The circuit in Fig 1 controls the temperature of a cooled CCD by using a two- or three-stage Peltier cooler running at about 50W. Usually, you would run a Peltier cooler at close to full cooling power ...
Earlier this year, we presented a series of LTSpice simulations with temperature control provided by NTC thermistor SPICE models driven by a voltage: Old-School Analog Temperature Control Circuits ...
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