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:
Feb. 23, 2021
Filed:
Oct. 25, 2019
Power Integrations, Inc., San Jose, CA (US);
Hartley Fred Horwitz, Ottawa, CA;
Steven Greig Porter, Nepean, CA;
Power Integrations, Inc., San Jose, CA (US);
Abstract
A method to control a high side switch of a motor drive includes sinking a current of an ON signal to communicate a turn ON of the high side switch. A first current signal, a second current signal, a third current signal, a fourth current signal and a common mode rejection signal are generated in response to the ON signal. The ON signal in a presence of common mode noise is determined by comparing the first current signal and the second current signal. A first output signal is generated in response to determining the ON signal. A drive signal is generated responsive to the first output signal to control the high side switch in response to the ON signal in presence of common mode noise that is caused by a slewing at a half-bridge node.