Transformer Design Review
Advanced Magnetics Design reviews transformer and magnetic-component problems by checking whether the part was built to the specification, whether the specification fits the application, and whether the actual operating conditions match the design intent.
Best Fit
Review work can address transformer overheating, core saturation, failed hipot, excessive leakage inductance, poor regulation, noise, high excitation current, failed prototypes, and production variation. Regulation, noise, and high excitation current are often especially good fits because the magnetic design usually gives clear clues about what needs to change.
The goal is not to guess at a fix. The goal is to compare the specification, the supplied part, and the real operating conditions so the likely cause can be separated from the symptoms.
Review Method
Many transformer problems are not caused by a mysterious failure. A part may be built exactly to the customer specification and still fail in the product because the application moved outside the design assumptions. A transformer designed for 24 VDC input may behave differently at 30 VDC. A lower operating frequency, higher power requirement, different duty cycle, or different waveform can turn a reasonable design into a thermal, saturation, regulation, or noise problem.
If the part is built correctly but the application has changed, the issue is often an application mismatch. If the specified design does not support the stated operating conditions, the issue is a design/specification problem. If the design and application match but the measured part does not, production variation or supplier execution may be the next thing to investigate.
Review can include winding structure, core and gap selection, wire size, insulation system, leakage inductance, capacitance, DCR, inductance, turns ratio, thermal behavior, material choices, manufacturability, and production test requirements.
The actual voltage, frequency, duty cycle, waveform, load, output power, cooling, isolation requirement, and operating environment are compared with the assumptions used to create the transformer design.
When the design and application appear consistent, samples and test data can be compared against the specification to look for winding, material, polarity, DCR, inductance, turns-ratio, hipot, or build-variation issues.
Recommendations may include design changes, revised operating limits, test-plan changes, specification cleanup, winding or material changes, prototype guidance, manufacturing notes, or a second-source path.
Deliverables
Depending on the available information and the agreed scope, deliverables can include a written review, likely-cause analysis, recommended design changes, revised specification notes, test plan, manufacturing notes, second-source path, and prototype/build guidance.
Yes, if the customer has a full specification and enough operating information. A sample is better for in-depth analysis, but many design/application mismatches can be identified from the spec and actual electrical use.
If a sample and specification are available, measured values can be compared against the drawing, electrical requirements, and construction expectations to help separate supplier execution from design or application issues.
Yes. If the review shows that the transformer needs different performance for the actual application, the next step can be a revised specification, redesign, or prototype guidance.
Boundaries
Advanced Magnetics Design can identify likely causes, review the transformer or magnetic-component design, recommend changes, and support revised documentation. Final safety certification, agency approvals, UL/CE approval, full power-supply redesign, PCB design, final production validation, and production release remain with the customer or manufacturer unless separately agreed.