Power Supply PCB Copy – NDA-Protected Cloning

Power Supply PCB Copy: Accurate Board Replication Under NDA

A power supply PCB copy is the process of reverse-engineering an existing power supply board—SMPS, linear regulator, AC-DC converter, or DC-DC module—into a complete manufacturing file set: Gerber data, bill of materials, schematic, and pick-and-place coordinates. Our engineers replicate copper geometry to ±0.5 mil (0.0127 mm), match the original stackup and creepage/clearance requirements, and deliver files you can send straight to fabrication. Every project runs under a signed NDA from day one.

Why Power Supply Boards Are Harder to Clone Than Average PCBs

Power supply circuits are not just another digital board. They carry high-voltage rails, dissipate significant heat, and rely on precise copper pours for current handling and EMI compliance. Here is what makes a power supply PCB copy technically demanding:

• High-voltage creepage and clearance: AC-DC supplies operating at 85–264 V AC input must maintain ≥6.4 mm creepage between primary and secondary per IEC 62368-1. Missing this during copy leads to a board that fails safety testing.
• Heavy copper and thermal management: Many SMPS boards use 2 oz or 3 oz copper on inner layers. Standard cross-section analysis must confirm actual copper weight—assuming 1 oz by default is a common mistake that causes overcurrent failures.
• Magnetic component footprints: Transformers and inductors often sit on custom footprints with non-standard pin spacing (e.g., EFD25 with 10.0 mm pin pitch). A 0.2 mm error here means the component will not seat or solder properly.
• Mixed-signal sensitivity: PFC controllers, current-sense resistors, and feedback dividers share the board with noisy switching nodes. Copper pour boundaries and via stitching patterns must be captured exactly to preserve EMI behavior.
• Potting and conformal coating: Industrial power supplies are frequently potted or coated. Removing potting compound without damaging traces requires controlled chemical or mechanical stripping before scanning.

What You Receive in a Power Supply PCB Copy Package

Our Reverse-Engineering Process for Power Supplies

Step 1 — Intake and Feasibility

You ship us the sample board (or two, if available—one for non-destructive scanning, one for cross-sectioning). We photograph both sides at 2400 DPI, log board dimensions, and identify the power topology. Within two business days we return a feasibility report with estimated cost and timeline.

Step 2 — Delayering and Imaging

For multilayer power supply boards (commonly 4–6 layers on industrial SMPS units), we use controlled chemical delayering combined with high-resolution optical scanning. Each copper layer is imaged at ≥4000 DPI. We capture via drill locations, slot cuts for high-current busbars, and thermal relief patterns on ground planes.

Step 3 — CAD Reconstruction

Scanned images are vectorized into CAD. Our engineers manually verify every net—especially the high-current paths from input rectifier through transformer primary, and from secondary rectifier through output filter. Creepage distances are measured and compared against the relevant safety standard (IEC 62368-1, UL 60950, or customer-specified).

Step 4 — BOM Extraction and Cross-Referencing

Components are identified by markings, package measurement, and circuit analysis. For power-specific parts—MOSFETs, diodes, optocouplers, PWM controllers—we verify voltage and current ratings against the circuit requirements, not just the part number. If a component is obsolete (common on supplies older than 8–10 years), we provide a cross-reference with matching or better specs.

Step 5 — Verification and Delivery

Gerber files are run through DRC, then compared layer-by-layer against the original scans. The schematic is net-checked against the Gerber. We deliver the full package, typically within 8–15 working days for a 4-layer SMPS board. Rush service (5 working days) is available at a surcharge.

Power Supply Types We Commonly Copy

If your board is an LED driver power stage, we handle the constant-current output loop and dimming interface as part of the same copy project. For boards powering UPS systems, we pay particular attention to the battery charger and inverter sections, which often run on separate but tightly coupled PCBs.

Accuracy and Tolerances

• Trace/space accuracy: ±0.5 mil (±0.0127 mm) on outer layers; ±1.0 mil on inner layers after delayering.
• Drill registration: ±1.0 mil hole-to-pad.
• Copper weight confirmation: Cross-section measurement accurate to ±0.1 oz.
• Component placement: ±0.05 mm X/Y; ±0.5° rotation.
• Creepage/clearance: Measured and documented to 0.1 mm resolution.

Who Needs a Power Supply PCB Copy?

OEMs with discontinued boards: Your power supply vendor closed or the design was never handed over. You need production files to qualify a new fabricator. This is the single most common scenario we handle.

Repair and maintenance shops: Industrial equipment running on a proprietary SMPS that failed. The OEM quotes 16 weeks for a replacement board. A copy lets you fabricate locally in days. We see this frequently with welding machine control boards and mining equipment power stages where downtime costs thousands per hour.

Engineering teams benchmarking competitors: You want to understand a competitor’s power topology, component choices, and layout techniques. A full schematic extraction gives you that insight without guesswork.

Pricing Signals

Power supply PCB copy projects typically fall in these ranges, depending on complexity:

• 2-layer single-output SMPS: Starting around $350–$600.
• 4-layer PFC + DC-DC combo: $800–$1,400.
• 6-layer multi-output industrial supply: $1,500–$2,500+.

Pricing depends on board area, layer count, component density, and whether potting removal is needed. We provide a firm quote after the feasibility review—no surprises.

NDA and IP Protection

Every power supply PCB copy project begins with a mutual NDA. We do not retain your files after delivery unless you request archival. Sample boards are returned or destroyed per your instruction. For details on our confidentiality framework, handling of sensitive designs, and data security protocols, see our trust and IP protection policies.

Related Power and Industrial Board Services

Power supply boards rarely exist in isolation. If your system also includes motor drive stages, we offer dedicated motor drive PCB copy services that account for high-current IGBT gate driver layouts. For energy infrastructure projects, our solar inverter board cloning handles the unique demands of MPPT and grid-tie circuits.

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