AC/DC power supplies dissipate 50% less power
1 min read
TDK-Lambda has launched its next generation of digitally controlled ac/dc medical power supplies which, according to the company, dissipate 50% less power than similar devices.
The single output CFE400M series is available in convection and fan cooled versions. The device combines a 4kVac reinforced input to output isolation with dual fusing and an output to ground isolation of 1500Vac, and meets IEC/EN/UL/CSA 60601-1 Ed 2 & 3 safety approvals for medical equipment. This makes it suitable for body floating type medical applications.
Martin Southam, director of marketing for TDK-Lambda EMEA, said: "There's strong customer demand for compact convection cooled power supplies that deliver their rated power without compromising long term reliability. By utilising our proven digital power conversion know how, 50% less power is dissipated thus ensuring reliable thermal design. The CFE400M is perfect for customers working to ErP or Climate Savers Eco-Design guidelines."
When convection cooled, the device is rated at 300W for operating temperatures up to 40°C (250W at 50°); when fan cooled – either integral quite fan or customer air (1.5m/s) – the power supply is rated at 400W up to 50°C. The CFE400M also has a 450W peak power for up to 10s, for both cooling options.
The device is available in field adjustable 12V, 24V and 47Vdc versions with a 12Vdc/0.25A fan supply. It has a 5V/100mA standby power output or a 5V/sA option. The 100mA option meets the ErP Directive with less than 0.5 standby power consumption and all models meet or exceed Climate Savers Silver level. Other features include high efficiency (94%), remote ON/OFF and remote sense. Potential applications include medical and dental equipment, ATE, automation, broadcast, instrumentation, routers and security networks.
