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:
Oct. 12, 2021
Filed:
Apr. 29, 2015
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
Subhash Chandra Venkata Sadhu, Bangalore, IN;
Bharath Patil, Bangalore, IN;
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/14 (2006.01); G01J 1/46 (2006.01); G01S 7/484 (2006.01); H05B 45/37 (2020.01);
U.S. Cl.
CPC ...
G01J 1/46 (2013.01); G01S 7/484 (2013.01); H05B 45/37 (2020.01); G01N 2223/506 (2013.01); Y02B 20/30 (2013.01);
Abstract
The disclosure provides a circuit to mitigate ripple. The circuit includes a controller that generates a PWM (pulse width modulated) clock signal. A DC/DC converter receives the PWM clock signal, and generates an output signal. A light source is coupled to the DC/DC converter, and receives the output signal. The light source transmits light pulses during an integration time. A time integral of the output signal during the integration time is constant during a plurality of quad time periods.