Thermoelectric Cooler Temperature Controller for Fiber Optic Lasers

Detailed Schematic of TEC Temperature Controller Includes A1 thermistor Bridge Amplifier, LTC1923 Switched Mode Controller and Power Output H-Bridge. DAC Establishes Temperature Set point. Gain Adjust and Compensation Capacitor Optimize Loop Gain Bandwidth. Various LTC1923 Outputs Permit Monitoring TEC Operating Conditions