50W power supply designed for ultrasound equipment

15th January 2014

GlobTek, Inc.

Staff Reporter

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Designed for ultrasound equipment applications, the 50W internal power supply from Globtek meets the latest North American national standard ANSI/AAMI ES60601-1 (3rd Edition). The dual output switcher features a programmable variable 10VDC at 2.6A to 100VDC at 0.26A output, as well as 12V 2A regulated output typically used for housekeeping or PWM. For applications employing 2 units in parallel, one or both may be wired for negative voltage such as -10V to -100V. The output voltage control method is 0VDC to 10VDC, with control input impedance at least 10K OHM.

This device family features regulated output with low ripple, built-in over current, short circuit, over current, and thermal protection as well as low leakage, low ripple, and high efficiency. The product is suitable for most applications requiring DC power, with common applications including medical devices, portable medical treatment/monitoring equipment and instruments, hospital equipment and fixtures, and as a power source for Li-Ion battery chargers. Customized enclosure colors, housing designs, output cord types and lengths, as well as customized packaging are available upon request.

As mentioned, the model meets the North American national standard ANSI/AAMI ES60601-1 (3rd Edition), specifically ANSI/AAMI ES60601-1 Issued: 2006/03/09: 2005 Version (R2012) with AMD C1: 2009, AMD C2: 2010 & CAN/CSA-C22.2 No.60601-1 Issued: 2008/02/01; with COR 2:2011/06/01). The model is also designed to meet CB and Semko to IEC 60601-1: 2005 + CORR. 1 (2006) + CORR. 2 (2007) and group and national differences for the CENELEC countries.

The unit is CE Mark Certified to EN 60601-1-2:2007, EN 55022:2010, EN 61000-3-2:2006+A1:2009+A2:2009, EN 61000-3-3:2008, and EN 55024:2010.. The unit is 2MOPP. 2MOPP (means of patient protection) refers to two independent systems of insulation protecting the patient from dangerous voltages. A single insulating component can get this rating based on extensive testing. 2MOPP certifications exceed the requirements of 2MOOP and this unit may be used for either application. Medical grade (60601-1 certified) power supply has an input from 90-264VAC 50-60Hz. The miniature medical grade (60601-1) universal input internal open frame switching power supply model GTM93038-50VV-X.X-FW is available in Class I via a Molex 26-60-4030 Connector utilizing 3 circuits. The unit may be configured with wiring harnesses and customer specified connectors to eliminate extra assemblies and labor cost during final system assembly. Output is provided via Molex 26-60-4060.

The power supply can be supplied with customer designated input and output plugs, many of which are stocked at GlobTek New Jersey USA and Suzhou China locations. The power supplies comply with IEC 60950-1 2nd edition or IEC60601-1 3rd edition and have certifications by UL (North America), C-Tick (Australia/New Zealand), Iram (Argentina), BSMI (Taiwan), CB (Worldwide), CCC (China), Demko (Europe), eK (Korea), NRCAN (Canada), Spring (Singapore), SIQ (Europe), Gost (Russia), Singapore (PSB), and UkrSEPRO (Ukraine). They also comply with Canadian Nrcan efficiency requirements as well as FCC/VCC/CE emc requirements.