Medical Device Power Solution

Medical Devices Application

Description

IEC 60601-1 compliant power system for patient-connected medical equipment

Core Advantages

Patient Safety 2xMOPP (Means of Patient Protection) isolation provides redundant protection systems for patient-connected equipment.

Low Leakage Leakage current below 100μA meets CF (cardiac floating) application requirements for direct patient contact.

High Isolation 4000VAC or higher isolation voltage provides substantial safety margin for medical applications.

EMC Compliance Meets EN 55011/CISPR 11 Class B for medical environments with minimal EMI emissions.

Compact Design High power density enables portable and compact medical device designs without compromising safety.

Recommended Bill of Materials (BOM)

Item	Part Number	Description	Quantity	Datasheet
1				📄 Download
2				📄 Download

Applications

Patient monitors

Diagnostic equipment

Infusion pumps

Ventilators

Surgical equipment

Technical Specifications

input Voltage

85-264VAC or 12V/24VDC

output Voltages

24V, 12V, 5V, 3.3V

total Power

Up to 40W

isolation

4000VAC (2xMOPP)

leakage Current

<100μA

efficiency

Up to 88%

safety Standard

IEC 60601-1 3rd Edition

emc

EN 55011 Class B

Customer Success Stories

Medical Device Manufacturer

Patient Monitoring | Portable patient monitor power system

Challenge

Needed compact, battery-backed power for portable patient monitor with CF-rated patient connections and 8-hour battery life.

Solution

Implemented medical-grade AC-DC supply with 2xMOPP isolation and low leakage. Used high-efficiency DC-DC converters to maximize battery life.

Results

Diagnostic Equipment Company

Medical Imaging | Ultrasound system power supply

Challenge

Required multiple isolated outputs for ultrasound transducers with strict leakage current limits and minimal EMI for image quality.

Solution

Designed distributed power architecture with medical-grade DC-DC converters providing isolated supplies for each transducer channel.

Results

FAE Expert Insights

Senior FAE

Applications Engineer

10+ years

Professional Insights

Key considerations: 2xMOPP requires two independent protection barriers; Leakage current must be budgeted across all components; Medical-grade components are essential for certification; EMC and safety requirements must be balanced; Documentation is critical for regulatory approval. Common pitfalls to avoid: Using non-medical grade components in patient circuits; Insufficient creepage and clearance distances; Not accounting for all leakage current paths; Inadequate isolation between mains and patient; Missing required safety certifications.

Key Takeaways

2xMOPP requires two independent protection barriers
Leakage current must be budgeted across all components
Medical-grade components are essential for certification
EMC and safety requirements must be balanced
Documentation is critical for regulatory approval

Decision Framework

Steps:

Evaluate requirements
Compare solutions
Consult FAE

Ready to Implement This Solution?

Contact our FAE team for design support and quotes

Frequently Asked Questions

What is 2xMOPP and why is it important?

2xMOPP (2 Means of Patient Protection) requires two independent protection systems between mains voltage and patient. This provides redundancy - if one protection fails, the second still protects the patient. For CF-rated equipment (direct cardiac connection), 2xMOPP is mandatory. Recom medical converters are designed with reinforced insulation providing 2xMOPP in a single component.

Contact our FAE team for medical safety standard guidance and 2xMOPP design requirements.

How do I calculate total leakage current?

Total leakage current is the sum of all contributors: AC-DC supply leakage (typically 50-100μA)

DC-DC converter leakage (10-50μA each)

Filter capacitors (depends on value and voltage)

Cable and PCB capacitance (typically small). For CF-rated equipment, total must be <100μA. Budget 80μA for components, leaving 20μA margin. Recom medical converters specify maximum leakage current to help with budgeting.

Contact our FAE team for leakage current calculation assistance and component selection.

What certifications do Recom medical products have?

Recom medical products carry comprehensive certifications: IEC 60601-1 3rd Edition for medical electrical equipment

UL 60601-1 for North American markets

EN 60601-1 for European markets

CB scheme for international acceptance. All medical products are manufactured in ISO 13485 certified facilities and undergo 100% testing for isolation and leakage current.

How do I ensure EMC compliance in medical devices?

Medical device EMC requires meeting both emissions and immunity standards: Emissions - EN 55011/CISPR 11 Class B for conducted and radiated emissions

Immunity - IEC 60601-1-2 for medical device immunity. Design practices include: Proper filtering on input and output

Shielded enclosures for sensitive circuits

Careful PCB layout with ground planes

Isolation barriers to prevent noise coupling. Recom medical converters are designed to meet Class B emissions with minimal external filtering.

Contact our FAE team for EMC design guidance and filtering recommendations.

What is the creepage and clearance requirement for medical devices?

Creepage and clearance distances depend on working voltage and pollution degree: For 250V working voltage with 2xMOPP: Creepage minimum 8mm, Clearance minimum 5mm. These distances ensure no tracking or arcing occurs over the product lifetime. Recom medical converters are designed with enhanced creepage and clearance to meet these requirements. PCB layout must maintain these distances for all high-voltage paths.

Contact our FAE team for PCB layout guidance to meet creepage and clearance requirements.