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$
USD
I will review your schematic and find design errors before you build the pcb
About this Gig
Stop finding design errors after you've already paid for prototypes.
I'm a hardware engineer with years of hands-on experience designing and
debugging real boards. I review your schematic the way I'd review a
colleague's before layout.
WHAT I CHECK
- Power tree: rail voltages, current budget, dropout, sequencing, decoupling
- Interface protection: ESD/TVS, level shifting, series resistors
- Connectors and pinouts: datasheet match, polarity, mating part
- Component stress: ratings vs actual conditions, derating, second source
- Datasheet conflicts: pin numbers, package variants, power-up requirements
- Schematic hygiene: floating inputs, missing pull-ups, no-connects
WHAT YOU GET
A PDF report listing every issue as:
1. Severity: critical / major / minor
2. Why it matters: what fails, and when
3. How to fix it: a concrete change
Delivered within 3 days. One round of follow-up questions included.
WHAT I DON'T DO
- PCB layout (I review the schematic, not the routing)
- Firmware, EMC certification, simulation
Send your schematic as PDF. Altium, KiCad, OrCAD, Eagle - any tool is fine.
Not sure it's ready? Send page 1 and I'll tell you what I'd look at.
Specialization:
Circuit design
•
Schematics
•
Analysis
File format:
Software:
Altium Designer
•
Cadence OrCAD
Interface:
HDMI
•
UART
•
SPI
•
I2C
FAQ
What file format do you need?
A PDF of the schematic is enough. I don't need your source files.
Will you sign an NDA?
Yes. Send yours, or use a standard mutual NDA before sharing files.
The board is already built and doesn't work. Can you still help?
Yes. Send the schematic and describe the symptom - what happens, when it happens, and any measurements you've taken.
What if you find nothing wrong?
You still get the report showing what was checked. A clean review is a valid result, and I'll tell you honestly if I think the design is fine.
Do you also do PCB layout?
No. I review the schematic, not the routing. I can give your layout engineer a list of constraints to follow.
