Page actions
instrument chain / verified-workflow-definition
Electronics Power-Rail Designer
From supply to a cool-running, properly-routed rail.
Status: observedLifecycle: verified-workflow-definition
Goal
From supply to a cool-running, properly-routed rail.
Instrument chain
- 01Voltage/Current Divider
sense/scale
VERIFIED - 02Voltage Regulator (Linear) Resistor/Output Calculator
set Vout
VERIFIED - 03Linear Regulator Power Dissipation & Heatsink Need
dissipation
VERIFIED - 04Heat Sink Thermal Resistance Calculator
thermal chain
VERIFIED - 05LED Series Resistor Calculator
indicators
VERIFIED - 06PCB Trace Width Calculator (IPC-2221)
copper for current
VERIFIED - 07PCB Trace Resistance & Voltage Drop
IR drop
VERIFIED - 08PCB Via Current Capacity Calculator
vias
VERIFIED - 09Series/Parallel Resistor Combiner
networks
VERIFIED
Handoffs and cross-checks
Vin−Vout×I → Pd → θ chain → Tj; rail current → trace width → IR drop.
PointGuard stance
Close the thermal loop every time: Tj from Ta+Pd·Σθ must clear Tj_max with stated margin before the design is "done".
Sources and evidence
These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.
INSTRUMENT_COMBOS.jsonVERIFIED_LEDGER.json