Refrigeration – Using electrical or magnetic effect – Thermoelectric; e.g. – peltier effect
Patent
1995-07-14
1997-11-04
Tanner, Harry B.
Refrigeration
Using electrical or magnetic effect
Thermoelectric; e.g., peltier effect
F25B 2102
Patent
active
056827482
ABSTRACT:
A power control circuit for improved temperature control of thermoelectric devices to maintain the temperature of thermoelectric devices at a set point. The circuit includes a rectifying device to provide rectified alternating current when receiving an input from an electrical power source; a flyback power supply to supply a DC voltage to the thermoelectric device; a switching device to modulate the rectified alternating current across the primary of the flyback transformer; sensor circuitry to monitor the temperature of the thermoelectric device; and a programmable control device to receive an output from the sensor circuitry and provide a control signal to the switching device, the control signal being determined by the difference between the sensed temperature of the thermoelectric device and the desired set point to allow the DC voltage to the thermoelectric device to bring the temperature of the thermoelectric device to the set point and maintain the temperature of the thermoelectric device at the set point.
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DeVilbiss Roger S.
Powell, Jr. Harry C.
Quisenberry Tony M.
Tanner Harry B.
Thermotek, Inc.
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