Welcome to BEAR Power Supplies
Call BEAR at 1-800-551-2327  
  HOME     |    ABOUT US    |     PRODUCTS    |     APPLICATIONS    |     APP NOTES    |     CERTIFICATIONS     |     PRICING    |    NEWS & ARTICLES   |  CONTACT US    

BEAR Power Supplies for medical devices

Ultra-low leakage current for Type CF medical equipment
CE marked, TUV tested for safety in medical devices

BEAR excels at innovative, high-reliability custom power supplies for medical instruments. We design and produce medical power supplies used in diagnostic instruments and patient care devices, from primary care physician offices to operating rooms.

Our innovative isolation techniques yield leakage current of less than 5μA, exceeding the requirements for Type CF-rated medical devices.

We excel at customization, even for low volumes: non-standard output voltages, unusual form factors to fit precise size and configuration constraints, and compact sizes for portable medical devices.

We have the manufacturing flexibility and capacity to support both low- and high-volume production.

We are able to comply with medical device manufacturers' Quality Processes, supporting requirements such as Failure Mode Effects Analysis (FMEA) and lot traceability of components. We have successfully passed quality audits by several of the world's largest medical device manufacturers.

All BEAR power supplies are tested to medical equipment safety and EMC standards including UL, IEC, CAN/CSA and EN. 


Features of BEAR power supplies for medical devices

  • Low leakage currents - as low as 5μA for custom power supplies
  • Very quiet outputs
  • Low conducted and radiated noise for sensitive medical instruments
  • Low turn-on inrush current for fewer nuisance fuse failures and less stress on the converter for longer power supply life 
  • High reliability in critical life-saving instruments
  • Compact size for smaller, more portable systems
  • High efficiency - no need for a cooling fan - resulting in smaller, quieter systems
  • Remote on/off (some models) allows you to design a front panel power button without routing line voltages to the front of the equipment
  • Operation over international voltage ranges
  • Medical certification testing 


Certification testing

All BEAR Power Supplies undergo the following certification testing for medical instruments: 

  • UL2601-1 Medical Electrical Equipment: General Requirements for Safety
  • IEC 601-1/A2 Medical Electrical Equipment: General Requirements for Safety
  • CAN/CSA-C22.2 (No.601.1-M90) Medical Electrical Equipment, Part 1: General Requirements for Safety and Collateral Standard: Safety Requirements for Medical Electrical Systems
  • EN 60601-1-2 EMC Standard for Medical Devices including:
    o EN55011 Conducted and Radiated Emissions 
    o EN 61000-3-2 Harmonics 
    o EN 61000-3-3 Flicker 
    o EN 61000-4-2 Electrostatic Discharge 
    o EN 61000-4-3 Radiated Immunity 
    o EN 61000-4-4 Fast Transient Burst 
    o EN 61000-4-5 Surges 
    o EN 61000-4-6 Conducted Immunity 
    o EN 61000-4-8 Power Frequency Magnetic Field 
    o EN 61000-4-11 Voltages Dips and Interrupts 

See the certifications page for a complete list of our certifications testing.


Learn more about our expertise

Read our article, Designing Power Supplies for Portable Devices, in Medical Design magazine



Contact us

Allow us to quote on your custom medical power supply needs:




See also: our 30 Watt standard power supply for medical

 This 30W standard AC/DC converter meets medical standards.


Custom medical power supply examples

75 Watt dual-output AC/DC medical power supply with ultra-low capacitance on the CF-rated output

40 Watt AC/DC CF-rated medical power supply features a power loss alarm circuit

Compact dual-purpose converter powers a 15 Watt  LED and a cooling fan

Universal input, 5 output AC/DC and AC/AC converter powers a multi-function diagnostic system

BEAR custom "wall wart" for medical

12 Watt custom AC/DC "wall wart" for hospital use

660 Watt custom power supply with 5μA leakage current for Type CF equipment

60 Watt custom AC/DC converter for a portable medical instrument

  2006-2014 Bear Power Supplies  All Rights Reserved.  Specifications are subject to change.|  Contact Webmaster | Site Map