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:
Aug. 05, 2025
Filed:
Jun. 20, 2023
Texas Instruments Incorporated, Dallas, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A ground reference circuit to generate a ground reference for a voltage reference circuit includes a resistor coupled in series with a transistor via a current mirror. The resistor is coupled between a ground reference terminal of the voltage reference circuit and a ground terminal of a power converter. The transistor control terminal is configured to receive a pulse width modulation (PWM) control signal having a duty cycle similar to a switching element duty cycle of the power converter. The current mirror circuit is coupled between a current terminal of the transistor and the ground reference terminal. A controller configured to control the switching element duty cycle may include the ground reference circuit, along with the voltage reference circuit, and a PWM circuit configured to determine the switching element duty cycle based on a comparison between a reference voltage provided by the voltage reference circuit and the converter output voltage.