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. 09, 2021
Filed:
Apr. 20, 2018
Applicant:
Chirp Microsystems, Inc., Berkeley, CA (US);
Inventors:
Mitchell Kline, Berkeley, CA (US);
Richard Przybyla, Berkeley, CA (US);
David Horsley, Berkeley, CA (US);
Assignee:
CHIRP MICROSYSTEMS, INC., Berkeley, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/00 (2006.01); H02M 3/07 (2006.01); H02M 7/483 (2007.01); B06B 1/02 (2006.01); H02M 1/08 (2006.01); H02M 1/36 (2007.01);
U.S. Cl.
CPC ...
H02M 3/07 (2013.01); B06B 1/0207 (2013.01); H02M 1/08 (2013.01); H02M 1/36 (2013.01); H02M 7/483 (2013.01); H02M 2001/007 (2013.01); H02M 2001/0048 (2013.01); Y02B 70/1491 (2013.01);
Abstract
An ultrasound transducer may be driven by a driver circuit having one or more charge pumps and a multi-level inverter. The one or more charge pumps are configured to drive the ultrasound transducer only during output transitions of the inverter.