The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 2004
Filed:
Dec. 19, 2000
Applicant:
Inventor:
William Melaragni, Billerica, MA (US);
Assignee:
Nortel Networks Limited, St. Laurent, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 2/102 ;
U.S. Cl.
CPC ...
F25B 2/102 ;
Abstract
A method and apparatus for controlling the temperature of a system are described. The method and apparatus use the Seebeck effect of a thermoelectric cooler. The apparatus includes a current source that generates current; a thermoelectric cooler having a first end and a second end connecting to the current source; and a control circuit. The control circuit monitors a voltage difference across the thermoelectric cooler and controls the current source according to the voltage difference. The voltage difference results in a temperature difference between the two ends of the thermoelectric cooler.