ELECTRONICS
TEC Temperature Control for Photonics
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CASE ANALYSIS
Scenario
TEC temperature control for photonics using a Raspberry Pi running a PID algorithm to maintain stable optical device temperature.
Key decisions
- H-bridge driver for bidirectional TEC current (heating/cooling)
- NTC thermistor as temperature sensor
- External ADC (MCP3008) to overcome Raspberry Pi's lack of analog input
- SPI communication between RPi and ADC for fast sampling
When to reuse this
Precision thermal management in laser systems, optical tables, and any photonic setup requiring sub‑mK stability.
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