Solar Inverter PCB Copy — Full Production-File Recovery
A solar inverter PCB copy extracts a complete manufacturing dataset—Gerber RS-274X, drill files, BOM with exact MPN cross-references, and netlist—from your existing inverter board. Our engineers handle single-phase string inverters (1–10 kW), three-phase commercial units (10–100 kW), and micro-inverters alike. Typical turnaround runs 8–15 working days depending on layer count and component density, and every engagement begins with a mutual NDA signed before your board leaves the shipping box.
Why Solar Inverter Boards Are Harder to Copy Than Standard Power Electronics
Solar inverters combine high-voltage DC input stages (up to 600 V or 1000 V for string inverters), fast-switching IGBT/MOSFET H-bridge or full-bridge topologies, and sensitive analog MPPT control loops on a single PCB. That mix creates specific reverse-engineering challenges most generic board-copy shops underestimate.
Thick-Copper and Mixed-Layer Stackups
Power stages typically use 2 oz or 3 oz (70–105 µm) copper on internal layers to carry 20–50 A continuous. Control sections drop to 1 oz (35 µm) for fine-pitch QFP and QFN DSP/MCU pads. Our cross-section analysis identifies per-layer copper weight so the reproduction stackup matches the original’s thermal and impedance behavior.
High-Voltage Creepage and Clearance
IEC 62109-1 and UL 1741 demand specific creepage distances—often ≥ 6.4 mm between primary DC bus traces and secondary control nets. During the copy process we measure and document every isolation gap to ensure the cloned layout passes the same safety margins. Missing a 0.5 mm clearance reduction can mean a failed hipot test at 3,500 V AC.
MPPT Algorithm Firmware
Most solar inverters run perturb-and-observe or incremental-conductance MPPT algorithms on a TI C2000, STM32, or Microchip dsPIC. If you own the original firmware IP or need it recovered for authorized maintenance, we can read unprotected flash or evaluate protected MCUs for feasibility. Authorization and proof of ownership are required before any firmware work begins.
What a Solar Inverter PCB Copy Project Delivers
| Deliverable | Format | Detail Level |
|---|---|---|
| Gerber Fabrication Set | RS-274X / ODB++ | All copper, mask, silk, drill layers; panelization notes |
| Bill of Materials | Excel / CSV | MPN, manufacturer, package, value, tolerance, alternates |
| Netlist | IPC-D-356A | Full net connectivity for bare-board test |
| Schematic (optional) | Altium / KiCad / PDF | Functional block-level or gate-level, depending on scope |
| Centroid / Pick-and-Place | CSV | X-Y-θ for SMT assembly |
| Stackup Report | Layer order, copper weight, dielectric thickness, impedance targets |
All files are version-controlled and delivered via encrypted transfer. The NDA covers board data, firmware, and any proprietary topology details for the duration you specify—typically 5–10 years.
Step-by-Step: How We Copy a Solar Inverter Board
- Intake & NDA. You ship the board (or two samples for destructive cross-section). We countersign the NDA within 24 hours.
- High-resolution scanning. Each layer is imaged at 1200 DPI minimum. Multi-layer boards (4–8 layers common in 3-phase inverters) undergo controlled delamination or X-ray micro-CT.
- Component cataloging. Every part is identified under microscope—IGBTs, gate drivers, current sensors, EMI filters, optocouplers, relay drivers—and matched to active MPNs. Obsolete parts get cross-referenced to pin-compatible replacements.
- CAD reconstruction. Traces are vectorized into Gerber with ±0.5 mil accuracy. Polygon pours on power planes are reconstructed with thermal relief geometry intact.
- DRC & impedance verification. We run design-rule checks against IPC-2221B Class 2 (or Class 3 if specified) and verify controlled-impedance nets (RS-485 comms, gate-drive loops) against calculated targets.
- Prototype validation (optional). A small-batch run (5–10 pcs) is assembled and functionally tested under resistive or PV-simulator load before volume hand-off.
Common Solar Inverter Board Types We Handle
| Inverter Category | Typical Layer Count | Key Challenge | Turnaround |
|---|---|---|---|
| Micro-inverter (200–500 W) | 4 | Potting compound removal, conformal coating | 8–10 days |
| String inverter 1-phase (1–6 kW) | 4–6 | Mixed copper weights, MPPT DSP firmware | 10–12 days |
| String inverter 3-phase (10–60 kW) | 6–8 | High bus-bar current, multiple IGBT modules | 12–15 days |
| Central inverter control card | 6–10 | FPGA/DSP, CAN/Modbus/Ethernet interfaces | 12–15 days |
| Hybrid inverter + battery interface | 4–6 | Dual DC input, BMS communication bus | 10–14 days |
If your inverter integrates a battery management system board, we can copy both PCBs as a coordinated set, ensuring the CAN or UART inter-board protocol is documented.
Handling Obsolete and End-of-Life Inverter Boards
Solar installations have 20–25 year design lifetimes, but inverter electronics rarely last more than 10–15 years. When an OEM discontinues a model—or goes out of business entirely—field operators face costly full-system replacements. A solar inverter PCB copy lets you reproduce the control board using current-production components, extending the plant’s operational life without re-engineering the enclosure, heatsink, or wiring harness.
We routinely substitute obsolete IGBTs (e.g., Infineon FS-series → newer EconoDUAL drop-ins) and gate drivers (IR2110 → IRS2011) while maintaining pin and timing compatibility. Each substitution is documented in the BOM with a rationale note.
Quality and Safety Considerations
- Creepage/clearance audit per IEC 62109-1 — documented in a separate report if you need it for CE or UL re-certification.
- Thermal relief fidelity — power-plane connections on IGBT pads are replicated exactly; incorrect thermal relief can increase junction temperature by 8–15 °C.
- EMC-sensitive layout — gate-drive loops, current-sense shunt routing, and DC bus decoupling capacitor placement are preserved to avoid conducted-emission failures above 150 kHz.
- Conformal coating notes — if the original board used selective coating (common in outdoor-rated inverters), coating boundaries are marked on the silkscreen layer.
Related Power-Electronics PCB Copy Services
Solar inverter boards share design DNA with other high-power conversion systems. If you also need support for UPS power-stage boards or welding machine control PCBs, the same engineering team handles those projects under the same NDA framework. For general inverter topologies outside the solar domain—VFDs, motor drives, grid-tie converters—see our dedicated inverter PCB copy service page.
We also work with adjacent energy-sector boards, including smart metering PCB reproduction for utility-scale monitoring systems that often pair with solar installations.
Pricing Signals
Solar inverter PCB copy pricing depends on layer count, component count, and whether schematic recovery or firmware readout is included. Rough ranges for reference:
- 4-layer micro-inverter, BOM + Gerber only: USD 1,200–1,800
- 6-layer string inverter, full package with schematic: USD 2,500–4,500
- 8-layer 3-phase control card, full package + prototype run: USD 4,000–7,500
These are starting-point estimates. Final quotes are based on the actual board after intake inspection. Volume reproduction (bare-board fabrication + assembly) is quoted separately.
Check feasibility for your project
Send the chip marking or board details and tell us what you need to recover. Add clear photos if available.
Request a feasibility reviewCan you copy a potted micro-inverter board?
Yes. We chemically or mechanically remove potting compound (typically silicone or polyurethane) under controlled heat to expose the PCB without damaging traces or components. Expect 1–2 extra days in the schedule for de-potting and cleaning. Two samples are recommended in case one board sustains minor damage during compound removal.
Will the copied board pass UL 1741 or IEC 62109 safety testing?
Our copy replicates the original layout’s creepage, clearance, and isolation distances exactly. If the original board passed those standards, the reproduction should as well—provided the same PCB substrate (typically FR-4 TG 170+) and copper weights are used in fabrication. We supply a creepage/clearance audit report to support your re-certification filing, but final approval depends on the testing lab and any component substitutions made.
Do you handle MPPT firmware recovery?
We can read unprotected MCU flash directly. For protected devices (e.g., TI C2000 with code-security module enabled), we evaluate feasibility on a case-by-case basis. Firmware work requires proof that you own the IP or have authorization from the rights holder. Every firmware engagement is covered under NDA.
How many sample boards should I send?
One board is sufficient for non-destructive 4-layer copies. For 6+ layer boards or potted assemblies, two samples are strongly recommended—one for imaging and one for destructive cross-sectioning to confirm internal stackup and via structures.
Can you substitute obsolete IGBTs or gate drivers during the copy?
Yes. We maintain a cross-reference database for commonly used power semiconductors. Each substitution is validated for voltage rating, current rating, switching speed, and package footprint compatibility before it enters the final BOM. The substitution rationale is documented so your production team can audit it.
Working on a board like this?
Send the chip marking or two photos. You get feasibility, lead time and price within 24 hours, and the check costs nothing.
Get a free quote