100-W supplies target medical applications

The ZMS100 2 x 4-in. medical and ITE certified power supplies target hospital, clinical, dental and home-based medical applications, as well as professional broadcast, test, measurement and audio equipment. The supplies can operate with or without forced air cooling. They operate from a universal input of 85 to 264 Vac, have EN61000-3-2 compliance, and are suitable for Class I or Class II (no ground connection) applications.

The power supply design maximizes electrolytic capacitor lifetime by reducing output capacitor ripple current and internal heating. The supplies have a 3-year warranty, and are available with 12-, 15-, 24-, 36- or 48-V outputs. User adjustment of -5/+10% accommodates non-standard voltages.  The series provides up to 80-W output power convection cooled, or 100-W with 0.7-m/s airflow at 50^o C ambient (70^o C maximum with appropriate de-rating). Typical efficiencies are 90%, and with an average efficiency rating of 87%.