Power supplies offer full MoPPs isolation and low acoustical noise

TDK Corporation has introduced the TDK-Lambda brand QS series of single output medical and industrial AC/DC power supplies. Rated at 600W to 1200W output power, these high-efficiency products use low-speed fan cooling with significantly reduced acoustical noise. The series has been certified to both industrial and medical safety standards and are ideal for a broad range of applications, including test and measurement, BF-rated medical equipment, broadcast, communications and renewable energy applications. The devices operate in a wide range from 90VAC to 264VAC input and are available with three standard output voltages: 12V, 24V and 48V. The QS5 produces 600W; the QS5H delivers between 1080W to 1200W with an input voltage of 180VAC or higher and 700W below 180VAC. The QS7 is rated at 1200W over the entire input voltage range. An optional standby/signal can be picked with a selection of one or two 5V standby voltages, unit inhibit or unit enable and a PMBus interface. Overall case dimensions for the QS5 models are 127mm x 63.3mm x 270mm (W x H x D) and 176mm x 63.3mm x 270mm for the QS7. The QS5 has an optional IEC320 input connector, in place of a screw terminal block, for quick and simple connection. The units will work in ambient temperatures of -20C to +70C, derating the output power and output current by 2.5% per degree-C above 50C.