energy needed to operate. One of the latest products in the power supply market is a new range of ac-dc external power supplies from TDK-Lambda. These power supplies meet the EISA, CEC and Energy Star EPS Version 2.0, Efficiency Level V standards and are available with ratings from 100 to 150 W. The DT100-C and DT150-C series feature active PFC (meets EN61000-3-2) and operate from a universal ac input of 90 to 264 Vac (47-63 Hz). Available output voltages include 12 V, 16 V, 19 V, 24 V, 36 V and 48 V.
These external power supplies are packaged in an insulated compact and lightweight enclosure measuring 3.35 in. wide by 6.7 in. long by 1.73 in. high and are convection cooled. The operating temperature range is 0 to +40° C with no derating required. All models are fully isolated (3 kVac, input to output) and meet the Energy Star 2.0 and the California Energy Commission (CEC) Level V efficiency standards.
These units include overvoltage and short-circuit protections and off/no-load standby power consumption of less than 0.50 W as required by Energy Star 2.0 and other green energy initiatives. In addition, these series include UL/EN/IEC60950-1 international safety agency certifications and meet EN55022-B and FCC Class B conducted and radiated EMI standards.
Moreover, these external power supplies feature a recessed IEC320-C14 ac input receptacle and a 3.4 ft long output cable with a molded 4-pin connector. Other output connector types can be special ordered.
Filed Under: Electronics • electrical, Energy management + harvesting, Green engineering, Power supplies