A solar inverter and a wind converter are the same engineering argument in different boxes: a switching stage that carries hundreds of amps sits a few millimetres from the logic that controls it, and the whole assembly has to hold its spacing through twenty years of thermal cycling outdoors. That is a stack-up and inspection problem before it is a price problem.
Where high voltage and high current meet
The power section sets the copper, the substrate and the separation; the control section sets the impedance and the layer count. Building both in one plant means the clearance agreed on the power side is not undermined by a control board designed somewhere else, and the thermal path out of the switching devices can run through the board, a metal backing or a ceramic section instead of relying on a heatsink alone.
Spacing, creepage and the stack-up
High-voltage designs live or die on the distance between conductors, and that distance is a property of the stack-up, the finish and the coating — not something added at the end. It is agreed with engineering before the layout is frozen, so a later review does not force a re-spin. The published process limits are on the capability page, because they apply to every industry and do not change by market.
Repeat production for a fielded fleet
Renewable installations are supported for decades, so the second and third batch of a board matters as much as the first. Orders are re-quoted from the original stack-up and part number with the same finish and placement programme, and a component that has gone obsolete is replaced only after the alternative is proposed in writing and approved. A replacement batch then matches the units already in the field.
Cabinets, harnesses and units
Power boards carry terminal blocks, busbars and connectors that go through the DIP lines, after which cable, harness and box build, firmware loading, functional and burn-in test and serial-number traceability run in the same plant. A controller or inverter sub-assembly can therefore leave as one tested unit.
Next step
Send the Gerber set, the voltage and thermal requirements, the BOM if assembly is included, the quantity and the target date. Board families used in this work have their own pages — heavy copper, aluminium and metal-core and ceramic — and box build covers the unit. Records and the certificate set are on quality assurance and the certifications page; controls that share a cabinet with this equipment are described under industrial control PCBs, and the rest of the industries we serve are on the industries page.
