Abstract: A control system for a thermoelectric device to maintain the temperature in a storage compartment at a set point. The system includes input terminals for receiving a DC voltage and output terminals for connecting to the thermoelectric device. First and second switches are provided and coupled to the terminals for connection when enabled by the application of the DC voltage.

Abstract: A current control circuit for improved power application and control of thermoelectric devices to maintain the temperature of thermoelectric devices at a set point. The circuit includes at least one thermoelectric device, an inductor device, a current sensor and a switch device operatively connected in a series connection across a pair of terminals to allow current to flow therethrough when the switch device is activated to the "on" condition; a temperature sensor operatively positioned to monitor the temperature associated with the at least one thermoelectric device; a comparator device receives an input from the current sensor and provides an output to the switch device; a programmable control device receives an input from the temperature sensor and provides an output to the comparator device, the value of the output is determined by the difference between the sensed temperature of the at least one thermoelectric device and the desired set point temperature of the at least one thermoelectric device.

Abstract: A power control circuit for improved temperature control of thermoelectric devices to maintain the temperature of thermoelectric devices at a set point.

Abstract: A power control circuit for improved charging of a battery. The circuit includes a rectifying device to provide rectified alternating current when receiving an input from an electrical power source; a comparator device; circuitry for providing a predetermined voltage to the inverting input of the comparator device; circuitry for providing a predetermined voltage to the non-inverting input of the comparator device; regulator circuitry whose output is connected to the battery; switching circuitry connected between the regulator circuitry and the rectifying device; and control circuitry which is coupled between the switching circuitry and the output of the comparator device.

Abstract: A power control circuit for improved temperature control of thermoelectric devices to maintain the temperature of thermoelectric devices at a set point.

Abstract: Heat exchangers for a thermoelectric cooling (TEC) device. A heat dissipation assembly comprises an array of foil corrugations disposed in generally parallel spaced relationship with the heat dissipation plate of the TEC. The array of foil corrugations includes at least an inner and an outer bank of foil corrugations and at least one plate sandwiched therebetween and secured thereto by vacuum brazing thereacross. In this manner, heat conductivity is maximized for transfer of heat thereacross and from the TEC to the outer bank. A heat absorption assembly for use with the TEC comprises a thermal transfer plate having a teflon coated, serpentine fluid conduit therein facilitating the flow of a variety of fluids to be cooled therethrough without contamination thereof.

Abstract: A power supply and power control circuit for providing a variable and controlled DC voltage to a DC load. The circuit includes an electrical power source; a rectifying device to provide rectified alternating current from the electrical power source; a comparator device; circuitry for providing a predetermined voltage to the inverting input of the comparator device derived from the rectified alternating current; a sensor device to monitor a sensed value associated with the DC load; circuitry for providing an adjustable DC voltage to the non-inverting input of the comparator; a programmable control device to receive an output from the sensor device and provide an output to the circuitry for providing an adjustable DC voltage; a switching device connected between the DC load and the rectified alternating current; and control circuitry which is coupled between the switching device and the output of the comparator device and is controlled by the output of the comparator device.

Abstract: A power control circuit for improved temperature control of thermoelectric devices to maintain the temperature of thermoelectric devices at a set point.