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. 14, 2017
Filed:
Nov. 10, 2014
Applicant:
Thierry Sicard, Austin, TX (US);
Inventor:
Thierry Sicard, Austin, TX (US);
Assignee:
NXP USA, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 3/00 (2006.01); H03K 17/687 (2006.01); H03K 17/16 (2006.01);
U.S. Cl.
CPC ...
H03K 17/687 (2013.01); H03K 17/165 (2013.01); H03K 17/168 (2013.01);
Abstract
A circuit including and a method utilizing an improved bootstrap topology provide power to a high side (HS) driver for high efficiency applications. The improved bootstrap topology includes a transfer capacitor to store charge and to recharge a bootstrap capacitor, which provides power to the HS driver. The improved bootstrap topology also includes a resistor connected to the transfer capacitor to charge the transfer capacitor from a voltage source and to isolate the transfer capacitor from high voltage pulses.