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:
May. 18, 2021
Filed:
Apr. 13, 2020
Texas Instruments Incorporated, Dallas, TX (US);
Manish Bhardwaj, Sugarland, TX (US);
Shamim Choudhury, Katy, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A drive circuit includes a transient detector that includes a detector input to receive a loop error signal from a phased locked loop (PLL) and generates a transient detected output signal if a transient is detected in an alternating current (AC) input voltage. A controller includes a controller input to receive the transient detected output signal from the transient detector and a feedback input to sense the AC input voltage provided to a bridge circuit. The controller is configured to apply a PLL angle output signal from the PLL to control switch output signals to the bridge circuit if the transient detected output signal is not generated and configured to apply the AC input voltage sensed from the feedback input to control the switch output signals to the bridge circuit if the transient detected output signal is generated.