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:
Oct. 21, 2025
Filed:
Apr. 29, 2020
Watlow Electric Manufacturing Company, St. Louis, MO (US);
Stanton H. Breitlow, Winona, MN (US);
John F. Lemke, St. Louis, MO (US);
James Hentges, Winona, MN (US);
Keith Douglas Ness, St. Louis, MO (US);
Eric Ellis, Columbia, MO (US);
William Bohlinger, Winona, MN (US);
Matthew Yender, St. Louis, MO (US);
Dean R. Mccluskey, St. Louis, MO (US);
Watlow Electric Manufacturing Company, St. Louis, MO (US);
Abstract
A control system includes a power converter being a step-down voltage converter and including a power switch. The power converter is operable to generate an adjustable output voltage and includes a sensor circuit configured to measure at least one of a voltage and an electric current of the heater. The control system includes a controller connected to the power converter and the sensor circuit. The controller is configured to determine an input parameter based on the at least one of the voltage and the electric current. The input parameter is indicative of a temperature of the heater. The controller is configured to set the output voltage applied for the heater based on the input parameter and a desired setpoint. The desired setpoint is based on an operational state of the heater. The controller is configured to operate the power switch of the power converter to generate the output voltage.