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:
Mar. 28, 2017
Filed:
Feb. 27, 2015
Cirrus Logic, Inc., Austin, TX (US);
John L. Melanson, Austin, TX (US);
Ramin Zanbaghi, Austin, TX (US);
Thirumalai Rengachari, Chennai, IN;
Prashanth Drakshapalli, Austin, TX (US);
Rahul Singh, Austin, TX (US);
Arnab Kumar Dutta, Austin, TX (US);
Cirrus Logic, Inc., Austin, TX (US);
Abstract
A bipolar junction transistor (BJT) may be used in a power stage DC-to-DC converter, such as a converter in LED-based light bulbs. The power stage may be operated by a controller to maintain a desired current output to the LED load. The controller may operate the power stage by monitoring a start and end of a reverse recovery time of the BJT. Information regarding the start and end of the reverse recovery time may be used in the control of the power stage to improve efficiency of the power stage.