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:
Jul. 23, 1996
Filed:
Dec. 13, 1993
Paul S Mullin, Kettering, OH (US);
Raymond M Lepore, Troy, OH (US);
Hobart Corporation, Troy, OH (US);
Abstract
A temperature control circuit which is capable of operating a microprocessor on a very low voltage source. The temperature control circuit uses a pair of field effect transistors and a zener diode in an oscillator circuit to amplify the source voltage. A microprocessor is supplied by the amplified source voltage, and is connected through a transistor to a temperature sensing portion of the circuit. The microprocessor uses the transistor to turn the power to the temperature sensing circuit portion off between temperature samples. By turning the temperature sensing circuit power off between samples, the average power drain by the control circuit is an amount that can be met by the amplified voltage from the low voltage source.