ATD035 Portable Peltier Thermoelectric Dehumidifier Small Volume
Thermoelectric coolers operate from a DC power input. These DC
power supplies can range from simple batteries to sophisticated
closed loop temperature control/power supply circuits. Both linear
and switching power supplies can be used to operate TEC's. The
"quality" of the DC current is important. High quality DC current
is smooth and constant with very low ripple or noise. All current
derived from AC sources contains ripple. Ripple is significant
because it can affect the performance of the TEC. Unfiltered
full-rectified AC voltage has a ripple factor of approximately 48%
which can decrease the performance of the TEC by as much as 23%.
Marlow Industries recommends limiting the ripple factor to less
than 10% which will reduce the loss in performance to less than 1%.
Listed on the following page are some examples of power supply