Converters simplify development of safety-critical medical devices

5th April 2019
Source: XP Power
Posted By : Alex Lynn
Converters simplify development of safety-critical medical devices

A new range of 20 Watt DC/DC power modules with international agency approvals for medical/healthcare applications have been introduced by XP Power. The series is suitable for all medical applications and particularly intended for use where the DC/DC converter provides a reinforced (two MOPP) safety isolation barrier, including patient contact and patient vicinity applications.

Modules in the JHM20 series are certified by both UL & TUV and carry all international approvals including IEC60601-1, EN60601-1 and ANSI/AMMI ES60601-1 for medical safety. This certification, and with the CB report including risk management, allow designers to use them for critical safety barriers with confidence, while reducing the time and cost associated with the end equipment approval.

Suitable for direct patient contact, the modules have a maximum of just 2.5A of patient leakage current and offer two Measures of Patient Protection (MOPP) at a 250VAC working voltage, ensuring patient and operator safety.

The JHM20 series comprises a total of 18 modules, offering 20 Watts of power in a compact 50.8mmx25.4mm PCB-mount footprint. The 2:1 input range offers flexibility with nominal input voltages of 12, 24 and 48VDC. Isolated, fully-floating, single and dual output versions are available at five, 12 and 15VDC, allowing the provision of single rails of 24 and 30VDC. All single outputs are simple to trim by 10% via a single external resistor.

The modules offer excellent levels of efficiency and operate from -40 to +80°C, delivering full power at temperatures up to +60C allowing use in challenging applications. A wide range of protection mechanisms such as short circuit and overload are included to protect both the power module and the system load. The case is made from a self-extinguishing UL94V-0 material.

JHM20 modules are certified to meet the EN55011 Level A standard for EMC emissions without the need for any external components. It is also certified to IEC60601-1-2 Ed. 4 for EMC immunity. These pre-certifications ease the task of the designer when submitting for system-level approvals.


You must be logged in to comment

Write a comment

No comments

Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

EMO Hannover 2019
16th September 2019
Germany Hannover
Women in Tech Festival 2019
17th September 2019
United Kingdom The Brewery, London
European Microwave Week 2019
29th September 2019
France Porte De Versailles Paris
HETT 2019
1st October 2019
United Kingdom EXCEL, London
World Summit AI 2019
9th October 2019
Netherlands Taets Park, Amsterdam