Custom Magnetics for Solar & Battery Storage
Solar PV and battery energy-storage systems live and die on the magnetics — efficient, high-current, low-EMI transformers, inductors and chokes across the inverter, DC-DC and grid interface. P&A International engineers, prototypes and delivers custom magnetics for PV, hybrid-inverter and battery-storage (BESS) power electronics, built to your topology, power level and grid-compliance requirement.
As an engineering-led contract manufacturer founded as an engineering consultancy, we assign one dedicated engineer to your project from design review to qualified samples in 10–15 working days, then scale into volume through our vetted partner-factory network, where every supplier is ISO 9000 certified or better.Request a quote ›
consultancy + manufacture
per project, end-to-end
qualified samples with test data
every supplier certified or better
one-off to high volume
Why choose PA for solar & storage magnetics
High efficiency
Low-loss cores and optimised windings keep inverter and DC-DC stages efficient and cool at high power.
High current
Litz and flat-wire inductors and bus designs handle the high DC and ripple currents of storage systems.
Low EMI
Common-mode and differential chokes designed for the conducted-emissions limits your system must meet.
Grid-safe isolation
Reinforced isolation and creepage/clearance to IEC 62368-1 / 61558, CE and UL for grid-tied equipment.
Engineering capability
- Magnetic design & simulation — turns, leakage, saturation, core loss, thermal modelling
- Inverter and isolation transformers for PV and hybrid systems
- High-current DC-link, boost, buck and PFC inductors with litz / flat-wire winding
- Common-mode and differential EMI chokes for conducted-emissions compliance
- Current transformers and sensors for monitoring and protection
- Safety construction to IEC 62368-1 / 61558; grid-code isolation
- DFM review to hit target cost; qualified samples with full test data
- One dedicated engineer owns the project end-to-end
At a glance
| Applications | PV / hybrid inverters, BESS, DC-DC, EV charging |
| Components | Transformers, inductors, chokes, current sensors |
| Power | Up to tens of kW |
| Frequency | Line + high-frequency switching |
| Isolation | To CE / UL / IEC 62368-1 / 61558; reinforced available |
| Construction | Litz / flat-wire; potted or open |
| Prototype | 10–15 working days to qualified samples |
| Quality | Every supplier in our network is ISO 9000 certified or better |
Why engineers & buyers choose PA
For design engineers
A true design partner — one dedicated engineer, full simulation and DFM support, rapid samples, and solar/storage magnetics optimised for efficiency, current capability, thermal and EMI. We co-design with your inverter and BMS — not just catalogue parts.
For purchasing
Low-risk scalability — predictable 10–15-day prototypes, flexible MOQ from one-off to production, target-cost DFM, a single point of contact, and a vetted ISO 9000+ partner network managed end-to-end by P&A. No hand-offs, no surprises.
3 easy steps to get started
Send us your spec
Send your drawing or spec sheet. One dedicated engineer reviews it and confirms the technical details with you.
Proposed design & quote
You receive a proposed design and indicative pricing — typically within 48 hours — to review and refine together.
Samples & production
Qualified samples with full test data in 10–15 working days; on approval we scale into volume through our partner network.
Applications
Solar PV inverters · hybrid & battery (BESS) inverters · DC-DC converters · EV charging · off-grid and backup power · microgrids and energy management.
Explore related types: high-frequency & switch-mode magnetics, inductors & chokes and planar transformers.
Choosing magnetics for solar & storage
A few decisions shape every solar/storage magnetics design — sharing this detail lets us quote and prototype faster:
| Stage & topology | Which stage — PV inverter, DC-DC, PFC or grid interface — and its topology set the transformer and inductor design. |
| Power & current | Continuous and peak power, DC-link and ripple currents set core size, winding and cooling. |
| Efficiency & thermal | Loss budget and ambient set the core grade, litz/flat-wire choice and potting for the efficiency and temperature you need. |
| EMI | Conducted-emissions limits set the common-mode and differential choke design for your filter. |
| Isolation & grid code | Reinforced isolation and creepage/clearance to IEC 62368-1 / 61558, CE, UL and your grid code designed in from the start. |
What to send us for a fast, accurate quote
The more of this you can share, the quicker we can return a proposed design and price:
- Which stage and topology (PV inverter, DC-DC, PFC, grid interface)
- Continuous and peak power, DC and ripple currents
- Switching frequency and efficiency / thermal targets
- Isolation, grid-code and safety requirements, and target standards
- Mechanical envelope, cooling and mounting
- Target cost and annual volume or call-off pattern
- Any reference design, competitor part number or schematic
Working from a competitor part or a sample is fine — our engineer will reverse-engineer it or design a drop-in equivalent to your specification.
📄 Download the solar & storage magnetics RFQ checklist & selection quick reference (PDF)
Get a quote
Send your topology, power level, currents and spec sheet and one dedicated engineer will reply — typically within 48 hours — with a proposed design and indicative pricing.
One dedicated engineer reviews every enquiry and replies with a proposed design and indicative pricing. Your details are used only to respond to your enquiry. Prefer email? support@pa-international.com.au