Design News, February 2013

Issue link:

Contents of this Issue


Page 64 of 99

tion segments ranging from Bluetooth headsets, smartphones, and tablets that require lower operating voltages to white goods, small home appliances, TV, monitors, and printers which require high SNR for robust touch performance. These devices are also for enabling wake-on approach features in applications such as PC peripherals. The CY8C20xx7/S CapSense controller family is currently in production in 16-QFN, 30-WLCSP, 24-QFN, 32-QFN, 48-QFN, and 16-SOIC packages. The CY8C20xx7/S Controllers can be easily evaluated using the AEK-CY8C20xx7 QuietZone Starter Kit from Artaflex. Based on the CY8C20247S-24LKXI, the $9.99 (US) Starter Kit allows you to develop proof of concepts by directly connecting to the target design boards. Cypress Semiconductor Digitally ControlleD 300W-400W MeDiCal PoWer SuPPlieS New controllers are suited for medical and dental applications, as well as for other applications including ITE and laboratory/process control equipment TDK Corp.'s TDK-Lambda CFE400M series are digitally controlled, 300W to 400W single output, medical power supplies that are available in convection and fan-cooled versions. Combining a 4kVac reinforced input-to-output isolation with dual fusing and an output-to-ground isolation of 1,500Vac, the CFE400M meets IEC/EN/UL/CSA 60601-1 Editions 2 and 3 safety approvals, suitable for medical and dental applications. In addition, these units are well-suited for other applications including ITE and laboratory/process control equipment. When convection cooled (without fans), the CFE400M is rated at 300W for operating temperatures from 0C to 40C (250W to 50C). When fan cooled with either an integral quiet fan or customer forced air (1.5 m/s), the power supply is rated at 400W from 0C to 50C. These units also have a 450W peak power rating for up to 10 seconds for both cooling options. Available in field-adjustable 12V, 24V, and 48V DC versions with a 12V DC/0.25A fan supply, the CFE400M has a 5V/80mA standby output or a 5V/2A option. The 5V/80mA option meets the ErP Directive with less than 0.5W standby power consumption. All models meet or exceed the Climate Savers Gold Level. Other features include high efficiency (94 percent typical), remote On/Off and remote sense. These features combined with a small 7.0 inch x 3.94 inch x 1.6 inch size make the CFE400M well-suited for many types of medical/dental equipment and other high integrity applications including laboratory, process controls, ATE, automation, broadcast, instrumentation, routers, servers, and security networks. The interleaved boost converters, which operate at 180 degrees to each other, halve the current through each PFC choke and reduce the ripple current in the boost capacitor — this in turn reduces the temperature of these components and extends their life. Below half load, one converter is disabled, reducing losses and increasing efficiency. At lower loads (around 50W), the PFC burst mode function operates, MOTION CONTROL SOLUTIONS FOR MEDICAL APPLICATIONS... INDUSTRIAL SHOCK ABSORBERS HYDRAULIC DAMPERS GAS SPRINGS Available in 316L stainless steel TUBUS ELASTOMER BUMPERS ROTARY DAMPERS ACE products offer controlled motion for MRI units, mail order drug dispensing machines, surgical scrub dispensing machines, medical beds, lighting equipment, test equipment lid control, laboratory cabinets and ambulance gurneys. 23435 Industrial Park Drive Farmington Hills, MI 48335 P: 800.521.3320 / F: 248.476.2470 e-mail: f e b r uary 2013 m e d i c a l / a s u p p l e me nt to de s ign ne ws M15

Articles in this issue

Links on this page

Archives of this issue

view archives of DesignNews - Design News, February 2013