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. 23, 2018
Filed:
Sep. 29, 2017
Siemens Schweiz Ag, Zurich, CH;
Donald E. Charles, Wauconda, IL (US);
Siemens Schweiz AG, Zurich, CH;
Abstract
Motor control systems and methods. A motor control system includes a temperature compensated power supply configured to receive a supply voltage and output a temperature compensated reference voltage. The reference voltage varies according to an ambient temperature of the motor control system. The motor control system includes a microcontroller configured to receive the temperature compensated reference voltage and a sensed motor current and to produce a corresponding pulse-width-modulated (PWM) motor control signal. The microcontroller is configured to increase a duty cycle of the PWM motor control signal as a function of the temperature compensated reference voltage. The motor control system includes a motor configured to be controlled according to the duty cycle of the motor control signal.