High efficiency architecture and control scheme for solid-state HVAC applications

A controller for controlling a heat exchanger comprising a plurality of thermoelectric coolers to provide conditioned air, the controller being capable of:

• receiving system measurements indicative of one or more of the group consisting of:
• a temperature of a accept-side of a first thermoelectric cooler;
• a temperature of a reject-side of the first thermoelectric cooler;
• a temperature of a accept-side of a second thermoelectric cooler;
• a temperature of a reject-side of the second thermoelectric cooler;
• and
• an indication of a relative humidity value;
• and
• selectively controlling two or more subsets of thermoelectric coolers in the plurality of thermoelectric coolers based on the received system measurements;
• wherein a direction of air flow in the heat exchanger comprises counter air flow where the accept-side flow of mass proceeds from a hottest to a coldest of the two or more subsets of thermoelectric coolers, and the reject-side flow of mass proceeds from the coldest to the hottest of the two or more subsets of thermoelectric coolers;
• wherein selectively controlling the two or more subsets of thermoelectric coolers comprises:
• being able to provide more equal power to the two or more subsets of thermoelectric coolers.