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Application · Inverters & UPS

Inverter & Power Conversion Busbar Solutions

In the commutation loop of an inverter, every nanohenry counts. Laminated busbars cut loop inductance to keep switching devices inside their safe operating area.

Where They Are Used

In the Inverters & UPS

The four places busbars carry current in this application.

DC Link

The laminated connection between the capacitor bank and the inverter bridge.

IGBT and IPM Phase Legs

Matched busbar sets with blade terminals at module pin pitch.

Capacitor Banks

Multi-tab laminates sharing current evenly across parallel capacitors.

EV Traction Inverters

Compact, fully insulated assemblies for high-voltage platforms.

Design Priorities

Why laminated wins here

  • Lower overshoot — Laminated construction cancels most of the loop area — and with it, most of the overshoot: V = L × di/dt.
  • Face-to-face return path — Forward and return conductors sit inside one dielectric stack.
  • Controlled partial discharge — Dielectric selection follows voltage class and operating temperature.
  • Pre-mounted terminals — Blade tabs at module pin pitch — no adaptation hardware.
Laminated DC-link busbar inside an inverter cabinet
Engineering Notes

Tell us these at quotation

Inductance-first layout

Layer count and conductor width tuned with your DC link capacitor placement.

Creepage and standoff

Standoff and creepage reviewed for your voltage class.

Module datasheet pitch

Terminal pitch matched to module datasheets to avoid adaptation hardware.

Fast switching devices

SiC and GaN switching benefit most from low-inductance DC links.

13+Years since 2012
1–6+Conductor layers
~1000 ACurrent rating
1 dayTechnical response
Project Flow

How a custom project runs

From spec review to shipped, tested parts — one accountable supplier.

Spec ReviewDrawing, current rating, layers and terminals confirmed with you
DFM ReviewEdge distances, weld zones and clearances checked before tooling
QuotationTechnical and commercial quote within one business day
Sample BuildPrototypes for fit and electrical verification
Tooled ProductionControlled process with documented QC per lot
DeliveryPacked to your requirements, test records on request

One technology, every application.

Voltage class, current profile and terminal types — we will share reference configurations and DFM guidance.

FAQ

Frequently asked questions

Straight answers from the engineering team.

What are the standard conductor and dielectric options?
Conductors are C11000 copper as standard, with aluminum available on request, tin plated. Dielectrics include PET, Nomex and epoxy (DLF) films, selected according to your voltage class and operating temperature.
What testing is performed on production lots?
Testing follows the specification agreed at design freeze: dielectric withstand (hipot), insulation resistance, dimensional inspection, visual inspection of plating and edge sealing, and continuity checks per conductor path.
What current ratings can SHANYUAN busbars handle?
Rating is designed per application up to roughly 1000 A, sized against continuous and peak current with thermal margin — see our ampacity chart for the starting reference points.
How long does a sample build take?
A sample is typically produced within 5–7 working days from drawing approval. Fit and electrical verification is done in-house, and you receive test results together with the sample.
What quality system do you follow?
Production follows a documented process chain with batch records: incoming material checks, dimensional inspection, hipot and insulation testing, continuity checks and final visual inspection. Test records are issued per lot on request.
Do you support international shipping and packaging?
Yes. Parts are packed with edge protection, anti-static film and export-grade cartons to your handling requirements, and shipped by sea or air. Commercial documents (invoice, packing list, test records) are provided with every shipment.

Inverter & Power Conversion Busbar Solutions

Send the application, voltage class and current profile — we will share reference configurations and DFM guidance.

Talk to our engineering team

Send drawings, current ratings and voltage class — DFM feedback and a quotation within one business day.

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