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. 23, 2017
Filed:
Dec. 22, 2014
Texas Instruments Incorporated, Dallas, TX (US);
Vijay N. Choudhary, Chandler, AZ (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A buck-boost converter with smooth transitions is disclosed. A buck-boost converter controller is disclosed including a first high side driver switch gate control signal output for controlling a first high side driver device; a first low side driver switch gate control signal output for controlling a first low side driver device; a second high side driver switch gate control signal output for controlling a second high side driver device; a second low side driver switch gate control signal output for controlling a second low side driver device; a state machine having four states comprising a buck state, a boost state, a transition buck state, and a transition boost state; a hysteresis timer indicating a pulse width greater than a predetermined threshold coupled to the state machine; and a minimum timer indicating a pulse width less than a predetermined threshold coupled to the state machine. Methods are also disclosed.