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. 21, 2019
Filed:
Mar. 19, 2018
Applicant:
Dialog Semiconductor (Uk) Limited, London, GB;
Inventors:
Rupert Howes, Stroud, GB;
Ambreesh Bhattad, Swindon, GB;
Assignee:
Dialog Semiconductor (UK) Limited, London, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 1/32 (2007.01); H02H 7/12 (2006.01); H02M 1/00 (2006.01); H02M 1/38 (2007.01);
U.S. Cl.
CPC ...
H02M 3/1588 (2013.01); H02H 7/1213 (2013.01); H02M 1/32 (2013.01); H02M 1/38 (2013.01); H02M 2001/0009 (2013.01); H02M 2001/0045 (2013.01);
Abstract
A DC-DC switching converter soft start method is provided, using a scaled switch size. An increased switch resistance, higher than the normal operating switch resistance, is achieved during the startup of the switching converter. The on-resistance of the high side switch, together with a minimum duty cycle, reduces the peak inductor current of the switching converter. After a startup period, the switching converter reverts back to a normal switch resistance.