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:
Jun. 13, 2017
Filed:
Feb. 25, 2015
Texas Instruments Incorporated, Dallas, TX (US);
Theodore Ernest Yu, San Jose, CA (US);
Ali Motamedi, San Jose, CA (US);
Dingkun Du, Sunnyvale, CA (US);
Sombuddha Chakraborty, Redwood City, CA (US);
Patrick Teterud, Plano, TX (US);
Keith Thomas Sanders, Jr., San Jose, CA (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
In described examples, a switching mode power supply includes an output filter, a driver, a pulse width modulator, and pulse adaptation circuitry. The output filter is configured to provide output of the switching mode power supply. The driver is coupled to the output filter and is configured to switch current to the output filter. The pulse width modulator is configured to generate pulses that control switching of current by the driver. The pulse width modulator includes spread spectrum logic configured to randomize timing of the pulses generated by the pulse width modulator. The pulse adaptation circuitry is configured to identify an instantaneous excursion of the output of the switching mode power supply beyond a predetermined threshold, and to modify the randomized timing of the pulses produced by the pulse width modulator based on the identified instantaneous excursion.