US 11,682,893 B2
Squib diver circuit for a deployable restraint including an integrated circuit and a voltage regulator
Vincent Colarossi, Southfield, MI (US); and Bankim Patel, Southfield, MI (US)
Assigned to Veoneer US, LLC, Southfield, MI (US)
Filed by VEONEER US, INC., Southfield, MI (US)
Filed on Jul. 14, 2021, as Appl. No. 17/375,744.
Application 17/375,744 is a continuation of application No. 15/849,456, filed on Dec. 20, 2017, granted, now 11,101,636.
Prior Publication US 2021/0344189 A1, Nov. 4, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H02H 3/16 (2006.01); H02H 1/00 (2006.01); H02H 7/20 (2006.01); B60R 21/017 (2006.01)
CPC H02H 3/16 (2013.01) [B60R 21/017 (2013.01); H02H 1/0007 (2013.01); H02H 7/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A squib driver circuit for deployment of a deployable restraint in a vehicle, the squib driver circuit comprising:
an integrated circuit formed on a single chip including:
an input terminal for receiving an input voltage used to fire the deployable restraint,
a high side feed terminal configured for communication with the deployable restraint, a low side return terminal configured for communication with the deployable restraint,
a high side driver configured to supply current from the input terminal to the high side feed terminal, and
a low side driver configured to supply current from the low side return terminal to an electrical ground; and
a voltage regulator configured to regulate the input voltage at the input terminal to a minimum firing voltage to deploy the deployable restraint, wherein the voltage regulator includes at least one circuit component independent of the integrated circuit.