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. 29, 2025
Filed:
Nov. 29, 2023
Texas Instruments Incorporated, Dallas, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A circuit includes first, second third, and fourth transistors coupled in series, and a control circuit coupled to the first, second, third, and fourth transistors. The control circuit includes a clock generator, a current sense circuit, and a zero current differentiation zone (ZC_DF) circuit. The clock generator is configured to generate first and second clocks. The second clock is in quadrature with the first clock. The current sense circuit is configured to sense a current flowing through the first transistor. The ZC_DF circuit is configured to define a ZC_DF interval starting at an edge of the second clock and ending at turn-on of the fourth transistor. The control circuit is configured to operate the first, second, third, and fourth transistors in a discontinuous conduction mode (DCM), and, in DCM, turn off the first transistor during the ZC_DF interval responsive to the current flowing through the first transistor being negative.