Create SimulationServer that wires physics engine to all virtual
instruments and exposes them over TCP. Add 'serve' CLI command to
start the server with configurable ports and physics rate.
Create InstrumentServer class with asyncio for hosting virtual SCPI
instruments over TCP. Supports registering instruments on specific
ports with port-to-instrument mapping.
Implement SCPI-based virtual DMM with DC voltage and current measurement.
Supports MEAS, CONF, and READ commands. Integrates with physics engine
for DUT output measurements.
Implement SCPI-based virtual power supply with voltage/current control
and output enable commands. Integrates with physics engine for DUT
input voltage simulation.
- TEMP:SETPOINT: Set/query target temperature
- TEMP:ACTUAL?: Query actual chamber temperature from physics engine
- TEMP:STAB?: Query temperature stability (within 0.5°C threshold)
Provides SCPI command parsing and dispatch mechanism for virtual
instruments. Includes IEEE 488.2 common commands (*IDN?, *RST, *CLS,
*OPC) and abstract methods for instrument-specific implementations.
Full implementation of step() method with thermal-electrical coupling:
- Chamber temperature first-order response to setpoint
- Case temperature with self-heating via thermal calculations
- Junction temperature from θ_jc thermal resistance
- Electrical state from temperature-dependent DUT model
- Default LDO model when none provided
Temperature-dependent LDO voltage regulator model with:
- Output voltage tempco (ppm/°C)
- Quiescent current tempco
- Dropout voltage temperature dependence
- Power dissipation calculation (Vin-Vout)*Iload + Vin*Iq
- Dropout detection
Implements DUTModel protocol for physics engine integration.
Pure functions for first-order thermal response calculations:
- Temperature derivative and update using Euler integration
- Case temperature with self-heating via θ_ca
- Junction temperature calculation via θ_jc
- Steady-state junction temperature helper
Define PhysicsEngine class with stub methods for thermal-electrical
simulation. Methods return placeholder values; full implementation
will be added in Sprint 3.
