Effective way for DC/DC conversion for 2 MOPP @ 250VAC

P

Pfannenfranz

#1
Hi guys,

I'm looking at efficient ways to obtain 2 MOPP @ 250VAC according to 60601-1 3rd edition for DC/DC conversion of 500mW to 1W, unregulated. Voltages are 5-24V primary side, 3-5V secondary side.

To my knowledge, there are
1. the very costly DC/DC regulated converters out there which offer 2 [email protected] 250VAC, e.g. Traco THM 3WI

Downsides
- big
- costly

2. AD's isoPower products, e.g. ADuM6000

Downside
- EMI (180MHz switching frequency)

3. The only known product to me, which is kind of a trade off here is the AD external trafo series, e.g. ADuM4070


Does somebody know of any other converters available, which are smaller and less costly than the big regulated DC/DC ones, yet are working at, say <30MHz?
 
Elsmar Forum Sponsor
#3
We have used a variety of methods to acheive the required 2 MOPP.

An example here:
http://www.recom-international.com/...-regulators-at-very-attractive-prices-4.html#

(Disclosure - no connections)

We also use our own 'propriety' techniques, generally using custom built transformers. We use these both at elevated operating frequencies (kHz) or, sometimes, at normal mains frequencies, all dependent upon final application.

In all this it needs careful consideration of working voltages and the influence of Signal Input/Output Parts.

Be careful of the "Complies with 60601" claims that when you look really carefully relate to MOOP and not MOPP.
 

eezud

Inactive Registered Visitor
#4
Hi, did you find the solution?
I am also trying to find 5V to 5V DC-DC converter with 4kV and 8mm isolation for 250Vrms. But I haven't been able to find a good solution yet. I have a small space, so I am looking for a single chip solution.

I found some converters here:
http://www.recom-power.com/products-menu/dcdc/medical-approved-60601-1/regulated-1-4watts.html
but none of them have 4kV and 8mm isolation. Same with the chips from Murata. The only solution I have now is to use ADuM4070 chip which will then need an external transformer.

Could somebody help with their experience?
 
Thread starter Similar threads Forum Replies Date
A PRRC effective role and activities EU Medical Device Regulations 1
T How you ensure that QMS is effective and efficient? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 6
S Effective nonconforming process for AS9100 8.7 AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 6
M Informational TGA presentation: How to submit an effective good manufacturing practice clearance application Medical Device and FDA Regulations and Standards News 0
N Validation procedure, Major NC CAP - Equipment Validation process is not effective ISO 13485:2016 - Medical Device Quality Management Systems 5
A Cost effective thread gaging with ISO 9001 ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 2
S Root cause analysis - The system of developing a work instruction is not effective Problem Solving, Root Cause Fault and Failure Analysis 1
T Effective Date on Documents 21 CFR Part 820 - US FDA Quality System Regulations (QSR) 12
qualprod Effective Auditing advice needed ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 16
Q Simple and effective way to maintain Training Matrix ISO 13485:2016 - Medical Device Quality Management Systems 16
J If Corrective and Preventive Action were truly Effective IATF 16949 - Automotive Quality Systems Standard 3
qualprod Risk closeout , mitigation was not effective, next? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 12
J Specific Actions where Timely and/or Effective Actions are not Achieved Nonconformance and Corrective Action 6
Q Predating Document Effective Date Other Medical Device and Orthopedic Related Topics 18
P Thai FDA postpone AMDD to be effective in 2020 Other Medical Device Regulations World-Wide 1
S Sell a Non-RoHS device, manufactured before RoHs regulations became effective? EU Medical Device Regulations 2
J What does "effective implementation of quality management system" mean? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 7
N What does an effective design process look like? (shoots flare in the air) Design and Development of Products and Processes 2
M Corrective Action - For a corrective action to be effective, a change is required? Nonconformance and Corrective Action 5
R 5.4.1 Quality Objectives - Nonconformity: The process was not fully effective ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 36
R Training to Effective Documents - Transitioning to Agile Document Control Systems, Procedures, Forms and Templates 5
R Good Supply Practices that will be effective on March 1 2015 in China China Medical Device Regulations 2
K IATF has posted new GM Customer Specifics, effective January 2015 Customer and Company Specific Requirements 5
B Medical Device Labeling - Order No. 6 Effective Oct 01, 2014 China Medical Device Regulations 7
R CFDA updated five regulations to be effective from October 1, 2014 China Medical Device Regulations 16
T Qualification System of Internal Auditors is not Effective General Auditing Discussions 5
A A Guide to Effective Internal Management System Audits Book, Video, Blog and Web Site Reviews and Recommendations 2
D Effective Date of updated SOP Document Control Systems, Procedures, Forms and Templates 3
A Effective Date (of Documents) issue outlined in 21 CFR Part 820.4 21 CFR Part 820 - US FDA Quality System Regulations (QSR) 11
J Want best and effective solution for mouth infection Coffee Break and Water Cooler Discussions 11
S New FAA Form 8130-3 Effective 2/1/14 - Unlocked version attached Federal Aviation Administration (FAA) Standards and Requirements 3
P Effective Road Usage Coffee Break and Water Cooler Discussions 9
H How to make the Design Review Process Effective Design and Development of Products and Processes 1
Q Effective 1st Piece Inspection Sign Off Procedure Quality Manager and Management Related Issues 8
QMMike What is the most cost effective SPC software Statistical Analysis Tools, Techniques and SPC 5
Y Delivering an effective and all inclusive EHS program in a Food company Food Safety - ISO 22000, HACCP (21 CFR 120) 2
F Suggestions for quick & effective solution for Continuous Improvement Requirements ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 14
T Very effective movie about clean-up - Tool for 5S Training Lean in Manufacturing and Service Industries 4
M AS 9100 4.2.4 Process for making changes to records is not fully effective Quality Manager and Management Related Issues 4
Q Process Approach & Continual Improvement Clauses and Evidence of its Effective Use ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 9
M 8.2.2 Internal Audit - Determination of Effective Implementation IATF 16949 - Automotive Quality Systems Standard 4
L Audit NC - Lack of Effective Corrective Action Process ISO 13485:2016 - Medical Device Quality Management Systems 4
P Which Root Cause Analysis Method is the most Effective? Quality Tools, Improvement and Analysis 16
J Cost Effective Solution for Isolating USB 5V 500mA Power IEC 60601 - Medical Electrical Equipment Safety Standards Series 2
Q Are ECO's closed after they are shown to be Effective? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 9
V What are the Steps in Ensuring a Definition/Implementation of an Effective Procedure Document Control Systems, Procedures, Forms and Templates 3
P What is Effective Maintenance? Auditing a Maintenance Department Manufacturing and Related Processes 5
K Minimum Requirements for Effective Document Control Document Control Systems, Procedures, Forms and Templates 2
V Biggest bottleneck/hurdle in Implementation of Effective Design FMEA FMEA and Control Plans 4
ScottK When do you make your new or changed documents effective? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 24

Similar threads

Top Bottom