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:
Oct. 05, 2021
Filed:
Apr. 21, 2020
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Giancarlo Ragone, Roccella Jonica, IT;
Vanni Poletto, Milan, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
A drive circuit for airbag systems, for instance includes a differential transconductance amplifier having a first input node, a second input node, an output node coupled to the second input node via a feedback line; a transistor coupled between a drive node and a supply node configured to be coupled to a power supply source; a control node coupled to the control electrode of the transistor and the output node; a Zener diode arrangement having cathode and anode terminals coupled to the supply node and the first input node, respectively; a pull-up component arranged in parallel with the Zener diode arrangement; and an enable switch coupled to the first input node and referred to ground and switchable between a conductive state and a non-conductive state with the differential transconductance amplifier providing controlled current discharging/charging of the control node to make the transistor conductive/non-conductive, respectively.