Experimental survey on active thermoelectric cooling driven by PWM techniques

This paper presents an experimental survey on active thermoelectric cooling driven by PWM techniques. For this purpose, a test bench was constructed including a thermal closet and all the necessary automation for data acquisition and process. TEC operation is evaluated for various PWM patterns, switching frequencies and duty cycle values, concluding to important findings regarding the efficiency and the cooling capability optimization. Last but not least, EMI issues due to the high frequency operation are reported and discussed.