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Magnus HedemarkandGitHub 6db11ea58a feat(electronics): add design and bench methodology (#511 )

* feat(electronics): add design and bench methodology

* fix(electronics): retain compact diagnostic evidence

* test(electronics): accept equivalent loading diagnostics

2026-09-14 18:32:32 -04:00

1.9 KiB

Raw Blame History

Component contract

1. Job and envelope

Function and observable behavior:
Component family and why:
Input/output quantities and units:
Minimum / nominal / maximum / transient / fault:
Supply rails, frequency, duty cycle, ambient, enclosure, lifetime:
Acceptance criteria:

2. Identity and evidence

Manufacturer and exact ordering code/package/revision:
Datasheet and application-note URLs:
Schematic, pinout, exposed pad, polarity, assembly constraints:
Guaranteed values versus typical curves:
Board/SoC schematic and firmware assumptions, if attached:
Unknowns and evidence owner:

3. Margins and calculations

Requirement	Equation/assumption	Corner	Result	Margin	Evidence

Tolerance, drift, noise, leakage, loading:
Dissipation, thermal path, SOA/transient:
Protection energy and clamp limits:
Guaranteed / estimated / measured classification:
Controlling corner and model-validity range:
Observed fact:
Inference supported by the fact:

Completed example

Requirement	Equation/assumption	Corner	Result	Margin	Evidence
actuator conduction	`P=I²R`, hot guaranteed `RDS(on)`	0.42 A steady, hot	32 mW	below thermal budget	datasheet condition + measured rail

The example is screening evidence only; startup linear-mode SOA and clamp waveforms remain separate requirements.

4. Interface and failure contract

Logic thresholds, impedance, timing, power-up/down:
Driver, pull resistor, clamp, flyback, snubber, fuse/current limit:
Ground/isolation, creepage/clearance:
Open, short, reversed, disconnected, brownout behavior:

5. Verification

Instruments, fixtures, raw-data location:
Normal, corner, reset/power-cycle, and fault tests:
Temperature/supply/load corners:
Calibration and diagnostic checks:
Pass/fail evidence and unresolved risks:

1.9 KiB Raw Blame History