Sponsor

Interference Technology

For EMI / EMC Engineers

Sponsor

Troubleshooting Radiated Immunity for Medical Products – Case Study

 

Introduction Companies making medical products have much more stringent requirements now that the new IEC 60601-1-2 (Edition 4) became effective June 17, 2017. One of the many changes included increased radiated immunity requirements in several specific wireless and communications bands (Table 1). Highlights of all the changes are included in Interference Technology’s free … [Read more...]

80A Discrete Bidirectional TVS Diode Array with Lower Standoff Voltages Added to Protect Lower Voltage Power Buses

 

Littelfuse, Inc., the global leader in circuit protection, recently introduced 80A discrete bidirectional TVS Diode Arrays as the latest addition to its SP11xx Series TVS Diode Arrays (SPA® Diodes). SP1103C Series 80A Discrete Bidirectional TVS Diodes offer circuit designers lower standoff voltage options for protecting lower voltage power buses from electrostatic discharge … [Read more...]

Troubleshooting ESD in Floating Medical Grade Circuits

 

Introduction Medical devices must be designed with proper isolation of patients from earth. For that reason all medical products have floating circuits. This means that the circuit ground is isolated from the earth ground. ESD protection in floating circuits with isolated grounds can be very challenging. Sometimes conventional ESD protection methods may not work. It is … [Read more...]

New Extended Temperature COTS Filters Operate at Elevated Temperature Environments

 

ITG Electronics, a leading manufacturer of  Inductors and Transformers in business since 1963, now offers a range of EMI filters for Military, Industrial, Commercial, Telecom and  Medical applications. The Single Stage F1800 and Dual stage F2800 series single phase COTS EMI filters  operate over extended temperature range of  -40°C to +85°C (-40°F to +185°F) for applications … [Read more...]

Photo Etching Thin Titanium Components

 

Tech-Etch specializes in the photo chemical etching of titanium. Because of its low weight, strength and corrosion resistance, titanium is used in everything from jet engines to eyeglass frames. Because titanium is inert and completely biocompatible, it is also used in many medical implantation applications such as maxillofacial and craniofacial reconstruction plates, as well … [Read more...]

Custom Capacitor Assemblies for High Power Requirements

 

Passive Plus, Inc. (PPI) offers Custom Capacitor Assemblies for high power requirements. Typical assemblies are configured in series and/or parallel combinations, producing higher voltage/current handling capabilities, extended capacitance range and tighter tolerances. PPI works with requesting engineers to determine best assembly for their applications. Typical Applications … [Read more...]

Internal, External AC/DC Power Solutions Meet IEC 60601-1-2 Medical Standard

 

SL Power Electronics specialists highlight important medical trends and power solutions for next generation medical devices, helping take medical devices from concept to market. The MU425 family addresses the complex and unique power needs of surgical equipment, home healthcare therapeutic devices, and imaging equipment as well as other critical healthcare applications … [Read more...]

Review of IEC 60601-1-2: 2014 (4th Edition)

 

Introduction IEC 60601-1-2:2014 Edition 4 was published February 2014 and replaces IEC 60601-1-2 Edition 3 published on 2007. It pertains to EMC for medical electrical equipment and medical electrical systems. The European version (EN60601-1-2:2015) is identical to its IEC counterpart with exception of references to the EN versions of the 61000-4-x series and the addition of … [Read more...]

Troubleshooting EFT

 

EFT Phenomenon Recently I tested a medical device for EFT susceptibility. The requirement is that the medical device must be immune to EFT bursts generated per IEC 61000-4-4. Per this standard EFT bursts are applied in four steps. For level 4, steps 1 and 2 are +/-2kV at 5kHz, and steps 3 and 4 are +/-2kV at 100kHz. For each step, these bursts are applied at 300ms interval for … [Read more...]

Industry Sponsors

Sponsor
Sponsor