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:
Jul. 05, 2022
Filed:
Jul. 06, 2018
Applicant:
Stmicroelectronics (Rousset) Sas, Rousset, FR;
Inventors:
Philippe Bienvenu, Saint-Maximin, FR;
Antonio Calandra, Aix en Provence, FR;
Assignee:
STMicroelectronics (Rousset) SAS, Rousset, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 17/082 (2006.01); H03K 5/24 (2006.01); H03K 3/037 (2006.01); H02H 3/20 (2006.01); H02H 3/00 (2006.01);
U.S. Cl.
CPC ...
H03K 17/0822 (2013.01); H03K 3/037 (2013.01); H03K 5/24 (2013.01); H02H 3/006 (2013.01); H02H 3/202 (2013.01);
Abstract
A protection circuit for a transistor switch coupled to a power supply rail operates to modulate a control voltage at a control terminal of the transistor switch. A first circuit detects an overload across the terminals of the switch with respect to a threshold to generate a signal which modulates the control voltage. A second circuit operates to adjust a value of the threshold in response to sensed variations in a supply voltage at the power supply rail.