Power Electronics

Anderson, Antony

Consultant Electrical Engineer: failure investigations: expert witness

Details

Services Provided:

An independent consultant electrical engineer and expert witness with extensive experience of electrically-related investigative work that has successfully supported litigation and dispute resolution. He investigates and reports on unusual electrical problems and on the causes of electrical machine and control system failures. He offers ideas and solutions that improve design/manufacturing processes.

Armstrong, Keith

Interference and safety: design, training and solutions

Details

Services Provided:

Training, design and problem-solving services in EMC, EMI, RFI, Interference, Emissions, Immunity, Susceptibility, Electromagnetic Interference, Safety, and EMC for Functional Safety.

For every type of device, product, equipment, vehicle, appliance, apparatus, machine, system or installation.

For reducing financial risks, increasing profits, increasing uptime, improving safety, or achieving regulatory compliance (e.g. EU Directives such as EMC and LVD).

Barfield, David Alan

Solutions to problems in engineering and physics

Details

Services Provided:

Audits and Reviews (Project, Technical and Contract),
Contract Management,
Design and Build Projects,
Documentation and Drawings (- most formats; Mac and PC compatible),
Electronic Analysis and Design (System and Detailed),

Hazard Analysis,
Mechanical Analysis and Design,
Modification and ‘Get Well’ Programmes,
Project Management,
Qualification/Environmental Testing,

Reliability Assessments,
Requirements Analysis and Capture,
Safety Studies,
Specifications,
Stress Analysis,

System Analysis, Design and Procurement,
Thermal Analysis and Design

Braithwaite, Steve

Electronic design & development consultant; specialising in wireless communications

Details

Services Provided:

Steve is CEO and one of the principal consultants of Ash Communications, a high-quality provider of electronic design and consulting services, focusing on wireless communications. Ash Communications will work with you to design and develop solutions that meet your needs and work in your business environment. Ash gives flexibility which allows design to any level, and work in partnership with your other solution-providers to realise the fastest and most cost effective solution to your requirements.

You will find ASH Communications an ideal partner for:

New product development
This is our main activity, from requirement to production

Product feasibility investigations, analysis and simulation
For researching a new idea, or evolution of an existing product

Product prototype design, manufacture and field trials
To try out ideas in the real world

Pre-qualification emissions testing for CE and FCC certification
We have extensive equipment for testing to see if products are likely to pass formal certification

CE and FCC certification support
To prepare the documents required for certification of products, wherever it has been designed

Manufacturing support
Once a product is in production, we offer support to buying, test, and fault-finding

Consulting and training service in the field of wireless communications
We can bring our university research-level and teaching expertise to your needs

Technical due diligence investigation and reporting
To assist new investment due diligence exercises

Design trouble-shooting
We are often asked to help identify and solve client's design and production problems

Working with ASH Communications, you have the advantages of:
Maximum efficiency - our extensive experience means we can understand and become productive very quickly
Cost effective - you use us when you need us
Partnership - your success is important to us
Flexibility - you can engage us from a one-day consultancy through to a long term partnership
Detailed knowledge of the full design process from requirements through to full production

Foster, Steve

Power electronics design and development consultant

Details

Services Provided:

Sound Developments provides a consultancy design/development service for the power electronics engineering sector: technical consultancy, management, planning for electronic/electrical product development, problem solving, detailed design of inverters, converters, auxiliary power supplies and magnetics using simulations, prototype hardware verification and design reviews.

Do you require expert help in applying and complying with those complicated product standards? I can recommend my associate to provide the best solution for compliance for your product, please contact: John Showell, Product Approvals Consultant

Gurwicz, David

Details

Services Provided:

Ex. Managing Director of major consulting group now semi-retired.Experience in many aspects of Power Electronics associatedwith Lasers, Industrial Microwaves, Welding, SMPS's, UPS’sand other inverters.

Hill, John

Details

Services Provided:

Expert witness, design review, technical audit and QA functions for electric railway engineering industry and railway operators. Special focus on vehicle electric traction drives, fixed traction power systems, railway signalling and communications, rail system integration and EMI/EMC.

Lawrence, Roger

Motors VFD ASD, Industrial Reliability, PQ, Energy Mgmt, Renewable, DG

Details

Services Provided:

Roger G. Lawrence PE CEM is an independent consultant and sole proprietor based in Raleigh, North Carolina. He provides specialized engineering services locally, nationally, and internationally. His activities cover a broad spectrum of engineering functions from practical hands-on trouble shooting and the development of low cost practical solutions to concept development. He has published a number of technical papers and presents turorials and workshops. He specializes in Electrical Reliability, Motors, Adjustable Speed Drives, Power Quality, Energy Storage, Energy Conservation, Energy Intensity, and Distributed Generation. He promotes compatibility in industrial electrical systems for increased efficiency, reliability, and energy savings. He applies the use of Advanced Control and Power Technologies to improve industrial electrical reliability and energy conservation. He is presently involved in the development of Pulse Power Sparker Technology and its potential applications.

Pocock, Ian

Electromagnetic Effects Consultancy Services - Design, Approvals, Problem Solving and Training

Details

Services Provided:

EMC Design Techniques , Remedial Countermeasures and Functional Safety
EMC Control and Test Plans
EMC Test Procedures (UKAS) - Mil Std 461/462, Def Stan 59-41, AECTP 500, DO160
EMC Test and Trials Support
Measurement Uncertainty Calculations
CE Marking Compliance
COTS (Commercial off the Shelf) Equipment for use in military applications
EMP (Lightning and Nuclear)
Lightning Effects - Mitigation and Protection
Electro-static Discharge Protection
Radio Hazards to Electro-explosive Devices - Design, Assessment, Trials Plans and Support
Oil Sector RF and Third Party Safety Assessments for Detonators and their Firesets
Non-ionising Radiation Assessments
RFI Studies
Training
Antenna Design
Third Party Design Reviews
Failure Modes and Effects Analysis
Technical, Bid, Project & Programme Management
Risk Assessments

www.peak-em.co.uk

Reeves, Malcolm

Analogue/Digital electronics design and software development

Details

Services Provided:

Custom Analogue Digital & Power electronics hardware.
VHDL IP.
System and circuit design & review.
Bespoke Software in C, C++ or PIC Assembler.
Innovation.
Fail-Safe & Safety Design.
Switch-Mode PSUs (SMPSU).
X10 Signalling.
Filter, Transformer & Inductor Design.
Embedded Processors.
EM Immunity (EMI/EMC).
Track Circuits & Railway simulation.
Spice (Pspice) simulation.
Design for Industrial Environments.

Showell, John F

Assisting electronics companies with product safety certification

Details

Services Provided:

Product Approvals Ltd is a consulting engineering practice specialising in helping electronics companies with obtaining product safety approvals, for example CE marking for the European market and nationally recognised testing laboratory (NRTL) marking for the North American market using third-party agencies such as Underwriters Laboratories (UL). Here are some further benefits to you of using my services:

Completely impartial advice aimed at helping you fulfill your specific product approvals requirement.
An in depth understanding of the unique requirements for electronic products
An emphasis on tailoring a solution to your unique needs.
A hands-on approach if that's what you need.
Over 10 years experience in obtaining UL safety certifications.
Knowledge of standards including UL 508C Power conversion equipment, UL 840 Insulation co-ordination, UL 50 Enclosures for electrical equipment, UL 746 Polymeric material use in electrical equipment, UL 1449 Transient voltage surge suppressors, EN 61800-5-1 Electrical power drive systems, EN 50178 Electronic equipment for use in power installations, EN 60529 IP codes, NEMA-250 Enclosures for electrical equipment, Canadian standard CSA C22.2 No. 14 Industrial Control Equipment etc.
Determination of optimal product certification routes.
Additional flexible resource as and when you need it.
A means of staying up-to-date with current legislation affecting electronics equipment.
Design reviews - on site - or by web conferencing.
Custom-written design guidelines

The service will be tailored to best suit your unique requirements.

Preliminary safety design reviews. To help ensure conceptual designs are compliant with key safety requirements from the outset of the project.
- Service code PSDR1 (on-site)
- Service code PSDR2 (web based)
Project management and facilitation of third-party safety approval submittals e.g. obtaining agency listings for US and Canadian markets.
- Service code TPSA
Assistance with self-certification CE-marking of products to the Low Voltage Directive for the EU market.
- Service code SCA-LVD
Creation and implementation of complete product design verification plans to address product conformity aspects including safety, EMC, environmental (climatic, vibration), user-interface, integrity and reliability aspects as required.
- Service code PDVP
Review of market entry product approval options. For example investigation of alternate certification agency routes and product label markings.
- Service code ME
Legislation monitoring. This could for example involve monitoring of a key safety standard - or looking at the implications of new EU legislation such as the Energy-using Products (EuP) directive.
- Service code LM
Design guideline writing. This can be a valuable aid to reducing time spent by design engineers navigating and interpreting sometimes confusing or complicated information laid-out in technical standards. Collating differing requirements across various applicable standards when considering e.g. PCB clearance requirements is another example of a potential benefit.
- Service code DG
Data research and collation. This service can be of help for example when selecting suitable polymeric materials for an electrical enclosure and can include review of relevant parameters such as flammability, relative thermal index for electrical & mechanical performace, comparative tracking index, arcing and hot wire ignition resistance and so forth.

Service code DRC

Other services or combinations of services can be provided in order to satisfy your requirements please ask info [at] productapprovals [dot] co [dot] uk.

Do you need design assistance as well? My associate is a highly experienced power electronics design expert, please contact: Steve Foster, Power Electronics Consultant

Yardley, Russell John

Power electronics consultant

Details

Services Provided:

The services of myself, Russell John Yardley, I supply via my company, Northstead Design Ltd.
My main area of expertise is Power electronics and its control and in particular
Switched mode power supply design. (SMPS).
Related to this I get involved in the design of transformers and inductors for bespoke power supply design.
Prior to branching off as a freelance electronics engineer I worked for the following company's as an electronic
design and development engineer:-
GEC Industrial Controls (Kidsgrove 1982-1986)
Powernetics (Loughboro 1986-1990)
Pektron (Derby 1990-1992)
Erskine Systems (Scarborough 1992-2000)

Typical services I offer are:-

• Electronic Circuit Design
• Consultancy/Advice:- As and when needed priced by the hour/day.
• Existing products and support issues

• Electronic/product design reviews
• Electronic equipment FMEA’s and single fault test plans
• Power electronics design/development and assistance in the same.
• Switched Mode Power Supply (SMPS) design and development assistance.
• Circuit simulation and feasibility studies.
• EMC compliance troubleshooting assistance
• Technical documentation. Product specifications, test specifications, product operating specifications, circuit design description.
• Test procedures.
• Design Review assistance (from a 3rd party point of view)
• General electronic development “bench” testing
• Design and verification testing
• Component reliability issues
• Design to cost exercises
• Product failure investigations
• PCB layout assistance
• Embedded micro and associated firmware
• Component obsolescence issues
• Product specifications
• Product compliance work
• Product reliability improvements
• Component reliability issues (Failures attributed to component manufacture, product design issues, manufacturing issues).
• Alternative component approval including verification testing and ruggedness evaluation
• Existing product support issues
• Temporary electronic design/development engineer hire at “busy times” or fill in if any of your own design engineers leave or are temporarily off sick/away.
• Pick up the pieces of a project if your electronics design engineer leaves you “without a paddle”
• Full design “fit for purpose” reports on your electronic products. Advance warning of potential weaknesses/design issues which could cause failure returns or dangerous issues in the field.
• SMPS topology choice decisions.
• Analogue, digital and Power electronics design/development/troubleshooting.
• Design of transformers, inductors (chokes) for power conversion or filtering. Ferrite, powder, iron cored etc. Design down to individual “copper” and core geometry/type.
• Power electronics/Power supply education and training.
• Customer support issues.
• OEM , power supply/equipment sourcing and choice issues
• Design/development engineer recruitment personnel assessment reports. Vetting the suitability and capability of prospective design engineers/technicians your HR department are looking to recruit.
• Project management
• Expert witness consultation, reports and related services
• Electronic equipment diagnostics and repair

Power Electronics

Anderson, Antony

Armstrong, Keith

Barfield, David Alan

Braithwaite, Steve

Foster, Steve

Gurwicz, David

Hill, John

Lawrence, Roger

Pocock, Ian

Reeves, Malcolm

Showell, John F

Yardley, Russell John

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