Circuit & Schematic Design
Architecture, topology and a schematic your manufacturer can read.
What you receive
- System block diagram and power tree
- Hierarchical schematic set with a title block per sheet
- Component selection matrix with second sources
- Worst-case and tolerance analysis
- Simulation results (SPICE / LTspice)
- Design review pack and issue register
Capabilities
How we approach it.
Topology selection with the trade-offs written down
Buck, boost, SEPIC, LDO or charge pump — chosen against efficiency at your real load profile, ripple budget, EMI headroom and board area, with the reasoning recorded so a later reviewer can follow it.
Analog and mixed-signal front ends
Precision amplification, anti-alias filtering, current sensing, isolation barriers and ADC drive networks designed against a stated noise and accuracy budget rather than a reference design copied wholesale.
Power architecture and sequencing
Complete power tree with efficiency at each rail, thermal headroom, inrush and sequencing logic, brown-out behaviour and the reset topology that keeps an MCU from latching in an undefined state.
Worst-case analysis before layout
Tolerance stack-up, temperature coefficients and end-of-life drift checked against the specification, so a circuit that works on the bench still works at −40 °C on the thousandth unit.
Schematics built for review, not just capture
Signal flow left to right, power top to bottom, consistent reference designators, net labels that mean something, and every part carrying manufacturer part number, tolerance and voltage rating on the sheet.
Second sources designed in from day one
Critical parts carry an approved alternate with a footprint that accepts both. A single-source passive is a schedule risk we remove at schematic stage, not during a shortage.
A schematic is the contract every later stage is held to. If the topology is wrong, no amount of careful layout rescues it; if the documentation is thin, the cost surfaces later as a bring-up problem, a compliance failure or a purchase order for the wrong part.
How we approach a new circuit
We start from your requirements rather than a reference design. Load profile, ambient range, efficiency target, noise budget, safety class and expected volume determine the topology — and we write down why each was chosen, so the decision survives a handover.
Power comes first. A complete power tree with per-rail efficiency, dissipation and sequencing tells us early whether the enclosure can shed the heat and whether the battery meets its runtime claim. It is far cheaper to find a 400 mW problem here than after tooling.
Analog gets the attention it needs
Signal chains are designed against a stated budget: input-referred noise, gain error, drift over temperature and the ADC's real effective number of bits. We simulate the parts that warrant it — control loops, filter responses, start-up transients — and leave the rest to well-understood design rules.
Documentation you can hand to anyone
Every sheet carries a title block, a revision and a purpose. Nets are named for what they carry. Parts carry manufacturer part numbers, tolerances and voltage ratings on the face of the schematic, because the person reading it during a shortage is rarely the person who drew it.
You receive the source project, not just a PDF. The design is yours, in a format you can open without us.
Tooling & standards
What we work with.
- EDA
- Altium Designer
- KiCad 8
- OrCAD Capture
- Simulation
- LTspice
- TINA-TI
- QSPICE
- Python control loop models
- Standards
- IPC-2221B
- IPC-7351B
- IEC 60950 / 62368-1 clearances
Related work
Where we have applied it.
2025Industrial & IIoTIoT Environmental Monitor
A wall-mounted indoor air quality monitor measuring CO₂, PM2.5, VOC, temperature and humidity, reporting over Wi-Fi with a two-year calibration interval.
Circuit · PCB · Embedded
2025 ConfidentialPortable Health Monitoring Device
A wrist-worn continuous vitals monitor with a Type BF applied part, seven-day battery life and BLE upload to a clinician dashboard.
Circuit · Embedded · Test
2024Energy & PowerEV Charging Control Module
A 22 kW AC charge controller with residual current detection, PLC communication and grid-code compliant load management.
Circuit · PCB · Test
Adjacent services
Often needed alongside.
Common questions
Can you take a project from a napkin sketch through to production?
Yes — that is the common case. Discovery turns the concept into a written specification, and we carry it through schematic, layout, firmware, prototyping, compliance and manufacturing transfer. You can also join at any single stage if you already have work in progress.
Do we own the design files at the end?
Always, and without negotiation. You receive the Altium or KiCad source project, firmware repositories, build systems, test procedures and manufacturing data. There is no scenario where you need us in order to build your own product.
Will you work with our existing manufacturer?
Yes. We review against their published capability rather than a generic rule set, and we handle the technical liaison during quoting, first article and ramp. If you would like an introduction to a manufacturer instead, we can evaluate options on like-for-like terms.
How do you handle NDAs and confidential work?
We sign your NDA before any technical discussion — sending your own is the fastest route. Roughly a third of our work is under confidentiality and does not appear in our case studies at all.
Have a board that needs designing?
Send us the constraints — schematic, mechanical envelope, volume, timeline. You will get a considered response from an engineer within one business day, not a brochure.
We reply within one business day, from an engineer.